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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: Mitchell, chief designer at Supermarine Aviation Works, which operated as a subsidiary of Vickers-Armstrong from 1928. Mitchell pushed the Spitfire's distinctive elliptical wing designed by Beverley Shenstone to have the thinnest possible cross-section, helping give the aircraft a higher top speed than several contemporary fighters, including the Hawker Hurricane. Mitchell continued to refine the design until his death in 1937, whereupon his colleague Joseph Smith took over as chief designer, overseeing the Spitfire's development through . During the Battle of Britain, from July to October 1940, the public perceived the Spitfire to be the main RAF fighter, though the more

title: "Supermarine Spitfire" content: numerous Hurricane shouldered a greater proportion of the burden against Nazi Germany's air force, the Luftwaffe. However, Spitfire units had a lower attrition rate and a higher victory-to-loss ratio than those flying Hurricanes because of the Spitfire's higher performance. During the battle, Spitfires were generally tasked with engaging Luftwaffe fighters—mainly Messerschmitt Bf 109E-series aircraft, which were a close match for them. After the Battle of Britain, the Spitfire superseded the Hurricane to become the backbone of RAF Fighter Command, and saw action in the European, Mediterranean, Pacific, and South-East Asian theatres. Much loved by its pilots, the Spitfire served in

title: "Supermarine Spitfire" content: of the Type 300. On 1 December 1934, the Air Ministry issued contract "AM 361140/34", providing £10,000 for the construction of Mitchell's improved Type 300, design. On 3 January 1935, they formalised the contract with a new specification, F10/35, written around the aircraft. In April 1935, the armament was changed from two .303 in (7.7 mm) Vickers machine guns in each wing to four .303 in (7.7 mm) Brownings, following a recommendation by Squadron Leader Ralph Sorley of the Operational Requirements section at the Air Ministry. On 5 March 1936, the prototype ("K5054") took off on its first flight from

title: "Supermarine Spitfire" content: Eastleigh Aerodrome (later Southampton Airport). At the controls was Captain Joseph "Mutt" Summers, chief test pilot for Vickers, who is quoted as saying "Don't touch anything" on landing. This eight-minute flight came four months after the maiden flight of the contemporary Hurricane. "K5054" was fitted with a new propeller, and Summers flew the aircraft on 10 March 1936; during this flight, the undercarriage was retracted for the first time. After the fourth flight, a new engine was fitted, and Summers left the test flying to his assistants, Jeffrey Quill and George Pickering. They soon discovered that the Spitfire was a

title: "Supermarine Spitfire" content: very good aircraft, but not perfect. The rudder was oversensitive, and the top speed was just 330 mph (528 km/h), little faster than Sydney Camm's new Merlin-powered Hurricane. A new and better-shaped wooden propeller allowed the Spitfire to reach 348 mph (557 km/h) in level flight in mid-May, when Summers flew "K5054" to RAF Martlesham Heath and handed the aircraft over to Squadron Leader Anderson of the Aeroplane & Armament Experimental Establishment (A&AEE). Here, Flight Lieutenant Humphrey Edwardes-Jones took over the prototype for the RAF. He had been given orders to fly the aircraft and then to make his report

title: "Supermarine Spitfire" content: to the Air Ministry on landing. Edwardes-Jones' report was positive; his only request was that the Spitfire be equipped with an undercarriage position indicator. A week later, on 3 June 1936, the Air Ministry placed an order for 310 Spitfires, before the A&AEE had issued any formal report. Interim reports were later issued on a piecemeal basis. The British public first saw the Spitfire at the RAF Hendon air display on Saturday 27 June 1936. Although full-scale production was supposed to begin immediately, numerous problems could not be overcome for some time, and the first production Spitfire, "K9787", did not

title: "Supermarine Spitfire" content: roll off the Woolston, Southampton assembly line until mid-1938. In February 1936, the director of Vickers-Armstrong, Sir Robert MacLean, guaranteed production of five aircraft a week, beginning 15 months after an order was placed. On 3 June 1936, the Air Ministry placed an order for 310 aircraft, at a cost of £1,395,000. Full-scale production of the Spitfire began at Supermarine's facility in Woolston, but order clearly could not be completed in the 15 months promised. Supermarine was a small company, already busy building Walrus and Stranraer flying boats, and Vickers was busy building Wellington bombers. The initial solution was to

