Question: Which country does this aircraft come from?

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title: "De Havilland Canada DHC-6 Twin Otter" content: De Havilland Canada DHC-6 Twin Otter The de Havilland Canada DHC-6 Twin Otter, currently marketed as the Viking Air DHC-6 Twin Otter, is a Canadian 19-passenger STOL (Short Takeoff and Landing) utility aircraft developed by de Havilland Canada and currently produced by Viking Air. The aircraft's fixed tricycle undercarriage, STOL capabilities, twin turboprop engines and high rate of climb have made it a successful commuter passenger airliner as well as a cargo and medical evacuation aircraft. In addition, the Twin Otter has been popular with commercial skydiving operations, and is used by the United States Army Parachute Team and the

title: "De Havilland Canada DHC-6 Twin Otter" content: United States Air Force's 98th Flying Training Squadron. Development of the aircraft began in 1964, with the first flight on May 20, 1965. A twin-engine replacement for the single-engine DHC-3 Otter retaining DHC's renowned STOL qualities, its design features included double-slotted trailing-edge flaps and ailerons that work in unison with the flaps to boost STOL performance. The availability of the Pratt & Whitney Canada PT6A-20 turboprop in the early 1960s made the concept of a twin more feasible. To bush operators, the improved reliability of turboprop power and the improved performance of a twin-engine configuration made it an immediately popular

title: "De Havilland Canada DHC-6 Twin Otter" content: alternative to the piston-powered Otter which had been flying since 1951. The first six aircraft produced were designated Series 1, indicating that they were prototype aircraft. The initial production run consisted of Series 100 aircraft, serial numbers seven to 115 inclusive. In 1968, Series 200 production began with serial number 116. Changes made at the beginning of Series 200 production included improving the STOL performance, adding a longer nose that was equipped with a larger baggage compartment (except for aircraft fitted with floats), and fitting a larger door to the rear baggage compartment. All Series 1, 100, and 200 aircraft

title: "De Havilland Canada DHC-6 Twin Otter" content: and their variants (110, 210) were fitted with the 550-shaft-horsepower PT6A-20 engines. In 1969, the Series 300 was introduced, beginning with serial number 231. Both aircraft performance and payload were improved by fitting more powerful PT6A-27 engines. This was a engine that was flat-rated to for use in the Series 300 Twin Otter. The Series 300 proved to be the most successful variant by far, with 614 Series 300 aircraft and their subvariants (Series 310 for United Kingdom operators, Series 320 for Australian operators, etc.) sold before production in Toronto by de Havilland Canada ended in 1988. In 1976, a

title: "De Havilland Canada DHC-6 Twin Otter" content: new -300 would have cost $700,000 ($M 31 years later) and is still worth more than $2.5 million in 2018 despite the -400 introduction, many years after the -300 production ceased. After Series 300 production ended, the remaining tooling was purchased by Viking Air of Victoria, British Columbia, which manufactures replacement parts for all of the out-of-production de Havilland Canada aircraft. On February 24, 2006, Viking purchased the type certificates from Bombardier Aerospace for all the out-of-production de Havilland Canada aircraft (DHC-1 through DHC-7). The ownership of the certificates gives Viking the exclusive right to manufacture new aircraft. On July

title: "De Havilland Canada DHC-6 Twin Otter" content: 17, 2006, at the Farnborough Air Show, Viking Air announced its intention to offer a Series 400 Twin Otter. On April 2, 2007, Viking announced that with 27 orders and options in hand, it was restarting production of the Twin Otter, equipped with more powerful Pratt & Whitney Canada PT6A-34 engines. As of November 2007, 40 firm orders and 10 options had been taken and a new final assembly plant was established in Calgary, Alberta. Zimex Aviation of Switzerland received the first new production aircraft, serial number 845, in July 2010. By mid-2014, Viking had built 55 new aircraft at

title: "De Havilland Canada DHC-6 Twin Otter" content: its Calgary facility. The production rate as of summer 2014 was about 24 aircraft per year. In April 2015, Viking announced a reduction of the production rate to 18 aircraft per year. On June 17, 2015, Viking further announced a partnership with a Chinese firm, Reignwood Aviation Group. The group will purchase 50 aircraft and become the exclusive representatives for new Series 400 Twin Otters in China. Major changes introduced with the Series 400 include Honeywell Primus Apex fully integrated avionics, deletion of the AC electrical system, deletion of the beta backup system, modernization of the electrical and lighting systems,

title: "De Havilland Canada DHC-6 Twin Otter" content: and use of composites for nonload-bearing structures such as doors. The 100th Series 400 Twin Otter (MSN 944) was displayed at the July 2017 EAA AirVenture Oshkosh. Currently, 38% are operated as regional airliners, 31% in military aviation or special missions, 26% in industrial support and 5% in private air charter. Additionally, 70 are on regular landing gear wheels, 18 are configured as straight or amphibious floatplanes, 10 have tundra tires and 2 have wheel skis. Twin Otters could be delivered directly from the factory with floats, skis, or tricycle landing gear fittings, making them adaptable bush planes for remote

title: "De Havilland Canada DHC-6 Twin Otter" content: and northern areas. Areas including Canada and the United States, (specifically Alaska) had much of the demand. Many Twin Otters still serve in the far north, but they can also be found in Africa, Australia, Asia, Antarctica, and other regions where bush planes are the optimum means of travel. Their versatility and maneuverability have made them popular in areas with difficult flying environments such as Papua New Guinea. In Norway, the Twin Otter paved the way for the network of short-field airports, connecting rural areas with larger towns. The Twin Otter showed outstanding reliability, and remained in service until 2000

title: "De Havilland Canada DHC-6 Twin Otter" content: on certain routes. Widerøe of Norway was, at one time, the world's largest operator of Twin Otters. During one period of its tenure in Norway, the Twin Otter fleet achieved over 96,000 cycles (take-off, flight, and landing) per year. A number of commuter airlines in the United States got their start by operating Twin Otters in scheduled passenger operations. Houston Metro Airlines (which later changed its name to Metro Airlines) constructed their own STOLport airstrip with a passenger terminal and maintenance hangar in Clear Lake City, Texas, near the NASA Johnson Space Center. The Clear Lake City STOLport was specifically

title: "De Havilland Canada DHC-6 Twin Otter" content: designed for Twin Otter operations. According to the February 1976 edition of the "Official Airline Guide", Houston Metro operated 22 round-trip flights every weekday at this time between Clear Lake City (CLC) and Houston Intercontinental Airport (IAH, now Houston George Bush Intercontinental Airport) in a scheduled passenger airline shuttle operation. Houston Metro had agreements in place for connecting passenger feed services with Continental Airlines and Eastern Airlines at Houston Intercontinental, with this major airport having a dedicated STOL landing area at the time specifically for Twin Otter flight operations. The Clear Lake City STOLport is no longer in existence. The

title: "De Havilland Canada DHC-6 Twin Otter" content: Walt Disney World resort in Florida was also served with scheduled airline flights operated with Twin Otter aircraft. The Walt Disney World Airport (DWS), also known as the Lake Buena Vista STOLport, was a private airfield constructed by the Walt Disney Company with Twin Otter operations in mind. In the early 1970s, Shawnee Airlines operated scheduled Twin Otter flights between the Disney resort and nearby Orlando Jetport (MCO, now Orlando International Airport), as well as to Tampa International Airport (TPA). This service by Shawnee Airlines is mentioned in the "Air Commuter Section" of the Sept, 6, 1972 Eastern Air Lines

title: "De Havilland Canada DHC-6 Twin Otter" content: system timetable as a connecting service to and from Eastern flights. This STOL airfield is no longer in use. Another commuter airline in the U.S., Rocky Mountain Airways, operated Twin Otters from the Lake County Airport in Leadville, CO. At an elevation of 9,927 feet above mean sea level, this airport is the highest airfield in the U.S. ever to have received scheduled passenger airline service, thus demonstrating the wide-ranging flight capabilities of the Twin Otter. Rocky Mountain Airways went on to become the worldwide launch customer for the larger, four-engine de Havilland Canada DHC-7 Dash 7 STOL turboprop, but

title: "De Havilland Canada DHC-6 Twin Otter" content: continued to operate the Twin Otter, as well. Larger scheduled passenger airlines based in the United States, Canada, Mexico, the Caribbean and Australia, particularly jetliner operators, also flew Twin Otters, with the aircraft providing connecting feeder service for these airlines. Jet aircraft operators which also flew the Twin Otter included Aeronaves de Mexico, Air BC, Alaska Airlines, ALM Antillean Airlines, Ansett Airlines, Cayman Airways, Frontier Airlines (1950-1986), LIAT, Norcanair, Nordair, Ozark Air Lines, Pacific Western Airlines, Quebecair, South Pacific Island Airways, Time Air, Transair (Canada), Trans Australian Airlines (TAA), Wardair Canada and Wien Air Alaska. In many cases, the excellent

title: "De Havilland Canada DHC-6 Twin Otter" content: operating economics of the Twin Otter allowed airlines large and small to provide scheduled passenger flights to communities that most likely would otherwise never have received air service. Twin Otters are also a staple of Antarctic transportation. Four Twin Otters are employed by the British Antarctic Survey on research and supply flights, and several are employed by the United States Antarctic Program via contract with Kenn Borek Air. On April 24–25, 2001, two Twin Otters performed the first winter flight to Amundsen–Scott South Pole Station to perform a medical evacuation. On June 21–22, 2016, Kenn Borek Air's Twin Otters performed

title: "De Havilland Canada DHC-6 Twin Otter" content: the third winter evacuation flight to Amundsen–Scott South Pole Station to remove two people for medical reasons. The Argentine Air Force has used the Twin Otter in Antarctica since the 1970s, with at least one of them deployed year-round at Marambio Base. The Chilean Air Force has operated the type since 1980, usually having an example based at Presidente Frei Antarctic base of the South Shetland islands. As of August 2006, a total of 584 Twin Otter aircraft (all variants) remain in service worldwide. Major operators include: Libyan Arab Airlines (16), Maldivian Air Taxi (22), Trans Maldivian Airways (23), Kenn