title: "Supermarine Spitfire" content: be overcome, and a further order was placed for 200 Spitfires on 24 March 1938. The two orders covered the K, L, and N prefix serial numbers. In mid-1938, the first production Spitfire rolled off the assembly line and was flown by Jeffrey Quill on 15 May 1938, almost 24 months after the initial order. The final cost of the first 310 aircraft, after delays and increased programme costs, came to £1,870,242 or £1,533 more per aircraft than originally estimated. A production aircraft cost about £9,500. The most expensive components were the hand-fabricated and finished fuselage at roughly £2,500, then

title: "Supermarine Spitfire" content: the Rolls-Royce Merlin engine at £2,000, followed by the wings at £1,800 a pair, guns and undercarriage, both at £800 each, and the propeller at £350. In 1935, the Air Ministry approached Morris Motors Limited to ask how quickly their Cowley plant could be turned to aircraft production. In 1936, this informal request for major manufacturing facilities was turned into a formal scheme, known as the shadow factory plan, to boost British aircraft production capacity under the leadership of Herbert Austin. He was given the task of building nine new factories, and to supplement the existing British car manufacturing industry

title: "Supermarine Spitfire" content: by either adding to overall capacity or increasing the potential for reorganisation to produce aircraft and their engines. In 1938, construction began on the Castle Bromwich Aircraft Factory (CBAF), next to the aerodrome, and the installation of the most modern machine tools then available began two months after work started on the site. Although Morris Motors, under Lord Nuffield (an expert in mass motor-vehicle construction), managed and equipped the factory, it was funded by government money. By the beginning of 1939, the factory's original, estimated cost of £2,000,000 had more than doubled, and even as the first Spitfires were being

title: "Supermarine Spitfire" content: first Spitfire. On 17 May, Minister of Aircraft Production Lord Beaverbrook telephoned Lord Nuffield and manoeuvred him into handing over control of the Castle Bromwich plant to his ministry. Beaverbrook immediately sent in experienced management staff and workers from Supermarine and gave control of the factory to Vickers-Armstrong. Although resolving the problems took time, in June 1940, 10 Mk IIs were built; 23 rolled out in July, 37 in August, and 56 in September. By the time production ended at Castle Bromwich in June 1945, a total of 12,129 Spitfires (921 Mk IIs, 4,489 Mk Vs, 5,665 Mk IXs, and

title: "Supermarine Spitfire" content: 1,054 Mk XVIs) had been built. CBAF went on to become the largest and most successful plant of its type during the 1939–45 conflict. As the largest Spitfire factory in the UK, by producing a maximum of 320 aircraft per month, it built 12,000 aircraft of this type, before its closure in 1945. During the Battle of Britain, the Luftwaffe made concerted efforts to destroy the main manufacturing plants at Woolston and Itchen, near Southampton. The first bombing raid, which missed the factories, came on 23 August 1940. Over the next month, other raids were mounted until, on 26 September

title: "Supermarine Spitfire" content: 1940, both factories were destroyed, with 92 people killed and a large number injured. Most of the casualties were experienced aircraft production workers. Fortunately for the future of the Spitfire, many of the production jigs and machine tools had already been relocated by 20 September, and steps were being taken to disperse production to small facilities throughout the Southampton area. To this end, the British government requisitioned the likes of Vincent's Garage in Station Square, Reading, which later specialised in manufacturing Spitfire fuselages, and Anna Valley Motors, Salisbury, which was to become the sole producer of the wing leading-edge fuel

title: "Supermarine Spitfire" content: tanks for photo-reconnaissance Spitfires, as well as producing other components. A purpose-built works, specialising in manufacturing fuselages and installing engines, was built at Star Road, Caversham in Reading. The drawing office in which all Spitfire designs were drafted was relocated to Hursley Park, near Southampton. This site also had an aircraft assembly hangar where many prototype and experimental Spitfires were assembled, but since it had no associated aerodrome, no Spitfires ever flew from Hursley. Four towns and their satellite airfields were chosen to be the focal points for these workshops: Southampton's Eastleigh Airport; Salisbury's High Post and Chattis Hill aerodromes;

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: to 12 pilots responsible for testing all developmental and production Spitfires built by the company in the Southampton area. Quill devised the standard testing procedures, which with variations for specific aircraft designs operated from 1938. Alex Henshaw, chief test pilot at Castle Bromwich from 1940, was placed in charge of testing all Spitfires built at that factory. He co-ordinated a team of 25 pilots and assessed all Spitfire developments. Between 1940 and 1946, Henshaw flew a total of 2,360 Spitfires and Seafires, more than 10% of total production. Henshaw wrote about flight testing Spitfires: After a thorough preflight check, I

title: "Supermarine Spitfire" content: would take off and, once at circuit height, I would trim the aircraft and try to get her to fly straight and level with hands off the stick ... Once the trim was satisfactory, I would take the Spitfire up in a full-throttle climb at 2,850 rpm to the rated altitude of one or both supercharger blowers. Then I would make a careful check of the power output from the engine, calibrated for height and temperature ... If all appeared satisfactory, I would then put her into a dive at full power and 3,000 rpm, and trim her to fly

title: "Supermarine Spitfire" content: hands and feet off at IAS (Indicated Air Speed). Personally, I never cleared a Spitfire unless I had carried out a few aerobatic tests to determine how good or bad she was. The production test was usually quite a brisk affair; the initial circuit lasted less than ten minutes and the main flight took between twenty and thirty minutes. Then the aircraft received a final once-over by our ground mechanics, any faults were rectified and the Spitfire was ready for collection. I loved the Spitfire in all of her many versions. But I have to admit that the later marks,

title: "Supermarine Spitfire" content: although they were faster than the earlier ones, were also much heavier and so did not handle so well. You did not have such positive control over them. One test of manoeuvrability was to throw her into a flick-roll and see how many times she rolled. With the Mark II or the Mark V one got two-and-a-half flick-rolls but the Mark IX was heavier and you got only one-and-a-half. With the later and still heavier versions, one got even less. The essence of aircraft design is compromise, and an improvement at one end of the performance envelope is rarely achieved

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: new, high-powered, liquid-cooled, in-line aero engines. They also featured refinements such as retractable undercarriages, fully enclosed cockpits, and low-drag, all-metal wings. These advances had been introduced on civil airliners years before, but were slow to be adopted by the military, who favoured the biplane's simplicity and manoeuvrability. Mitchell's design aims were to create a well-balanced, high-performance fighter aircraft capable of fully exploiting the power of the Merlin engine, while being relatively easy to fly. At the time, with France as an ally, and Germany thought to be the most likely future opponent, no enemy fighters were expected to appear over

title: "Supermarine Spitfire" content: spar, preventing the wings from twisting. Mitchell has sometimes been accused of copying the wing shape of the Heinkel He 70, which first flew in 1932, but as Beverley Shenstone, the aerodynamicist on Mitchell's team, explained: "Our wing was much thinner and had quite a different section to that of the Heinkel. In any case, it would have been simply asking for trouble to have copied a wing shape from an aircraft designed for an entirely different purpose." The wing section used was from the NACA 2200 series, which had been adapted to create a thickness-to-chord ratio of 13% at

title: "Supermarine Spitfire" content: the adoption of a cooling system which used 100% glycol. The radiators were housed in a new radiator-duct designed by Fredrick Meredith of the Royal Aircraft Establishment (RAE) at Farnborough, Hampshire. This used the cooling air to generate thrust, greatly reducing the net drag produced by the radiators. In turn, the leading-edge structure lost its function as a condenser, but it was later adapted to house integral fuel tanks of various sizes— a feature patented by Vickers-Supermarine in 1938. The airflow through the main radiator was controlled by pneumatic exit flaps. In early marks of Spitfire (Mk I to Mk

title: "Supermarine Spitfire" content: along its span, the angle of incidence decreasing from +2° at its root to -½° at its tip. This caused the wing roots to stall before the tips, reducing tip-stall that could otherwise have resulted in a wing drop, often leading to a spin. As the wing roots started to stall, the separating air stream started to buffet (vibrate) the aircraft, warning the pilot, allowing even relatively inexperienced pilots to fly it to the limits of its performance. This washout was first featured in the wing of the Type 224, and became a consistent feature in subsequent designs leading to

title: "Supermarine Spitfire" content: the Spitfire. The complex wing design, especially the precision required to manufacture the vital spar and leading-edge structures, caused some major delays in the production of the Spitfire at first. The problems increased when the work was put out to subcontractors, most of whom had never dealt with metal-structured, high-speed aircraft. By June 1939, most of these problems had been resolved, and production was no longer held up by a lack of wings. All the main flight controls were originally metal structures with fabric covering. Designers and pilots felt that having ailerons which required a degree of effort to move

title: "Supermarine Spitfire" content: at high speed would avoid unintended aileron reversal, throwing the aircraft around and potentially pulling the wings off. Air combat was also felt to take place at relatively low speeds and high-speed manoeuvring would be physically impossible. Flight tests showed the fabric covering of the ailerons "ballooned" at high speeds, adversely affecting the aerodynamics. Replacing the fabric covering with light alloy dramatically improved the ailerons at high speed. During the Battle of Britain, pilots found the Spitfire's ailerons were far too heavy at high speeds, severely restricting lateral manoeuvres such as rolls and high-speed turns, which were still a feature