title: "De Havilland Canada DHC-6 Twin Otter" content: Borek Air (42) and Scenic Airlines (11). Some 115 airlines operate smaller numbers of the aircraft including Yeti Airlines in Nepal, Malaysia Airlines (which uses the Twin Otter exclusively for passenger and freight transportation to the Kelabit Highlands region in Sarawak), and in the United Kingdom, the FlyBe franchise operator Loganair which uses the aircraft to service the island of Barra in the Hebrides islands. This daily scheduled service is unique as the aircraft lands on the beach and the schedule is partly influenced by the tide tables. Trials in Barra with heavier planes than the Twin Otter, like the

title: "De Havilland Canada DHC-6 Twin Otter" content: Short 360, failed because they sank in the sand. The Twin Otter is also used for landing at the world's shortest commercial runway on the Caribbean island of Saba, Netherlands Antilles. The Twin Otter has been popular with commercial skydiving operations. It can carry up to 22 skydivers to over 17,000 ft (a large load compared to most other aircraft in the industry); presently, the Twin Otter is used in skydiving operations in many countries. The United States Air Force operates three Twin Otters for the United States Air Force Academy's skydiving team. On 26 April 2001, the first ever

title: "De Havilland Canada DHC-6 Twin Otter" content: air rescue during polar winter from the South Pole occurred with a ski-equipped Twin Otter operated by Kenn Borek Air. On September 25, 2008, the Series 400 Technology Demonstrator achieved "power on" status in advance of an official rollout. First flight of the Series 400 technical demonstrator, C-FDHT, took place October 1, 2008, at Victoria Airport. Two days later, the aircraft departed Victoria for a ferry flight to Orlando, Florida, site of the 2008 National Business Aviation Association (NBAA) Conference and exhibition. The first new build Series 400 Twin Otter (SN 845) made its first flight on February 16, 2010,

title: "De Havilland Canada DHC-6 Twin Otter" content: in Calgary, Alberta. Transport Canada presented Viking Air Limited with an amended DHC-6 Type Certificate including the Series 400 on July 21, 2010. Six years after, in July 2016, 100 series 400 have been delivered to 34 customers operating in 29 countries. In June 2017, 125 have been made since restarting production in 2010. 270 Twin Otters were in airline service in 2018, and 14 on order : 111 in North/South America, 117 in Asia Pacific & Middle East (14 orders), 26 in Europe and 13 in Africa. The Twin Otter has been popular not only with bush operators as

title: "De Havilland Canada DHC-6 Twin Otter" content: a replacement for the single-engine de Havilland Canada DHC-3 Otter but also with other civil and military customers, with over 890 aircraft built. Many commuter airlines in the U.S. got their start by flying the Twin Otter in scheduled passenger operations. Kaymac Inc., a government civilian contractor based in Nevada, operates 18. De Havilland Canada DHC-6 Twin Otter The de Havilland Canada DHC-6 Twin Otter, currently marketed as the Viking Air DHC-6 Twin Otter, is a Canadian 19-passenger STOL (Short Takeoff and Landing) utility aircraft developed by de Havilland Canada and currently produced by Viking Air. The aircraft's fixed tricycle

Answer: Canada

Answer: British North America

Answer: CA

Answer: Dominion of Canada

Answer: Canada

Answer: CAN


Question: What is the maximum capacity of this aircraft?

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title: "De Havilland Canada DHC-6 Twin Otter" content: De Havilland Canada DHC-6 Twin Otter The de Havilland Canada DHC-6 Twin Otter, currently marketed as the Viking Air DHC-6 Twin Otter, is a Canadian 19-passenger STOL (Short Takeoff and Landing) utility aircraft developed by de Havilland Canada and currently produced by Viking Air. The aircraft's fixed tricycle undercarriage, STOL capabilities, twin turboprop engines and high rate of climb have made it a successful commuter passenger airliner as well as a cargo and medical evacuation aircraft. In addition, the Twin Otter has been popular with commercial skydiving operations, and is used by the United States Army Parachute Team and the

title: "De Havilland Canada DHC-6 Twin Otter" content: United States Air Force's 98th Flying Training Squadron. Development of the aircraft began in 1964, with the first flight on May 20, 1965. A twin-engine replacement for the single-engine DHC-3 Otter retaining DHC's renowned STOL qualities, its design features included double-slotted trailing-edge flaps and ailerons that work in unison with the flaps to boost STOL performance. The availability of the Pratt & Whitney Canada PT6A-20 turboprop in the early 1960s made the concept of a twin more feasible. To bush operators, the improved reliability of turboprop power and the improved performance of a twin-engine configuration made it an immediately popular

title: "De Havilland Canada DHC-6 Twin Otter" content: alternative to the piston-powered Otter which had been flying since 1951. The first six aircraft produced were designated Series 1, indicating that they were prototype aircraft. The initial production run consisted of Series 100 aircraft, serial numbers seven to 115 inclusive. In 1968, Series 200 production began with serial number 116. Changes made at the beginning of Series 200 production included improving the STOL performance, adding a longer nose that was equipped with a larger baggage compartment (except for aircraft fitted with floats), and fitting a larger door to the rear baggage compartment. All Series 1, 100, and 200 aircraft

title: "De Havilland Canada DHC-6 Twin Otter" content: and their variants (110, 210) were fitted with the 550-shaft-horsepower PT6A-20 engines. In 1969, the Series 300 was introduced, beginning with serial number 231. Both aircraft performance and payload were improved by fitting more powerful PT6A-27 engines. This was a engine that was flat-rated to for use in the Series 300 Twin Otter. The Series 300 proved to be the most successful variant by far, with 614 Series 300 aircraft and their subvariants (Series 310 for United Kingdom operators, Series 320 for Australian operators, etc.) sold before production in Toronto by de Havilland Canada ended in 1988. In 1976, a

title: "De Havilland Canada DHC-6 Twin Otter" content: designed for Twin Otter operations. According to the February 1976 edition of the "Official Airline Guide", Houston Metro operated 22 round-trip flights every weekday at this time between Clear Lake City (CLC) and Houston Intercontinental Airport (IAH, now Houston George Bush Intercontinental Airport) in a scheduled passenger airline shuttle operation. Houston Metro had agreements in place for connecting passenger feed services with Continental Airlines and Eastern Airlines at Houston Intercontinental, with this major airport having a dedicated STOL landing area at the time specifically for Twin Otter flight operations. The Clear Lake City STOLport is no longer in existence. The

title: "De Havilland Canada DHC-6 Twin Otter" content: Walt Disney World resort in Florida was also served with scheduled airline flights operated with Twin Otter aircraft. The Walt Disney World Airport (DWS), also known as the Lake Buena Vista STOLport, was a private airfield constructed by the Walt Disney Company with Twin Otter operations in mind. In the early 1970s, Shawnee Airlines operated scheduled Twin Otter flights between the Disney resort and nearby Orlando Jetport (MCO, now Orlando International Airport), as well as to Tampa International Airport (TPA). This service by Shawnee Airlines is mentioned in the "Air Commuter Section" of the Sept, 6, 1972 Eastern Air Lines

title: "De Havilland Canada DHC-6 Twin Otter" content: continued to operate the Twin Otter, as well. Larger scheduled passenger airlines based in the United States, Canada, Mexico, the Caribbean and Australia, particularly jetliner operators, also flew Twin Otters, with the aircraft providing connecting feeder service for these airlines. Jet aircraft operators which also flew the Twin Otter included Aeronaves de Mexico, Air BC, Alaska Airlines, ALM Antillean Airlines, Ansett Airlines, Cayman Airways, Frontier Airlines (1950-1986), LIAT, Norcanair, Nordair, Ozark Air Lines, Pacific Western Airlines, Quebecair, South Pacific Island Airways, Time Air, Transair (Canada), Trans Australian Airlines (TAA), Wardair Canada and Wien Air Alaska. In many cases, the excellent

title: "De Havilland Canada DHC-6 Twin Otter" content: the third winter evacuation flight to Amundsen–Scott South Pole Station to remove two people for medical reasons. The Argentine Air Force has used the Twin Otter in Antarctica since the 1970s, with at least one of them deployed year-round at Marambio Base. The Chilean Air Force has operated the type since 1980, usually having an example based at Presidente Frei Antarctic base of the South Shetland islands. As of August 2006, a total of 584 Twin Otter aircraft (all variants) remain in service worldwide. Major operators include: Libyan Arab Airlines (16), Maldivian Air Taxi (22), Trans Maldivian Airways (23), Kenn

title: "De Havilland Canada DHC-6 Twin Otter" content: a replacement for the single-engine de Havilland Canada DHC-3 Otter but also with other civil and military customers, with over 890 aircraft built. Many commuter airlines in the U.S. got their start by flying the Twin Otter in scheduled passenger operations. Kaymac Inc., a government civilian contractor based in Nevada, operates 18. De Havilland Canada DHC-6 Twin Otter The de Havilland Canada DHC-6 Twin Otter, currently marketed as the Viking Air DHC-6 Twin Otter, is a Canadian 19-passenger STOL (Short Takeoff and Landing) utility aircraft developed by de Havilland Canada and currently produced by Viking Air. The aircraft's fixed tricycle

Answer: 19


Question: What is the maximum capacity of this aircraft?

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title: "Embraer EMB 120 Brasilia" content: were collected and incorporated to EMB 120 design. Thus, a completely new aircraft – no longer related to the 12X family – was launched. No common parts from EMB 121 Xingu were used, and the capacity was revised from 24 to 30 seats. Originally designed to utilise the new 1500 shp Pratt & Whitney Canada PW115 turboprop, it was later upgraded to the 1892 eshp PW118. The Brasilia attracted immediate interest from many regional airlines, particularly in the US. The size, speed and ceiling allowed faster and more direct services around the US and Europe, compared to similar aircraft. The

Answer: 30


Question: who/what operates this aircraft?