title: "Supermarine Spitfire" content: reversal speed of , which was somewhat lower than that of some contemporary fighters. The Royal Aircraft Establishment noted that, at indicated airspeed, roughly 65% of aileron effectiveness was lost due to wing twist. The new wing of the Spitfire F Mk 21 and its successors was designed to help alleviate this problem. Its stiffness was increased by 47%, and a new aileron design using piano hinges and geared trim tabs meant the theoretical aileron reversal speed was increased to . Alongside the redesigned wing, Supermarine also experimented with the original wing, raising the leading edge by 1 inch (2.54

title: "Supermarine Spitfire" content: "g". RAF fighter pilots soon learned to "half-roll" their aircraft before diving to pursue their opponents. Sir Stanley Hooker explained the carburettor was adopted because it "increased the performance of the supercharger and thereby increased the power of the engine". In March 1941, a metal disc with a hole was fitted in the fuel line, restricting fuel flow to the maximum the engine could consume. While it did not cure the problem of the initial fuel starvation in a dive, it did reduce the more serious problem of the carburettor being flooded with fuel by the fuel pumps under negative

title: "Supermarine Spitfire" content: "g". Invented by Beatrice "Tilly" Shilling, it became known as "Miss Shilling's orifice". Further improvements were introduced throughout the Merlin series, with Bendix-manufactured pressure carburettors, designed to allow fuel to flow during all flight attitudes, introduced in 1942. Due to a shortage of Brownings, which had been selected as the new standard rifle calibre machine gun for the RAF in 1934, early Spitfires were fitted with only four guns, with the other four fitted later. Early tests showed that while the guns worked perfectly on the ground and at low altitudes, they tended to freeze at high altitude, especially the

title: "Supermarine Spitfire" content: outer wing guns, because the RAF's Brownings had been modified to fire from an open bolt. While this prevented overheating of the cordite used in British ammunition, it allowed cold air to flow through the barrel unhindered. Supermarine did not fix the problem until October 1938, when they added hot air ducts from the rear of the wing-mounted radiators to the guns, and bulkheads around the gunbays to trap the hot air in the wing. Red fabric patches were doped over the gun ports to protect the guns from cold, dirt, and moisture until they were fired. The decision on

title: "Supermarine Spitfire" content: the arming of the Spitfire (and the Hurricane) is told in Captain C. H. Keith's book "I Hold my Aim". Keith held various appointments with the RAF dealing with designing, development and technical policy of armament equipment. He organised a conference, with Air Commodore Tedder in the chair, on 19 July 1934. He says "I think it can be reasonably contended that the deliberations of that conference made possible, if not certain, of the winning of the Battle of Britain, almost exactly six years later". At that meeting, scientific officer Captain F.W. 'Gunner' Hill presented charts based on his calculations

title: "Supermarine Spitfire" content: showing that future fighters must carry no less than eight machine-guns, each of which must be capable of firing 1,000 shots a minute. Hill's assistant in making his calculations had been his 14-year-old daughter. Even if the eight Brownings worked perfectly, pilots soon discovered that they were not sufficient to destroy larger aircraft. Combat reports showed that an average of 4,500 rounds were needed to shoot down an enemy aircraft. In November 1938, tests against armoured and unarmoured targets had already indicated that the introduction of a weapon with a calibre of at least 20 mm was urgently needed. A

title: "Supermarine Spitfire" content: stopped after firing a single round, while the port gun fired 30 rounds before seizing. If one cannon seized, the recoil of the other threw the aircraft off aim. Nevertheless, 30 more cannon-armed Spitfires were ordered for operational trials, and they were soon known as the Mk IB, to distinguish them from the Browning-armed Mk IA; they were delivered to No. 19 Squadron beginning in June 1940. The Hispanos were found to be so unreliable that the squadron requested an exchange of its aircraft with the older Browning-armed aircraft of an operational training unit. By August, Supermarine had perfected a

title: "Supermarine Spitfire" content: more reliable installation with an improved feed mechanism and four .303s in the outer wing panels. The modified fighters were then delivered to 19 Squadron. The operational history of the Spitfire with the RAF began with the first Mk Is "K9789", which entered service with 19 Squadron at RAF Duxford on 4 August 1938. The Spitfire achieved legendary status during the Battle of Britain, a reputation aided by the famous "Spitfire Fund" organised and run by Lord Beaverbrook, the Minister of Aircraft Production. In fact, the Hurricane outnumbered the Spitfire throughout the battle, and shouldered the burden of the defence

title: "Supermarine Spitfire" content: against the Luftwaffe; however, because of its higher performance, the overall attrition rate of the Spitfire squadrons was lower than that of the Hurricane units, and the Spitfire units had a higher victory-to-loss ratio. The key aim of Fighter Command was to stop the Luftwaffe's bombers; in practice, whenever possible, the tactic was to use Spitfires to counter German escort fighters, by then based in northern France, particularly the Bf 109s, while the Hurricane squadrons attacked the bombers. Well-known Spitfire pilots included "Johnnie" Johnson—34 enemy aircraft (e/a) shot down—who flew the Spitfire right through his operational career from late 1940

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: to the Soviet Air Force. Though some were used at the frontline in 1943, most of them saw service with the Protivo-Vozdushnaya Oborona (English: "Anti-air Defence Branch"). The Spitfire also served in the Pacific Theatre where the Spitfire met its match in the Japanese Mitsubishi A6M Zero. Lt. Gen. Claire Chennault noted: "The RAF pilots were trained in methods that were excellent against German and Italian equipment, but suicide against the acrobatic Japs." Although not as fast as the Spitfire, the Zero could out-turn the Spitfire with ease, could sustain a climb at a very steep angle, and could stay

title: "Supermarine Spitfire" content: in the air for three times as long. To counter the Zero, Spitfire pilots had to adopt a "slash and run" policy and use their faster speed and diving superiority to fight while avoiding classic dogfights. That Southeast Asia was a lower-priority area also did not help, and was allocated few Spitfires and other modern fighters compared to Europe, which allowed the Japanese to easily achieve air superiority by 1942. Over the Northern Territory of Australia, Royal Australian Air Force and RAF Spitfires assigned to No. 1 Wing RAAF helped defend the port town of Darwin against air attack by

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: high-speed diving trials were undertaken at Farnborough to investigate the handling characteristics of aircraft travelling at speeds near the sound barrier (i.e., the onset of compressibility effects). Because it had the highest limiting Mach number of any aircraft at that time, a Spitfire XI was chosen to take part in these trials. Due to the high altitudes necessary for these dives, a fully feathering Rotol propeller was fitted to prevent overspeeding. During these trials, "EN409", flown by Squadron Leader J. R. Tobin, reached (Mach 0.891) in a 45° dive. In April 1944, the same aircraft suffered engine failure in another

title: "Supermarine Spitfire" content: dive while being flown by Squadron Leader Anthony F. Martindale, Royal Air Force Volunteer Reserve, when the propeller and reduction gear broke off. The dive put the aircraft to Mach 0.92, the fastest ever recorded in a piston-engined aircraft, but when the propeller came off, the Spitfire, now tail-heavy, zoom-climbed back to altitude. Martindale blacked out under the 11 g loading, but when he resumed consciousness, he found the aircraft at about 40,000 feet with its (originally straight) wings now slightly swept back. Martindale successfully glided the Spitfire back to the airfield and landed safely. Martindale was awarded the Air

title: "Supermarine Spitfire" content: Force Cross for his exploits. RAE Bedford (RAE) modified a Spitfire for high-speed testing of the stabilator (then known as the "flying tail") of the Miles M.52 supersonic research aircraft. RAE test pilot Eric Brown stated that he tested this successfully during October and November 1944, attaining Mach 0.86 in a dive. On 5 February 1952, a Spitfire 19 of 81 Squadron based at Kai Tak in Hong Kong reached probably the highest altitude ever achieved by a Spitfire. The pilot, Flight Lieutenant Edward "Ted" Cyril Powles, was on a routine flight to survey outside air temperature and report on

title: "Supermarine Spitfire" content: other meteorological conditions at various altitudes in preparation for a proposed new air service through the area. He climbed to indicated altitude, with a true altitude of . The cabin pressure fell below a safe level, and in trying to reduce altitude, he entered an uncontrollable dive which shook the aircraft violently. He eventually regained control somewhere below and landed safely with no discernible damage to his aircraft. Evaluation of the recorded flight data suggested he achieved a speed of , (Mach 0.96) in the dive, which would have been the highest speed ever reached by a propeller-driven aircraft if

title: "Supermarine Spitfire" content: except in the dedicated photo-reconnaissance role, when its guns were replaced by extra fuel tanks. Supermarine developed a two-seat variant known as the T Mk VIII to be used for training, but none were ordered, and only one example was ever constructed (identified as N32/"G-AIDN" by Supermarine). In the absence of an official two-seater variant, a number of airframes were crudely converted in the field. These included a 4 Squadron SAAF Mk VB in North Africa, where a second seat was fitted instead of the upper fuel tank in front of the cockpit, although it was not a dual-control aircraft,