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title: "Boeing 767" content: the 777, a larger wide-body twinjet. In the 1990s, the 767 became the most frequently used airliner for transatlantic flights between North America and Europe. The 767 is the first twinjet wide-body type to reach 1,000 aircraft delivered. , Boeing has received 1,224 orders for the 767 from 74 customers with 1,118 delivered. A total of 742 of these aircraft were in service in July 2018. The most popular variant is the 767-300ER with 583 delivered. Delta Air Lines is the largest operator with 77 aircraft. Competitors have included the Airbus A300, A310, and A330-200. Non-passenger variants of the 767

title: "Boeing 767" content: similar to the one which had debuted on the Airbus A300, became the baseline configuration. The decision to use two engines reflected increased industry confidence in the reliability and economics of new-generation jet powerplants. While airline requirements for new wide-body aircraft remained ambiguous, the 7X7 was generally focused on mid-size, high-density markets. As such, it was intended to transport large numbers of passengers between major cities. Advancements in civil aerospace technology, including high-bypass-ratio turbofan engines, new flight deck systems, aerodynamic improvements, and lighter construction materials were to be applied to the 7X7. Many of these features were also included in

title: "Boeing 767" content: differentiation purposes. The 767 was officially launched on July 14, 1978, when United Airlines ordered 30 of the 767-200 variant, followed by 50 more 767-200 orders from American Airlines and Delta Air Lines later that year. The 767-100 was ultimately not offered for sale, as its capacity was too close to the 757's seating, while the 777 trijet was eventually dropped in favor of standardizing around the twinjet configuration. In the late 1970s, operating cost replaced capacity as the primary factor in airliner purchases. As a result, the 767's design process emphasized fuel efficiency from the outset. Boeing targeted a

title: "Boeing 767" content: 20 to 30 percent cost saving over earlier aircraft, mainly through new engine and wing technology. As development progressed, engineers used computer-aided design for over a third of the 767's design drawings, and performed 26,000 hours of wind tunnel tests. Design work occurred concurrently with the 757 twinjet, leading Boeing to treat both as almost one program to reduce risk and cost. Both aircraft would ultimately receive shared design features, including avionics, flight management systems, instruments, and handling characteristics. Combined development costs were estimated at $3.5 to $4 billion. Early 767 customers were given the choice of Pratt & Whitney

title: "Boeing 767" content: in July 1979. The prototype aircraft, registered N767BA and equipped with JT9D turbofans, rolled out on August 4, 1981. By this time, the 767 program had accumulated 173 firm orders from 17 customers, including Air Canada, All Nippon Airways, Britannia Airways, Transbrasil, and Trans World Airlines (TWA). On September 26, 1981, the prototype took its maiden flight under the command of company test pilots Tommy Edmonds, Lew Wallick, and John Brit. The maiden flight was largely uneventful, save for the inability to retract the landing gear because of a hydraulic fluid leak. The prototype was used for subsequent flight tests.

title: "Boeing 767" content: The 10-month 767 flight test program utilized the first six aircraft built. The first four aircraft were equipped with JT9D engines, while the fifth and sixth were fitted with CF6 engines. The test fleet was largely used to evaluate avionics, flight systems, handling, and performance, while the sixth aircraft was used for route-proving flights. During testing, pilots described the 767 as generally easy to fly, with its maneuverability unencumbered by the bulkiness associated with larger wide-body jets. Following 1,600 hours of flight tests, the JT9D-powered 767-200 received certification from the US Federal Aviation Administration (FAA) and the UK Civil Aviation

title: "Boeing 767" content: Authority (CAA) in July 1982. The first delivery occurred on August 19, 1982, to United Airlines. The CF6-powered 767-200 received certification in September 1982, followed by the first delivery to Delta Air Lines on October 25, 1982. The 767 entered service with United Airlines on September 8, 1982. The aircraft's first commercial flight used a JT9D-powered 767-200 on the Chicago-to-Denver route. The CF6-powered 767-200 commenced service three months later with Delta Air Lines. Upon delivery, early 767s were mainly deployed on domestic routes, including US transcontinental services. American Airlines and TWA began flying the 767-200 in late 1982, while Air

title: "Boeing 767" content: extended-range twin-engine operational performance standards (ETOPS) regulations, the FAA's safety rules governing transoceanic flights by aircraft with two engines. Before the 767, overwater flight paths of twinjets could be no more than 90 minutes away from diversion airports. In May 1985, the FAA granted its first approval for 120-minute ETOPS flights to 767 operators, on an individual airline basis starting with TWA, provided that the operator met flight safety criteria. This allowed the aircraft to fly overseas routes at up to two hours' distance from land. The larger safety margins were permitted because of the improved reliability demonstrated by the

title: "Boeing 767" content: proposing larger models, including a partial double-deck version informally named the "Hunchback of Mukilteo" (from a town near Boeing's Everett factory) with a 757 body section mounted over the aft main fuselage. In 1986, Boeing proposed the 767-X, a revised model with extended wings and a wider cabin, but received little interest. By 1988, the 767-X had evolved into an all-new twinjet, which revived the 777 designation. Until the 777's 1995 debut, the 767-300 and 767-300ER remained Boeing's second-largest wide-bodies behind the 747. Buoyed by a recovering global economy and ETOPS approval, 767 sales accelerated in the mid-to-late 1980s; 1989

title: "Boeing 767" content: flights to secondary population centers, thereby eliminating the need for connecting flights. The increased number of cities receiving non-stop services caused a paradigm shift in the airline industry as point-to-point travel gained prominence at the expense of the traditional hub-and-spoke model. In February 1990, the first 767 equipped with Rolls-Royce RB211 turbofans, a 767-300, was delivered to British Airways. Six months later, the carrier temporarily grounded its entire 767 fleet after discovering cracks in the engine pylons of several aircraft. The cracks were related to the extra weight of the RB211 engines, which are heavier than other 767 engines. During

title: "Boeing 767" content: the , an Airborne Early Warning and Control (AWACS) variant based on the 767-200ER. The first two , featuring extensive modifications to accommodate surveillance radar and other monitoring equipment, were delivered in 1998 to the Japan Self-Defense Forces. In November 1995, after abandoning development of a smaller version of the 777, Boeing announced that it was revisiting studies for a larger 767. The proposed 767-400X, a second stretch of the aircraft, offered a 12 percent capacity increase versus the 767-300, and featured an upgraded flight deck, enhanced interior, and greater wingspan. The variant was specifically aimed at Delta Air Lines'

title: "Boeing 767" content: pending replacement of its aging Lockheed L-1011 TriStars, and faced competition from the A330-200, a shortened derivative of the Airbus A330. In March 1997, Delta Air Lines launched the 767-400ER when it ordered the type to replace its L-1011 fleet. In October 1997, Continental Airlines also ordered the 767-400ER to replace its McDonnell Douglas DC-10 fleet. The type completed its first flight on October 9, 1999, and entered service with Continental Airlines on September 14, 2000. In the early 2000s, cumulative 767 deliveries approached 900, but new sales declined during an airline industry downturn. In 2001, Boeing dropped plans for

title: "Boeing 767" content: KC-767s to replace its aging KC-135 tankers. The plan was suspended in March 2004 amid a conflict of interest scandal, resulting in multiple US government investigations and the departure of several Boeing officials, including Philip Condit, the company's chief executive officer, and chief financial officer Michael Sears. The first KC-767s were delivered in 2008 to the Japan Self-Defense Forces. In late 2002, after airlines expressed reservations about its emphasis on speed over cost reduction, Boeing halted development of the Sonic Cruiser. The following year, the manufacturer announced the 7E7, a mid-size 767 successor made from composite materials which promised to

title: "Boeing 767" content: orders for the 767 declined from 24 in 2008 to just three in 2010. During the same period, operators upgraded aircraft already in service; in 2008, the first 767-300ER retrofitted with blended winglets from Aviation Partners Incorporated debuted with American Airlines. The manufacturer-sanctioned winglets, at in height, improved fuel efficiency by an estimated 6.5 percent. Other carriers including All Nippon Airways and Delta Air Lines also ordered winglet kits. On February 2, 2011, the 1,000th 767 rolled out, destined for All Nippon Airways. The aircraft was the 91st 767-300ER ordered by the Japanese carrier, and with its completion the 767

title: "Boeing 767" content: became the second wide-body airliner to reach the thousand-unit milestone after the 747. The 1,000th aircraft also marked the last model produced on the original 767 assembly line. Beginning with the 1,001st aircraft, production moved to another area in the Everett factory which occupied about half of the previous floor space. The new assembly line made room for 787 production and aimed to boost manufacturing efficiency by over twenty percent. At the inauguration of its new assembly line, the 767's order backlog numbered approximately 50, only enough for production to last until 2013. Despite the reduced backlog, Boeing officials expressed

title: "Boeing 767" content: parts as the 757. A raised cockpit floor and the same forward cockpit windows result in similar pilot viewing angles. Related design and functionality allows 767 pilots to obtain a common type rating to operate the 757 and share the same seniority roster with pilots of either aircraft. The original 767 flight deck uses six Rockwell Collins CRT screens to display Electronic flight instrument system (EFIS) and engine indication and crew alerting system (EICAS) information, allowing pilots to handle monitoring tasks previously performed by the flight engineer. The CRTs replace conventional electromechanical instruments found on earlier aircraft. An enhanced flight

title: "Boeing 767" content: 2012, Boeing and Rockwell Collins launched a further 787-based cockpit upgrade for the 767, featuring three landscape-format LCD screens that can display two windows each. The 767 is equipped with three redundant hydraulic systems for operation of control surfaces, landing gear, and utility actuation systems. Each engine powers a separate hydraulic system, and the third system uses electric pumps. A ram air turbine provides power for basic controls in the event of an emergency. An early form of fly-by-wire is employed for spoiler operation, utilizing electric signaling instead of traditional control cables. The fly-by-wire system reduces weight and allows independent

title: "Boeing 767" content: overhead bins and more lavatories per passenger than previous aircraft. The bins are wider to accommodate garment bags without folding, and strengthened for heavier carry-on items. A single, large galley is installed near the aft doors, allowing for more efficient meal service and simpler ground resupply. Passenger and service doors are an overhead plug type, which retract upwards, and commonly used doors can be equipped with an electric-assist system. In 2000, a 777-style interior, known as the Boeing Signature Interior, debuted on the 767-400ER. Subsequently, adopted for all new-build 767s, the Signature Interior features even larger overhead bins, indirect lighting,