title: "Supermarine Spitfire" content: and is thought to have been used as the squadron "run-about". The only unofficial two-seat conversions that were fitted with dual-controls were a few Russian lend/lease Mk IX aircraft. These were referred to as Mk IX UTI and differed from the Supermarine proposals by using an inline "greenhouse" style double canopy rather than the raised "bubble" type of the T Mk VIII. In the postwar era, the idea was revived by Supermarine and a number of two-seat Spitfires were built by converting old Mk IX airframes with a second "raised" cockpit featuring a bubble canopy. Ten of these TR9 variants

title: "Supermarine Spitfire" content: were then sold to the Indian Air Force along with six to the Irish Air Corps, three to the Royal Netherlands Air Force and one for the Royal Egyptian Air Force. Currently several of the trainers are known to exist, including both the T Mk VIII, a T Mk IX based in the US, and the "Grace Spitfire" "ML407", a veteran flown operationally by 485(NZ) Squadron in 1944. The Seafire, a name derived from "sea", and "Spitfire", was a naval version of the Spitfire specially adapted for operation from aircraft carriers. Although the Spitfire was not designed for the rough-and-tumble

title: "Supermarine Spitfire" content: of carrier-deck operations, it was considered the best available fighter at the time. The basic Spitfire design did impose some limitations on the use of the aircraft as a carrier-based fighter; poor visibility over the nose, for example, meant that pilots had to be trained to land with their heads out of the cockpit and looking along the port cowling of their Seafire. Like the Spitfire, the Seafire also had a relatively narrow undercarriage track, which meant that it was not ideally suited to deck operations. Early Seafire marks had relatively few modifications to the standard Spitfire airframe; however cumulative

title: "Supermarine Spitfire" content: to the fighter-bomber role. Although the later Griffon-engined marks lost some of the favourable handling characteristics of their Merlin-powered predecessors, they could still outmanoeuvre their main German foes and other, later American and British-designed fighters. The final version of the Spitfire, the Mk 24, first flew at South Marston on 13 April 1946. On 20 February 1948, almost twelve years from the prototype's first flight, the last production Spitfire, "VN496", left the production line. Spitfire Mk 24s were used by only one regular RAF unit, with 80 Squadron replacing their Hawker Tempests with F Mk 24s in 1947. With these

title: "Supermarine Spitfire" content: planes, 80 Squadron continued its patrol and reconnaissance duties from Wunstorf in Germany as part of the occupation forces, until it relocated to Kai Tak Airport, Hong Kong in July 1949. During the Chinese Civil War, 80 Squadron's main duty was to defend Hong Kong from perceived Communist threats. Operation Firedog during the Malayan Emergency saw the Spitfire fly over 1,800 operational sorties against the Malaysian Communists. The last operational sortie of an RAF Spitfire was flown on 1 April 1954, by PR Mk 19 Spitfire "PS888" flying from RAF Seletar, in Singapore. The last non-operational flight of a Spitfire

title: "Supermarine Spitfire" content: in RAF service, which took place on 9 June 1957, was by a PR Mk 19, "PS583", from RAF Woodvale of the Temperature and Humidity Flight. This was also the last known flight of a piston-engined fighter in the RAF. The last nation in the Middle East to operate Spitfires was Syria, which kept its F 22s until 1953. In late 1962, Air Marshal Sir John Nicholls instigated a trial when he flew Spitfire "PM631", a PR Mk 19 in the custody of the Battle of Britain Memorial Flight, against an English Electric Lightning F 3 (a supersonic jet-engined interceptor)

title: "Supermarine Spitfire" content: in mock combat at RAF Binbrook. At the time British Commonwealth forces were involved in possible action against Indonesia over Malaya and Nicholls decided to develop tactics to fight the Indonesian Air Force P-51 Mustang, a fighter that had a similar performance to the PR Mk 19. The first airframe (PM631) developed mechanical issues which removed it from the trial. Another PR Mk 19, "PS853", which is now owned by Rolls-Royce, was on gate-guard duties at Binbrook, having been retired from the Battle of Britain Memorial Flight (BBMF) one year before. It had been maintained in running condition by ground

title: "Supermarine Spitfire" content: crews at Binbrook, and after a short time was participating in the trials. At the end of the trials, RAF pilots found that Firestreak infra-red guided missiles had trouble acquiring the Spitfire due to a low exhaust temperature, and decided that the twin ADEN cannons were the only weapons suited to the task, which was complicated by the tight turning circle of the Spitfire, and the Lightning's proclivity for over-running the Spitfire. It was concluded that the most effective and safest way for a modern jet-engined fighter to attack a piston-engined fighter was to engage full afterburner at an altitude