title: "Boeing 767" content: conversions of passenger 767-200 and 767-300 models. When referring to different variants, Boeing and airlines often collapse the model number (767) and the variant designator (e.g. –200 or –300) into a truncated form (e.g. "762" or "763"). Subsequent to the capacity number, designations may append the range identifier. The International Civil Aviation Organization (ICAO) aircraft type designator system uses a similar numbering scheme, but adds a preceding manufacturer letter; all variants based on the 767-200 and 767-300 are classified under the codes "B762" and "B763"; the 767-400ER receives the designation of "B764". The 767-200 was the original model and entered

title: "Boeing 767" content: PW4000, General Electric CF6, or Rolls-Royce RB211 engines. the 767-300ER comes in three exit configurations: the baseline configuration has four main cabin doors and four over-wing window exits, the second configuration has six main cabin doors and two over-wing window exits; and the third configuration has six main cabin doors, as well as two smaller doors that are located behind the wings. Typical routes for the type include Los Angeles to Frankfurt. The combination of increased capacity and range offered by the 767-300ER has been particularly attractive to both new and existing 767 operators. It is the most successful version

title: "Boeing 767" content: deck, with a total cargo volume of . The freighter has a main deck cargo door and crew exit, while the lower deck features two port-side cargo doors and one starboard cargo door. A general market version with onboard freight-handling systems, refrigeration capability, and crew facilities was delivered to Asiana Airlines on August 23, 1996. , 767-300F deliveries stand at 144 with 68 unfilled orders. Airlines operated 222 examples of the freighter variant and freighter conversions in July 2018. In June 2008, All Nippon Airways took delivery of the first 767-300BCF (Boeing Converted Freighter), a modified passenger-to-freighter model. The conversion

title: "Boeing 767" content: developed, while a longer-range version, the 767-400ERX, was offered for sale in 2000 before it was cancelled a year later, leaving the 767-400ER as the sole version of the largest 767. Boeing dropped the 767-400ER and the -200ER from its pricing list in 2014. A total of 37 aircraft were delivered to the variant's two airline customers, Continental Airlines (now merged with United Airlines) and Delta Air Lines, with no unfilled orders. All 37 examples of the -400ER were in service in July 2018. One additional example was produced as a military testbed, and later sold as a VIP transport.

title: "Boeing 767" content: supplement its 767 fleet, but after Boeing cancelled the type's development in 2001, switched the order to the 777-200ER. The Northrop Grumman E-10 MC2A was to be a 767-400ER-based replacement for the USAF's 707-based E-3 Sentry AWACS, Northrop Grumman E-8 Joint STARS, and RC-135 SIGINT aircraft. The E-10 MC2A would have included an all-new AWACS system, with a powerful active electronically scanned array (AESA) that was also capable of jamming enemy aircraft or missiles. One 767-400ER aircraft was produced as a testbed for systems integration, but the program was terminated in January 2009 and the prototype was sold to Bahrain

title: "Boeing 767" content: as a VIP transport. In July 2018, 742 aircraft were in airline service: 73 -200s, 632 -300 and 37 -400 with 65 -300F on order; the largest operators are Delta Air Lines (77), FedEx (60; largest cargo operator), UPS Airlines (59), United Airlines (51), Japan Airlines (35), All Nippon Airways (34). The type's competitors included the Airbus A300 and A310. The largest customers are Delta Air Lines with 117 orders, FedEx Express (119), All Nippon Airways (96), American Airlines (88) and United Airlines (82). Delta and United are the only customers of all -200, -300 and -400 passenger variants. In

title: "Boeing 767" content: July 2015, FedEx placed a firm order for 50 Boeing 767 freighters with deliveries from 2018 to 2023. Boeing 767 orders and deliveries (cumulative, by year): , the Boeing 767 has been in 45 aviation occurrences, including 16 hull-loss accidents. Six fatal crashes, including three hijackings, have resulted in a total of 851 occupant fatalities. The 767's first incident was Air Canada Flight 143, a 767-200, on July 23, 1983. The airplane ran out of fuel in-flight and had to glide with both engines out for almost to an emergency landing at Gimli, Manitoba, Canada. The pilots used the aircraft's

title: "Boeing 767" content: ram air turbine to power the hydraulic systems for aerodynamic control. There were no fatalities and only minor injuries. This aircraft was nicknamed "Gimli Glider" after its landing site. The aircraft, registered C-GAUN, continued flying for Air Canada until its retirement in January 2008. The airliner's first fatal crash, Lauda Air Flight 004, occurred near Bangkok on May 26, 1991, following the in-flight deployment of the left engine thrust reverser on a 767-300ER; none of the 223 aboard survived; as a result of this accident all 767 thrust reversers were deactivated until a redesign was implemented. Investigators determined that an

title: "Boeing 767" content: electronically controlled valve, common to late-model Boeing aircraft, was to blame. A new locking device was installed on all affected jetliners, including 767s. On October 31, 1999, EgyptAir Flight 990, a 767-300ER, crashed off Nantucket Island, Massachusetts, in international waters killing all 217 people on board. The US National Transportation Safety Board (NTSB) concluded "not determined", but determined the probable cause to be due to a deliberate action by the first officer; Egypt disputed this conclusion. On April 15, 2002, Air China Flight 129, a 767-200ER, crashed into a hill amid inclement weather while trying to land at Gimhae International

title: "Boeing 767" content: Airport in Busan, South Korea. The crash resulted in the death of 129 of the 166 people on board, and the cause was attributed to pilot error. The 767 has been involved in six hijackings, three resulting in loss of life, for a combined total of 282 occupant fatalities. On November 23, 1996, Ethiopian Airlines Flight 961, a 767-200ER, was hijacked and crash-landed in the Indian Ocean near the Comoros Islands after running out of fuel, killing 125 out of the 175 persons on board; survivors have been rare among instances of land-based aircraft ditching on water. Two 767s were

title: "Boeing 767" content: backup system was inoperative due to an accidentally deactivated circuit breaker. In January 2014, the US Federal Aviation Administration issued a directive that ordered inspections of the elevators on more than 400 767s beginning in March 2014; the focus is on fasteners and other parts that can fail and cause the elevators to jam. The issue was first identified in 2000 and has been the subject of several Boeing service bulletins. The inspections and repairs are required to be completed within six years. The aircraft has also had multiple occurrences of "uncommanded escape slide inflation" during maintenance or operations, and

title: "Boeing 767" content: roll off the assembly line, older models have been retired and stored or scrapped. One complete aircraft, N102DAthe first 767-200 to operate for Delta Air Lines and the twelfth example built, is currently on display. It was withdrawn from use and stored at Hartsfield–Jackson Atlanta International Airport in 2006. The exhibition aircraft, named "The Spirit of Delta" by the employees who helped purchase it in 1982, underwent restoration at the Delta Flight Museum in Atlanta, Georgia. The restoration was completed in 2010. Boeing 767 The Boeing 767 is a mid- to large-size, mid- to long-range, wide-body twin-engine jet airliner built

Answer: British Airways

Answer: Delta Air Lines

Answer: BAW

Answer: British Airways plc

Answer: Delta Air Lines, Inc

Answer: DAL

Answer: Delta Airlines

Answer: Delta Air Line

Answer: Delta Air lines

Answer: @Delta

Answer: Delta Air Lines

Answer: Delta.com

Answer: DL

Answer: Delta Air Lines Incorporated

Answer: BA

Answer: Delta Air Lines, Inc.

Answer: Delta

Answer: Delta Air Lines Inc

Answer: British Airways

Answer: Delta (airline)

Answer: Delta Air Lines Inc.


Question: In which year was this building published?

Instruction: Obtain documents that correspond to the inquiry alongside the provided image:

title: "Strapless dress" content: strapless dresses were made in stretchy, elastic fabrics which did not require boning or interior structure. In 2012, the strapless dress was described as the most widely requested style for Western wedding dresses. Vera Wang is sometimes credited with introducing this style of bridal dress in the first decade of the 21st century, although strapless dresses were an increasingly valid option from the 1990s onwards with the growing popularity of formal civil weddings from the 1990s. However, for religious weddings, strapless and shoulder-baring styles are potentially controversial, and despite the popularity of the strapless wedding dress it is considered by

Answer: 1989

Answer: 1990

Answer: 1989

Answer: 1988


Question: What is the highest observed lifespan of this animal?

Instruction: Retrieve documents that provide an answer to the question alongside the image:

title: "Sea otter" content: and Japan. Population estimates made between 2004 and 2007 give a worldwide total of approximately 107,000 sea otters. Currently, the most stable and secure part of the sea otter's range is Russia. Before the 19th century, around 20,000 to 25,000 sea otters lived near the Kuril Islands, with more near Kamchatka and the Commander Islands. After the years of the Great Hunt, the population in these areas, currently part of Russia, was only 750. By 2004, sea otters had repopulated all of their former habitat in these areas, with an estimated total population of about 27,000. Of these, about 19,000

title: "Sea otter" content: relatively flat from 2005 to 2014 at just under 3,000. There was some contraction from the northern (now Pigeon Point) and southern limits of the sea otter's range during the end of this period, circumstantially related to an increase in lethal shark bites, raising concerns that the population had reached a plateau. However, the population increased markedly from 2015 to 2016, with the United States Geological Survey (USGS) California sea otter survey 3-year average reaching 3,272 in 2016, the first time it exceeded the threshold for delisting from the Endangered Species Act (ESA). If populations continued to grow and ESA

Answer: 27


Question: What is the maximum capacity of this aircraft?

Instruction: Using the provided image, obtain documents that address the subsequent question:

title: "De Havilland Canada DHC-6 Twin Otter" content: De Havilland Canada DHC-6 Twin Otter The de Havilland Canada DHC-6 Twin Otter, currently marketed as the Viking Air DHC-6 Twin Otter, is a Canadian 19-passenger STOL (Short Takeoff and Landing) utility aircraft developed by de Havilland Canada and currently produced by Viking Air. The aircraft's fixed tricycle undercarriage, STOL capabilities, twin turboprop engines and high rate of climb have made it a successful commuter passenger airliner as well as a cargo and medical evacuation aircraft. In addition, the Twin Otter has been popular with commercial skydiving operations, and is used by the United States Army Parachute Team and the

title: "De Havilland Canada DHC-6 Twin Otter" content: United States Air Force's 98th Flying Training Squadron. Development of the aircraft began in 1964, with the first flight on May 20, 1965. A twin-engine replacement for the single-engine DHC-3 Otter retaining DHC's renowned STOL qualities, its design features included double-slotted trailing-edge flaps and ailerons that work in unison with the flaps to boost STOL performance. The availability of the Pratt & Whitney Canada PT6A-20 turboprop in the early 1960s made the concept of a twin more feasible. To bush operators, the improved reliability of turboprop power and the improved performance of a twin-engine configuration made it an immediately popular

title: "De Havilland Canada DHC-6 Twin Otter" content: alternative to the piston-powered Otter which had been flying since 1951. The first six aircraft produced were designated Series 1, indicating that they were prototype aircraft. The initial production run consisted of Series 100 aircraft, serial numbers seven to 115 inclusive. In 1968, Series 200 production began with serial number 116. Changes made at the beginning of Series 200 production included improving the STOL performance, adding a longer nose that was equipped with a larger baggage compartment (except for aircraft fitted with floats), and fitting a larger door to the rear baggage compartment. All Series 1, 100, and 200 aircraft

title: "De Havilland Canada DHC-6 Twin Otter" content: and their variants (110, 210) were fitted with the 550-shaft-horsepower PT6A-20 engines. In 1969, the Series 300 was introduced, beginning with serial number 231. Both aircraft performance and payload were improved by fitting more powerful PT6A-27 engines. This was a engine that was flat-rated to for use in the Series 300 Twin Otter. The Series 300 proved to be the most successful variant by far, with 614 Series 300 aircraft and their subvariants (Series 310 for United Kingdom operators, Series 320 for Australian operators, etc.) sold before production in Toronto by de Havilland Canada ended in 1988. In 1976, a

title: "De Havilland Canada DHC-6 Twin Otter" content: designed for Twin Otter operations. According to the February 1976 edition of the "Official Airline Guide", Houston Metro operated 22 round-trip flights every weekday at this time between Clear Lake City (CLC) and Houston Intercontinental Airport (IAH, now Houston George Bush Intercontinental Airport) in a scheduled passenger airline shuttle operation. Houston Metro had agreements in place for connecting passenger feed services with Continental Airlines and Eastern Airlines at Houston Intercontinental, with this major airport having a dedicated STOL landing area at the time specifically for Twin Otter flight operations. The Clear Lake City STOLport is no longer in existence. The

title: "De Havilland Canada DHC-6 Twin Otter" content: Walt Disney World resort in Florida was also served with scheduled airline flights operated with Twin Otter aircraft. The Walt Disney World Airport (DWS), also known as the Lake Buena Vista STOLport, was a private airfield constructed by the Walt Disney Company with Twin Otter operations in mind. In the early 1970s, Shawnee Airlines operated scheduled Twin Otter flights between the Disney resort and nearby Orlando Jetport (MCO, now Orlando International Airport), as well as to Tampa International Airport (TPA). This service by Shawnee Airlines is mentioned in the "Air Commuter Section" of the Sept, 6, 1972 Eastern Air Lines

title: "De Havilland Canada DHC-6 Twin Otter" content: continued to operate the Twin Otter, as well. Larger scheduled passenger airlines based in the United States, Canada, Mexico, the Caribbean and Australia, particularly jetliner operators, also flew Twin Otters, with the aircraft providing connecting feeder service for these airlines. Jet aircraft operators which also flew the Twin Otter included Aeronaves de Mexico, Air BC, Alaska Airlines, ALM Antillean Airlines, Ansett Airlines, Cayman Airways, Frontier Airlines (1950-1986), LIAT, Norcanair, Nordair, Ozark Air Lines, Pacific Western Airlines, Quebecair, South Pacific Island Airways, Time Air, Transair (Canada), Trans Australian Airlines (TAA), Wardair Canada and Wien Air Alaska. In many cases, the excellent

title: "De Havilland Canada DHC-6 Twin Otter" content: the third winter evacuation flight to Amundsen–Scott South Pole Station to remove two people for medical reasons. The Argentine Air Force has used the Twin Otter in Antarctica since the 1970s, with at least one of them deployed year-round at Marambio Base. The Chilean Air Force has operated the type since 1980, usually having an example based at Presidente Frei Antarctic base of the South Shetland islands. As of August 2006, a total of 584 Twin Otter aircraft (all variants) remain in service worldwide. Major operators include: Libyan Arab Airlines (16), Maldivian Air Taxi (22), Trans Maldivian Airways (23), Kenn

title: "De Havilland Canada DHC-6 Twin Otter" content: a replacement for the single-engine de Havilland Canada DHC-3 Otter but also with other civil and military customers, with over 890 aircraft built. Many commuter airlines in the U.S. got their start by flying the Twin Otter in scheduled passenger operations. Kaymac Inc., a government civilian contractor based in Nevada, operates 18. De Havilland Canada DHC-6 Twin Otter The de Havilland Canada DHC-6 Twin Otter, currently marketed as the Viking Air DHC-6 Twin Otter, is a Canadian 19-passenger STOL (Short Takeoff and Landing) utility aircraft developed by de Havilland Canada and currently produced by Viking Air. The aircraft's fixed tricycle

Answer: 19


Question: Who are the structure engineers of this bridge?

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title: "Blackfriars Bridge" content: to a design by Joseph Cubitt. Cubitt also designed the adjacent rail bridge (now demolished) and it was a condition that the spans and piers of the two bridges be aligned. Like its predecessor it is owned and maintained by the Bridge House Estates, a charitable trust overseen by the City of London Corporation. Like London Bridge the full length and its southern end is within the City's borders and not in the adjoining borough of Southwark. Due to the volume of traffic over the bridge, it was widened between 1907–10, from to its present . The bridge became internationally

Answer: Joseph Cubitt

Answer: Joseph Cubitt


Question: the aircraft in the image participated in which conflict?

Instruction: Using the provided image, obtain documents that address the subsequent question:

title: "Supermarine Spitfire" content: Supermarine Spitfire The Supermarine Spitfire is a British single-seat fighter aircraft used by the Royal Air Force and other Allied countries before, during, and after World War II. Many variants of the Spitfire were built, using several wing configurations, and it was produced in greater numbers than any other British aircraft. It was also the only British fighter produced continuously throughout the war. The Spitfire continues to be popular among enthusiasts; nearly 60 remain airworthy, and many more are static exhibits in aviation museums throughout the world. The Spitfire was designed as a short-range, high-performance interceptor aircraft by R. J.

title: "Supermarine Spitfire" content: Trowbridge's Keevil aerodrome; and Reading's Henley and Aldermaston aerodromes. An experimental factory at Newbury was the subject of a Luftwaffe daylight raid, but the bombs missed their target and hit a nearby school. Completed Spitfires were delivered to the airfields on large Commer "Queen Mary" low-loader articulated lorries (trucks), there to be fully assembled, tested, then passed on to the RAF. All production aircraft were flight tested before delivery. During the Second World War, Jeffrey Quill was Vickers Supermarine's chief test pilot, in charge of flight testing all aircraft types built by Vickers Supermarine. He oversaw a group of 10

title: "Supermarine Spitfire" content: without a deterioration somewhere else. When the last Spitfire rolled out in February 1948, a total of 20,351 examples of all variants had been built, including two-seat trainers, with some Spitfires remaining in service well into the 1950s. The Spitfire was the only British fighter aircraft to be in continuous production before, during, and after the Second World War. In the mid-1930s, aviation design teams worldwide began developing a new generation fighter aircraft. The French Dewoitine D.520 and the German Messerschmitt Bf 109, for example, were designed to take advantage of new techniques of monocoque construction, and the availability of

title: "Supermarine Spitfire" content: to play increasingly diverse roles throughout the Second World War and beyond, often in air forces other than the RAF. For example, the Spitfire became the first high-speed photo-reconnaissance aircraft to be operated by the RAF. Sometimes unarmed, they flew at high, medium, and low altitudes, often ranging far into enemy territory to closely observe the Axis powers and provide an almost continual flow of valuable intelligence information throughout the war. In 1941 and 1942, PRU Spitfires provided the first photographs of the "Freya" and "Würzburg" radar systems, and in 1943, helped confirm that the Germans were building the V1

title: "Supermarine Spitfire" content: the Japanese Naval Air Force, suffering heavy losses largely due to the type's limited fuel capacity. Spitfire MKVIIIs took part in the last battle of World War II involving the Western allies in Burma, in the ground attack role, helping defeat a Japanese break-out attempt. During the Second World War, Spitfires were used by the United States Army Air Forces in the 4th Fighter Group until they were replaced by Republic P-47 Thunderbolts in March 1943. Several Spitfires were captured by the Germans and flown by units which tested, evaluated, and sometimes clandestinely operated enemy aircraft. Beginning in late 1943,

title: "Supermarine Spitfire" content: too late to see service in World War II. The first Rolls-Royce Griffon-engined Mk XII flew in August 1942, and first flew operationally with 41 Squadron in April 1943. This mark could nudge in level flight and climb to an altitude of in under nine minutes. As American fighters took over the long-range escorting of United States Army Air Forces (USAAF) daylight bombing raids, the Griffon-engined Spitfires progressively took up the tactical air superiority role, and played a major role in intercepting V-1 flying bombs, while the Merlin-engined variants (mainly the Mk IX and the Packard-engined Mk XVI) were adapted

title: "Supermarine Spitfire" content: The Spitfire continues to be highly popular at airshows, on airfields and in museums worldwide, and holds an important place in the memories of many people, especially the few still living who flew the Spitfire in combat. Numerous films and documentaries featuring the Spitfire are still being produced, some of which are listed in this section. The Spitfire's performance improved greatly as WWII progressed, for more information see . Supermarine Spitfire The Supermarine Spitfire is a British single-seat fighter aircraft used by the Royal Air Force and other Allied countries before, during, and after World War II. Many variants of

Answer: World War II

Answer: WW2

Answer: WW II

Answer: Second World War

Answer: World War II

Answer: WW 2

Answer: the Second World War

Answer: World War 2

Answer: II World War

Answer: 2nd World War

Answer: World War Two

Answer: WWII


Question: Who is the owner of this building?