title: "Supermarine Spitfire" content: lower than the Spitfire, and behind it to perform a hit-and-run attack, contrary to all established fighter-on-fighter doctrine at that time. There are 54 Spitfires and a few Seafires in airworthy condition worldwide, although many air museums have examples on static display, for example, Chicago's Museum of Science and Industry has paired a static Spitfire with a static Ju 87 R-2/Trop. Stuka dive bomber. The oldest surviving Spitfire is a Mark 1, serial number "K9942"; it is preserved at the Royal Air Force Museum Cosford in Shropshire. This aircraft was the 155th built and first flew in April 1939. It

title: "Supermarine Spitfire" content: flew operationally with No. 72 Squadron RAF until June 1940, when it was damaged in a wheels-up landing. After repair, it was used for training until August 1944, when it became one of several Battle of Britain aircraft veterans that were allocated to the Air Historical Branch for future museum preservation. What may be the most originally restored Spitfire in the world is maintained at Fantasy of Flight in Polk City, Florida. Over a six-year period in the 1990s, this aircraft was slowly restored by Personal Plane Services in England using almost 90% of its original aircraft skins. Owner Kermit

title: "Supermarine Spitfire" content: Weeks insisted that the aircraft be restored as closely as possible to its original condition. Machine guns, cannon, gun sight and original working radios are all installed. Two MK 1 Supermarine Spitfires, originally restored by the Aircraft Restoration Company, remain in flying condition at the Imperial War Museum Duxford, in Cambridgeshire, England. Both restored by American billionaire Thomas Kaplan, one has been donated to the Imperial War Museum and the second was auctioned in July 2015 at Christie's, London. It is one of only four flying MK 1 Spitfires in the world. The aircraft fetched a record £3.1 million at

title: "Supermarine Spitfire" content: auction on 9 July, beating the previous record for a Spitfire of £1.7 million set in 2009. One Spitfire is kept in airworthy condition in the Israeli Air Force Museum. After hostilities ceased in Asia in 1945, a number of Spitfire Mk.XIVs were reportedly buried, after being greased, tarred and prepared for long-term storage, in crates in Burma. Excavations carried out at Yangon International Airport (formerly RAF Mingaladon) in early 2013 failed to locate any of the rumoured aircraft, and the team reported that they found no evidence that Spitfires were shipped there in crates or buried. Pat Woodward, who

title: "Supermarine Spitfire" content: was an RAF pilot operating from Burma at the end of the war, reported that no such burying took place. In 2016 it was reported that the hunt was continuing. British company Historic Flying Limited has either restored or built from scratch a significant proportion of the Spitfires that are now airworthy. Several other manufacturers have produced replica Spitfires, either as complete aircraft or as kits for self-building. These range in scale from 60% scale to full-size, and most use wooden construction rather than the original all-metal monocoque design. These include the Jurca Spit from France, and those manufactured by

title: "Supermarine Spitfire" content: Tally Ho Enterprises in Canada. Supermarine Aircraft – originally from Brisbane, Australia, and now based in Cisco, Texas – manufacture the 80% scale Spitfire Mk26 and the 90% scale Mk26B replicas. Their Supermarine Aircraft Spitfire is supplied in kit form and is the only all-aluminium reproduction Spitfire in production. The Isaacs Spitfire (1975) and the Time Warp Spitfire Mk V (1996) are homebuilt 60% scale replicas. During and after the Battle of Britain the Spitfire became a symbol of British resistance: for example, Lord Beaverbrook's "Spitfire Fund" of 1940 was one campaign which drew widespread public attention to the Spitfire.

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: Royal Air Force

Answer: Engelse luchtmacht

Answer: RAF

Answer: Royal Air Force


Question: Which road, railway or canal does this bridge carry?

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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,

Answer: A201 road

Answer: A201

Answer: A201 road


Question: What country does this lake belong to?