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title: "Dresden Hauptbahnhof" content: and Dresden, as well as problems with the tilting systems, Deutsche Bahn discontinued the operation of the trainsets from the summer of 2003. Instead services were operated with Intercity trains until the end of long-distance services in 2006. A suitcase bomb was discovered in the station by an explosive-detection dog on 6 June 2003. After the evacuation of the entire building, the police destroyed the suitcase bomb. The bomb consisted of a standard wheeled suitcase which contained an alarm clock, a pressure cooker, explosives and stones as well as an ignition device with fuse. According to experts, this bomb was

title: "Dresden Hauptbahnhof" content: capable of exploding. The first restoration work took place in the 1990s. The bridges over federal highway 170 were renovated and the eastern building was given a new facade on the street side and new entrance steps. A draft plan by Gerkan, Marg and Partners for the modernisation of the station in the mid-1990s envisaged part of the central hall remodelled as a market as well as the building of an office and hotel tower. This design was not realised. At the end of December 2000, the Board of Deutsche Bahn, let a contract for modernisation work. The planned construction

title: "Dresden Hauptbahnhof" content: costs amounted to approximately DM 100 million, which was funded from the federal government’s remediation funds, Deutsche Bahn’s own funds and a grant from the state of Saxony (DM 13 million). The completion of construction works was scheduled for the spring of 2003. The extensive redevelopment had already commenced in 2000 with the commissioning of the Leipzig remote electronic control centre. The additional redevelopment included the renovation of the entrance building and the train shed roof, track work of the north and south hall and changes to the track and signaling systems. To ensure uninterrupted movement of trains, the track

title: "Dresden Hauptbahnhof" content: of the lobby on the evening of 10 November 2006. It was carried out in 2006 to coincide with the celebration of the 800-year anniversary of the city. The opening meant the end of a significant obstacle for tourism, but the renovations have not yet finished even in 2014. After 20 months of construction, carried out as part of the federal economic stimulus package, the refurbishment of the station’s energy systems were completed in June 2011. This construction work included the renovation of the royal pavilion. Since the summer of 2011, Deutsche Bahn has been developing a future retail space

title: "Dresden Hauptbahnhof" content: Deutsche Bahn said that the platforms of the central hall would be replaced by 2019 and they would also be slightly raised. The "Förderverein Dresdner Hauptbahnhof e. V." (Friends of Dresden Hauptbahnhof) supported the renovation and enabled the recovery of some details about the required conservation measures. So broken decorative elements on a sandstone facade of the clock tower were returned to their correct places, windows were equipped with arches and architraves and the crowning group statue of "Saxonia" with personifications of science and technology have been restored. The station building is oriented in a northwest–southeast direction and is divided

title: "Dresden Hauptbahnhof" content: Originally it served to receive state guests of the Kingdom of Saxony. After the end of the monarchy in 1918, it contained a ticket office before it was again reserved for functions and receiving dignitaries during the Third Reich. From 1950, the royal pavilion contained the "Kino im Hauptbahnhof" (cinema in the station), which had more than 170 places. On 31 December 2000, Deutsche Bahn dismissed the operator and the Pavilion has since been unused. During a renovation to make it energy-efficient in 2010, the facade of the Pavilion was repaired and new windows and a new roof were installed.

title: "Dresden Hauptbahnhof" content: a total of 67 skylights. The roof area is about 33,000 square metres (of which 29,000 square metres is composed of glass fibre membrane), which covers a surface area about 24,500 square metres. The architects who won the competition emphasised their entry’s relatively easy installation, low weight and low maintenance costs (self-cleaning). According to the Deutsche Bahn specifications, cooling is not required due to the "tent construction" of the roof even in bright sunlight. The restoration was carried out between February 2001 and July 2006 with trains running through the station. 800 tons of material were installed in the two

title: "Dresden Hauptbahnhof" content: the roof, there is now a round cushion, 15 metres in diameter and made of ETFE foil. Its height can be adjusted and it serves mainly to regulate the ventilation. In the upper floor of the station there has been a "DB Lounge" for first class passengers and frequent travellers since September 2006. In the entrance building there are shops for travel needs. It includes leased retail space of 3,969 square metres in addition to the space below the elevated tracks of the south hall; this provision is low compared to other metropolitan stations. As an important transport hub in

title: "Dresden Hauptbahnhof" content: is no longer served by long-distance traffic. Journey times are as follows from Dresden to: In the plans of the European Union, the station is the starting point of "Pan-European Corridors III and IV" to Kiev and southeast Europe. The station is served by the following services (incomplete list): Each day the station is used by around 60,000 passengers, 381 trains (including 50 long-distance services), including up to ten S-Bahn services each hour. In passenger traffic it is served by services operated by DB Fernverkehr (long-distance), DB Regio (Südost), Städtebahn Sachsen and Vogtlandbahn (under the brand name of "Trilex"). In

title: "Dresden Hauptbahnhof" content: addition, about 200 freight trains operated by different railway companies pass the station daily. The most common direct destination outside the area of the Dresden S-Bahn is Leipzig with up to 32 services daily. The other most frequent long-distance destinations are Berlin, Hamburg, Frankfurt, Wiesbaden, Prague and Budapest. The Saxon-Franconian trunk line via Chemnitz and the Vogtland to Nuremberg has been discontinued in recent years, despite the growth of long-distance traffic and is now only operated by DB Regio as far as Hof. The number of direct connections to the station mean that it has national significance as an interchange.

title: "Dresden Hauptbahnhof" content: It is one of the 21 stations of the highest category as classified by DB Station&Service. The station is the main inner-city hub for national passenger services. From the outset, it was the centre of the tram network of the Dresdner Verkehrsbetriebe (Dresden Transport) or its predecessor organisations. Today, along with Postplatz, Albertplatz and Pirnaischer Platz, it is one of the four major tram hubs of the city. The first bus service was operated in Dresden from April 1914 via the station as the overland buses of the "Kraftverkehrsgesellschaft Freistaat Sachsen" (KVG) from 1919 until the end of World War

Answer: Deutsche Bahn

Answer: Deutsche Bahn AG

Answer: DB

Answer: Deutsche Bahn Aktiengesellschaft

Answer: DB AG

Answer: DBAG

Answer: Deutsche Bahn

Answer: German national railway company


Question: Where is this bird native to?

Instruction: Using the provided image, obtain documents that address the subsequent question:

title: "Australian wood duck" content: Australian wood duck The Australian wood duck, maned duck or maned goose ("Chenonetta jubata") is a dabbling duck found throughout much of Australia. It is the only living species in the genus Chenonetta. Traditionally placed in the subfamily Anatinae (dabbling ducks), it might belong to the subfamily Tadorninae (shelducks); the ringed teal may be its closest living relative. The Australian wood duck was first described by the English ornithologist John Latham in 1801 under the binomial name "Anas jubata". The flightless New Zealand species "Chenonetta finschi" (Finsch's duck) which was formerly believed to constitute a monotypic genus ("Euryanas") has been

title: "Australian wood duck" content: determined to belong to "Chenonetta". It became extinct before scientists could properly survey the New Zealand avifauna, but possibly as late as 1870 (based on a report of a flightless goose caught in Opotiki.) "Chenonetta": "khēn", χηνος "khēnos" “goose”; νηττα "nētta" “duck”.<br> "jubata": “maned, crested”, from "iuba" “mane, crest” This 45–51 cm duck looks like a small goose, and feeds mostly by grazing in flocks. The male is grey with a dark brown head and mottled breast. The female has white stripes above and below the eye and mottled underparts. Both sexes have grey wings with black primaries and a

title: "Australian wood duck" content: white speculum. Juveniles are similar to adult females, but lighter and with a more streaky breast. The Australian wood duck is widespread in Australia, including Tasmania. The Australian wood duck is found in grasslands, open woodlands, wetlands, flooded pastures and along the coast in inlets and bays. It is also common on farmland with dams, as well as around rice fields, sewage ponds and in urban parks. It will often be found around deeper lakes that may be unsuitable for other waterbirds' foraging, as it prefers to forage on land. The most common call is a loud, rising croaky "gnow"

title: "Australian wood duck" content: sound by the females, and the male call is the same except smoother, shorter and higher than the females. Staccato chattering is also present in flocks. Australian wood duck is widespread in its range. This species has benefited from agriculture developments, with creation of dams and pools. It is classified as a game bird, and killed by licensed hunters. This species is not threatened, and numbers are stable. Australian wood duck nests in cavities in trees or in nest-boxes above or near water. Nests are made with a pile of down. This duck nests in a tree cavity laying 9–11

title: "Australian wood duck" content: cream-white eggs, similar to the Mandarin ducks. The female incubates them while the male stands guard. Once the ducklings are ready to leave the nest, the female flies to the ground and the duckling will leap to the ground and follow their parents. Like Mandarin drakes, the males also secure their ducklings closely along with the females. The Australian wood duck eats grasses, grains, clover and other herbs, and occasionally, insects. It is rarely seen on open water, preferring to forage by dabbling in shallow water, or in grasslands and crops. The Australian wood duck can be distinguished from pygmy

title: "Australian wood duck" content: geese, Nettapus spp, which are smaller, have bold white face markings and are usually seen on water. Whistling ducks, Dendrocygna spp, have longer legs and necks, larger more duck-like bills and tend to walk more upright. When flying, the Australian wood duck is the only duck with white secondary feathers and dark wingtips. Marchant, S. and Higgins, P.J. (eds). 1993. Handbook of Australian, New Zealand and Antarctic Birds. Vol 1B (Ratites to Ducks), Oxford University Press, Sydney. Simpson, K and Day, N. (1999). Field guide to the birds of Australia, 6th Edition. Penguin Books, Australia. Handbook of the Birds of

title: "Australian wood duck" content: the World vol 1 by Josep del Hoyo-Andrew Elliot-Jordi Sargatal - Lynx Edicions - Guide De Canards, des oies et des cygnes – de Steve Madge - Delachaux et Niestlé - Australian wood duck The Australian wood duck, maned duck or maned goose ("Chenonetta jubata") is a dabbling duck found throughout much of Australia. It is the only living species in the genus Chenonetta. Traditionally placed in the subfamily Anatinae (dabbling ducks), it might belong to the subfamily Tadorninae (shelducks); the ringed teal may be its closest living relative. The Australian wood duck was first described by the English ornithologist

Answer: Australia

Answer: au

Answer: Australia

Answer: Aussieland

Answer: AU

Answer: Commonwealth of Australia

Answer: Oz

Answer: Straya

Answer: AUS


Question: What is the location of this bridge?

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title: "Blackfriars Bridge" content: Blackfriars Bridge Blackfriars Bridge is a road and foot traffic bridge over the River Thames in London, between Waterloo Bridge and Blackfriars Railway Bridge, carrying the A201 road. The north end is near the Inns of Court and Temple Church, along with Blackfriars station. The south end is near the Tate Modern art gallery and the Oxo Tower. The first fixed crossing at Blackfriars was a long toll bridge designed in an Italianate style by Robert Mylne and constructed with nine semi-elliptical arches of Portland stone. Beating designs by John Gwynn and George Dance, it took nine years to build,

title: "Blackfriars Bridge" content: opening to the public in 1769. It was the third bridge across the Thames in the then built-up area of London, supplementing the ancient London Bridge, which dated from several centuries earlier, and Westminster Bridge. It was originally named "William Pitt Bridge" (after the Prime Minister William Pitt the Elder) as a dedication, but its informal name relating to the precinct within the City named after the Blackfriars Monastery, a Dominican priory which once stood nearby, was generally adopted. It was later made toll free. The City of London Corporation was responsible for promoting it and the location between the

title: "Blackfriars Bridge" content: St George's Circus between Westminster Bridge Road, Borough Road and the later named Blackfriars Road which crossed the largely open parish of Christchurch Surrey. The continuation to the south at the major junction at Elephant and Castle is therefore named London Road. Although it was built of Portland stone the workmanship was very faulty. Between 1833 and 1840 extensive repairs were necessary, and a good deal of patching-up was done, until at last it was decided to build a new bridge on the same site and this coincided with the creation of the Thames Embankment's junction with the new Queen

title: "Blackfriars Bridge" content: to a design by Joseph Cubitt. Cubitt also designed the adjacent rail bridge (now demolished) and it was a condition that the spans and piers of the two bridges be aligned. Like its predecessor it is owned and maintained by the Bridge House Estates, a charitable trust overseen by the City of London Corporation. Like London Bridge the full length and its southern end is within the City's borders and not in the adjoining borough of Southwark. Due to the volume of traffic over the bridge, it was widened between 1907–10, from to its present . The bridge became internationally

title: "Blackfriars Bridge" content: "Blackfriars Bridge" was named as the home of an unknown order of monks who held the key to an angelic prison. The bridge is also featured in the lyrics of the songs "The Resurrectionist" by the Pet Shop Boys, and "Cold Bread" by Johnny Flynn & The Sussex Wit. In Louis A. Meyer's "Bloody Jack: Being An Account of the Curious Adventures of Mary "Jacky" Faber, Ship's Boy", Jacky is introduced as an orphan in early 19th-century London who lives with her orphan gang under Blackfriars Bridge. The bridge is mentioned in Harold Pinter's play "The Homecoming" when the character

Answer: London

Answer: Londongrad

Answer: London

Answer: London, England

Answer: London, UK

Answer: London, United Kingdom

Answer: London U.K.

Answer: London UK


Question: Who is the manufacturer of this aircraft?

Instruction: Obtain documents that correspond to the inquiry alongside the provided image:

title: "Boeing 767" content: Boeing 767 The Boeing 767 is a mid- to large-size, mid- to long-range, wide-body twin-engine jet airliner built by Boeing Commercial Airplanes. It was Boeing's first wide-body twinjet and its first airliner with a two-crew glass cockpit. The aircraft has two turbofan engines, a conventional tail, and, for reduced aerodynamic drag, a supercritical wing design. Designed as a smaller wide-body airliner than earlier aircraft such as the 747, the 767 has a seating capacity for 181 to 375 people, and a design range of , depending on variant. Development of the 767 occurred in tandem with a narrow-body twinjet, the

title: "Boeing 767" content: 4 more 767-300Fs, increasing their total order to 63. Deliveries are scheduled from 2017 through 2022. With its successor, the Boeing New Midsize Airplane, planned for at least a 2025 introduction, and the 787 being much larger, Boeing could restart a passenger 767-300ER production to bridge the gap. A demand for 50 to 60 aircraft could have to be satisfied. Having to replace its 40 767s, United Airlines requested a price quote for other widebodies. In November 2017, Boeing CEO Dennis Muilenburg cited interest beyond military and freighter uses. Boeing Commercial Airplanes VP of marketing Randy Tinseth stated in early

Answer: Boeing Commercial Airplanes

Answer: Boeing Commercial Airplanes

Answer: Boeing Commercial Airplanes, BCA

Answer: BCA


Question: Which city or region does this garden locate in?

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title: "Acharya Jagadish Chandra Bose Indian Botanic Garden" content: Acharya Jagadish Chandra Bose Indian Botanic Garden The Acharya Jagadish Chandra Bose Indian Botanic Garden previously known as Indian Botanic Garden is situated in Shibpur, Howrah near Kolkata. They are commonly known as the Calcutta Botanical Garden, and previously as the Royal Botanic Garden, Calcutta. The gardens exhibit a wide variety of rare plants and a total collection of over 12,000 specimens spread over 109 hectares. It is under Botanical Survey of India (BSI) of Ministry of Environment and Forests, Government of India. The gardens were founded in 1786 by Colonel Robert Kyd, an army officer of the British East

title: "Acharya Jagadish Chandra Bose Indian Botanic Garden" content: Indian Fox (Vulpes bengalensis). A large numbers of varieties snakes also found in the garden. Acharya Jagadish Chandra Bose Indian Botanic Garden The Acharya Jagadish Chandra Bose Indian Botanic Garden previously known as Indian Botanic Garden is situated in Shibpur, Howrah near Kolkata. They are commonly known as the Calcutta Botanical Garden, and previously as the Royal Botanic Garden, Calcutta. The gardens exhibit a wide variety of rare plants and a total collection of over 12,000 specimens spread over 109 hectares. It is under Botanical Survey of India (BSI) of Ministry of Environment and Forests, Government of India. The gardens

Answer: Howrah

Answer: Haora

Answer: Haura

Answer: Howrah


Question: What is this building named after?

Instruction: With the provided image, gather documents that offer a solution to the question:

title: "Regensburg Cathedral" content: Regensburg Cathedral The Regensburg Cathedral (), also known as St. Peter's Cathedral, is an example of important Gothic architecture within the German state of Bavaria. It is a landmark for the city of Regensburg, Germany, and the seat of the Catholic Diocese of Regensburg. The original church called Niedermünster, which was built west of where the current cathedral stands, was built around the year 700. Where it was positioned was some distance away from the Porta Praetoria which was a northern gate of Regensburg's old legionary fortress called "Castra Regina". Although it was a tomb for Erhard of Regensburg, it

title: "Regensburg Cathedral" content: piers. Additionally there was a statue of a seated figure representing "St. Peter" within the main choir, but it is not there today. These sandstone sculptures were created by a man under the title of "Erminoldmeister," and during the 13th century he was a significant contributor to monumental sculptures in Germany. The two mentioned statues completed in 1280 that still exist within the cathedral today, one representing Mary(Mary, Mother of Jesus) and the other representing the angel Gabriel, juxtapose one another on their pillars. Mary's right hand is slightly raised toward the angel in greeting. In her left hand she

title: "Regensburg Cathedral" content: holds a book, into which she is pointing with her index finger. In addition to these statues, on the eastern pillars at the crossing are stone figures of Saint Peter and Saint Paul, which were installed in 1320 and 1360-1370 respectively. On the exterior there is a "Judensau" (Jews' sow) in the form of a sow and three Jews hanging onto its teats. The "Judensau" faces in the direction of the former Jewish quarter at the "Neupfarrplatz". In 2005 there was a controversy about the posting of an informational sign. The "All Saints' Chapel" in the cathedral cloister was built

title: "Regensburg Cathedral" content: place of important bishops, including Johann Michael von Sailer (1829-1832, memorial built by Konrad Eberhard in the south chancel), Georg Michael Wittmann (1832-1833, memorial also by Konrad Eberhard in the north chancel), and Archbishop Michael Buchberger (1927-1961, likewise in the north chancel). In the western part of the central nave stands a bronze memorial for the Prince-Bishop Cardinal Philipp Wilhelm (d. 1598), the brother of Duke Maximilian I of Bavaria. Regensburg Cathedral The Regensburg Cathedral (), also known as St. Peter's Cathedral, is an example of important Gothic architecture within the German state of Bavaria. It is a landmark for

Answer: Peter

Answer: Simon Peter

Answer: Saint Peter the Apostle

Answer: Simon

Answer: Pope Peter

Answer: Peter

Answer: Saint Peter

Answer: Shimon

Answer: Petrus

Answer: Peter the Apostle

Answer: Simeon


Question: In which year did this aircraft come into service?

Instruction: Retrieve documents that provide an answer to the question alongside the image:

title: "De Havilland Canada DHC-6 Twin Otter" content: alternative to the piston-powered Otter which had been flying since 1951. The first six aircraft produced were designated Series 1, indicating that they were prototype aircraft. The initial production run consisted of Series 100 aircraft, serial numbers seven to 115 inclusive. In 1968, Series 200 production began with serial number 116. Changes made at the beginning of Series 200 production included improving the STOL performance, adding a longer nose that was equipped with a larger baggage compartment (except for aircraft fitted with floats), and fitting a larger door to the rear baggage compartment. All Series 1, 100, and 200 aircraft

title: "De Havilland Canada DHC-6 Twin Otter" content: and their variants (110, 210) were fitted with the 550-shaft-horsepower PT6A-20 engines. In 1969, the Series 300 was introduced, beginning with serial number 231. Both aircraft performance and payload were improved by fitting more powerful PT6A-27 engines. This was a engine that was flat-rated to for use in the Series 300 Twin Otter. The Series 300 proved to be the most successful variant by far, with 614 Series 300 aircraft and their subvariants (Series 310 for United Kingdom operators, Series 320 for Australian operators, etc.) sold before production in Toronto by de Havilland Canada ended in 1988. In 1976, a

Answer: 1968

Answer: 1967

Answer: 1968

Answer: 1969


Question: which mountain range is this lake belong to?

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title: Titisee content: Titisee The Titisee is a lake in the southern Black Forest in Baden-Württemberg. It covers an area of and is an average of deep. It owes its formation to the Feldberg glacier, the moraines of which were formed in the Pleistocene epoch and nowadays form the shores of the lake. The lake's outflow, at above sea level, is the River Gutach, which merges with the Haslach stream below Kappel to form the Wutach). The waters of the Titisee thus drain eventually into the Upper Rhine between Tiengen and Waldshut. On the north shore lies the spa town of the same

title: Titisee content: name, today a part of the municipality of Titisee-Neustadt. There are various theories about the origin of the unusual name "Titisee": In 1840, two sarcophagi made of worked tuff were found below a knoll by the outflow of the Gutach from the Titisee. In 2011, the archaeologist, Andreas Haasis-Berner, published an article stating that they had to date to the period between 700 and 900. Hitherto, it had been thought that the High Black Forest had been unsettled during the first millennium. The first records of the lake date to 1050 and the abbey of Allerheiligen in Schaffhausen, where the

title: Titisee content: seen. The shores of the Titisee are home to two rare types of quillworts, the spring quillwort and the lake quillwort. Titisee The Titisee is a lake in the southern Black Forest in Baden-Württemberg. It covers an area of and is an average of deep. It owes its formation to the Feldberg glacier, the moraines of which were formed in the Pleistocene epoch and nowadays form the shores of the lake. The lake's outflow, at above sea level, is the River Gutach, which merges with the Haslach stream below Kappel to form the Wutach). The waters of the Titisee thus

Answer: Black Forest

Answer: Schwarzwald

Answer: Black Forest


Question: What country does this place belong to?

Instruction: Using the given image, access documents that provide insights into the following question:

title: Amanohashidate content: Amanohashidate Amanohashidate (天橋立) is one of Japan's three scenic views. The sandbar is located in Miyazu Bay in northern Kyoto Prefecture. It forms part of the Tango-Amanohashidate-Ōeyama Quasi-National Park. A thin strip of land connects two opposing sides of Miyazu Bay. This sand bar is 3.3 km long and covered with about 7,000 pine trees. It can be viewed from mountains on either side of the bay or it can be traversed on foot. Near the northern end is Kono Shrine, Shinto Shrine and the southern end is Chion-ji, a Buddhist temple. On the bar is the Isoshimizu fresh water

title: Amanohashidate content: well cherished since the Heian period, which was selected as one of 100 best springs and rivers in Japan by the Environmental Agency in 1985. Amanohashidate Station on the Miyazu Line railway, about two hours from Kyoto Station or Osaka Station, is located within walking distance from the southern end of Amanohashidate. Amanohashidate Amanohashidate (天橋立) is one of Japan's three scenic views. The sandbar is located in Miyazu Bay in northern Kyoto Prefecture. It forms part of the Tango-Amanohashidate-Ōeyama Quasi-National Park. A thin strip of land connects two opposing sides of Miyazu Bay. This sand bar is 3.3 km long

Answer: Japan

Answer: Jap

Answer: State of Japan

Answer: JP

Answer: Nippon

Answer: jp

Answer: Japan

Answer: JAP

Answer: JA

Answer: Nihon-koku

Answer: Nihon

Answer: Ja

Answer: JPN

Answer: Nippon-koku

Answer: Land of the Rising Sun


Question: What is the maximum capacity of this aircraft?

Instruction: Using the provided image, obtain documents that address the subsequent question:

title: "De Havilland Canada DHC-6 Twin Otter" content: De Havilland Canada DHC-6 Twin Otter The de Havilland Canada DHC-6 Twin Otter, currently marketed as the Viking Air DHC-6 Twin Otter, is a Canadian 19-passenger STOL (Short Takeoff and Landing) utility aircraft developed by de Havilland Canada and currently produced by Viking Air. The aircraft's fixed tricycle undercarriage, STOL capabilities, twin turboprop engines and high rate of climb have made it a successful commuter passenger airliner as well as a cargo and medical evacuation aircraft. In addition, the Twin Otter has been popular with commercial skydiving operations, and is used by the United States Army Parachute Team and the

title: "De Havilland Canada DHC-6 Twin Otter" content: United States Air Force's 98th Flying Training Squadron. Development of the aircraft began in 1964, with the first flight on May 20, 1965. A twin-engine replacement for the single-engine DHC-3 Otter retaining DHC's renowned STOL qualities, its design features included double-slotted trailing-edge flaps and ailerons that work in unison with the flaps to boost STOL performance. The availability of the Pratt & Whitney Canada PT6A-20 turboprop in the early 1960s made the concept of a twin more feasible. To bush operators, the improved reliability of turboprop power and the improved performance of a twin-engine configuration made it an immediately popular

title: "De Havilland Canada DHC-6 Twin Otter" content: alternative to the piston-powered Otter which had been flying since 1951. The first six aircraft produced were designated Series 1, indicating that they were prototype aircraft. The initial production run consisted of Series 100 aircraft, serial numbers seven to 115 inclusive. In 1968, Series 200 production began with serial number 116. Changes made at the beginning of Series 200 production included improving the STOL performance, adding a longer nose that was equipped with a larger baggage compartment (except for aircraft fitted with floats), and fitting a larger door to the rear baggage compartment. All Series 1, 100, and 200 aircraft

title: "De Havilland Canada DHC-6 Twin Otter" content: and their variants (110, 210) were fitted with the 550-shaft-horsepower PT6A-20 engines. In 1969, the Series 300 was introduced, beginning with serial number 231. Both aircraft performance and payload were improved by fitting more powerful PT6A-27 engines. This was a engine that was flat-rated to for use in the Series 300 Twin Otter. The Series 300 proved to be the most successful variant by far, with 614 Series 300 aircraft and their subvariants (Series 310 for United Kingdom operators, Series 320 for Australian operators, etc.) sold before production in Toronto by de Havilland Canada ended in 1988. In 1976, a

title: "De Havilland Canada DHC-6 Twin Otter" content: designed for Twin Otter operations. According to the February 1976 edition of the "Official Airline Guide", Houston Metro operated 22 round-trip flights every weekday at this time between Clear Lake City (CLC) and Houston Intercontinental Airport (IAH, now Houston George Bush Intercontinental Airport) in a scheduled passenger airline shuttle operation. Houston Metro had agreements in place for connecting passenger feed services with Continental Airlines and Eastern Airlines at Houston Intercontinental, with this major airport having a dedicated STOL landing area at the time specifically for Twin Otter flight operations. The Clear Lake City STOLport is no longer in existence. The

title: "De Havilland Canada DHC-6 Twin Otter" content: Walt Disney World resort in Florida was also served with scheduled airline flights operated with Twin Otter aircraft. The Walt Disney World Airport (DWS), also known as the Lake Buena Vista STOLport, was a private airfield constructed by the Walt Disney Company with Twin Otter operations in mind. In the early 1970s, Shawnee Airlines operated scheduled Twin Otter flights between the Disney resort and nearby Orlando Jetport (MCO, now Orlando International Airport), as well as to Tampa International Airport (TPA). This service by Shawnee Airlines is mentioned in the "Air Commuter Section" of the Sept, 6, 1972 Eastern Air Lines

title: "De Havilland Canada DHC-6 Twin Otter" content: continued to operate the Twin Otter, as well. Larger scheduled passenger airlines based in the United States, Canada, Mexico, the Caribbean and Australia, particularly jetliner operators, also flew Twin Otters, with the aircraft providing connecting feeder service for these airlines. Jet aircraft operators which also flew the Twin Otter included Aeronaves de Mexico, Air BC, Alaska Airlines, ALM Antillean Airlines, Ansett Airlines, Cayman Airways, Frontier Airlines (1950-1986), LIAT, Norcanair, Nordair, Ozark Air Lines, Pacific Western Airlines, Quebecair, South Pacific Island Airways, Time Air, Transair (Canada), Trans Australian Airlines (TAA), Wardair Canada and Wien Air Alaska. In many cases, the excellent

title: "De Havilland Canada DHC-6 Twin Otter" content: the third winter evacuation flight to Amundsen–Scott South Pole Station to remove two people for medical reasons. The Argentine Air Force has used the Twin Otter in Antarctica since the 1970s, with at least one of them deployed year-round at Marambio Base. The Chilean Air Force has operated the type since 1980, usually having an example based at Presidente Frei Antarctic base of the South Shetland islands. As of August 2006, a total of 584 Twin Otter aircraft (all variants) remain in service worldwide. Major operators include: Libyan Arab Airlines (16), Maldivian Air Taxi (22), Trans Maldivian Airways (23), Kenn

title: "De Havilland Canada DHC-6 Twin Otter" content: a replacement for the single-engine de Havilland Canada DHC-3 Otter but also with other civil and military customers, with over 890 aircraft built. Many commuter airlines in the U.S. got their start by flying the Twin Otter in scheduled passenger operations. Kaymac Inc., a government civilian contractor based in Nevada, operates 18. De Havilland Canada DHC-6 Twin Otter The de Havilland Canada DHC-6 Twin Otter, currently marketed as the Viking Air DHC-6 Twin Otter, is a Canadian 19-passenger STOL (Short Takeoff and Landing) utility aircraft developed by de Havilland Canada and currently produced by Viking Air. The aircraft's fixed tricycle

Answer: 19