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title: "Lake Teletskoye" content: Lake Teletskoye Lake Teletskoye (; ) is the largest lake in the Altai Mountains and the Altai Republic, Russia, and has depth up to 325 meters. Situated at a height of above the sea level, the lake is long and wide and lies between the mountain ridges Korbu and Al-tyntu, on the junction of the Sailughem Mountains and the Western Sayans. Its surface area is ; however, due to its considerable depth (), the lake contains no less than 40 km³ (9.6 cubic miles) of fresh water. Annual water level fluctuations are estimated at some 348 sm. The lake transparency

title: "Lake Teletskoye" content: field base of Institute of Taxonomy and Ecology of Animals () by the Siberian Division of the Russian Academy of Sciences () at the northwest part of the lake, about 6 km from head water of Biya River. Therein studies are performed of the insect-eaters and rodents of Altai Republic, helminthofauna of vertebrates in biocenoses of taiga, ichthyocenose and animal plankton of Lake Teletskoye. Near the base there is located the research-and-production sport-and-sanitary base of Gorno-Altaisk State University. Tomsk State University carries out its investigation more than 50 years. Many years here work ecologists from the Institute of Water and

title: "Lake Teletskoye" content: Ecological Problems () by the Siberian Division of the Russian Academy of Sciences, and also geologists and archeologists from the Academy. Geomorphologists and geologists scrutinize geological structure of Lake Teletskoye, its paleogeography, age, and origin. It has been known for a long time that there are gold in placers and bedrock deposits in the Altai. The Geomorphologists from Tomsk State University works in the Teletskoye geology-prospecting detachment searching for gold-placers. They managed to establish a new search criterion for a placer. The base for the discovery were the palaeoglaciological studies during the last few years and theoretical models of the

title: "Lake Teletskoye" content: diluvial morpholithogenesis. The content of the precious component is everywhere much higher than the lowest accepted industrial standard, sometimes it’s tremendous. Lake Teletskoye Lake Teletskoye (; ) is the largest lake in the Altai Mountains and the Altai Republic, Russia, and has depth up to 325 meters. Situated at a height of above the sea level, the lake is long and wide and lies between the mountain ridges Korbu and Al-tyntu, on the junction of the Sailughem Mountains and the Western Sayans. Its surface area is ; however, due to its considerable depth (), the lake contains no less than

Answer: Russia

Answer: RF

Answer: Russian Federation

Answer: RU

Answer: ru

Answer: Federation of Russia

Answer: Россия

Answer: Rus

Answer: RUS

Answer: Rossiyskaya Federatsiya

Answer: Rossijskaja Federatsija

Answer: Rossiya

Answer: Russia

Answer: Rossija

Answer: Российская Федерация


Question: Who is the manufacturer 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: 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: de Havilland Canada

Answer: Viking Air

Answer: de Havilland Aircraft of Canada Ltd.

Answer: Viking Air

Answer: de Havilland Canada

Answer: DHC


Question: Who is the sponsor of this building?

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title: "Allianz Arena" content: Allianz Arena Allianz Arena is a football stadium in Munich, Bavaria, Germany with a 75,000 seating capacity. Widely known for its exterior of inflated ETFE plastic panels, it is the first stadium in the world with a full colour changing exterior. Located at 25 Werner-Heisenberg-Allee at the northern edge of Munich's Schwabing-Freimann borough on the Fröttmaning Heath, it is the second-largest arena in Germany behind Westfalenstadion in Dortmund. FC Bayern Munich has played its home games at the Allianz Arena since the start of the 2005–06 season. The club had previously played their home games at the Munich Olympic Stadium

title: "Allianz Arena" content: since 1972. 1860 Munich previously had a 50% share in the stadium, but Bayern Munich purchased their shares for €11 million in April 2006. The arrangement allowed 1860 Munich to play at the stadium while retaining no ownership until 2025. However, in July 2017 the rental contract was terminated, making Bayern Munich the sole tenants of the stadium. The large financial services provider Allianz purchased the naming rights to the stadium for 30 years. However, this name cannot be used when hosting FIFA and UEFA events, since these governing bodies have policies forbidding corporate sponsorship from companies that are not

title: "Allianz Arena" content: official tournament partners. During the 2006 FIFA World Cup, the stadium was referred to as FIFA WM-Stadion München (FIFA World Cup Stadium, Munich). In UEFA club and Nations League matches, it is known as Fußball Arena München (Football Arena Munich) , and it hosted the 2012 UEFA Champions League Final. The stadium has been nicknamed "Schlauchboot" ("dinghy"). Since 2012 the museum of Bayern Munich, FC Bayern Erlebniswelt, has been located inside the Allianz Arena. Effective with the city's approval of modifications that was granted 16 January 2006, the legal capacity of the stadium increased from 69,000 to 71,000 spectators (including

title: "Allianz Arena" content: standing room). The lower tier can seat up to 20,000, the middle tier up to 24,000, and the upper tier up to 22,000. 10,400 of the seats in the lower tier corners can be converted to standing room to allow an additional 3,120 spectators. The total capacity includes 2,000 business seats, 400 seats for the press, 106 luxury boxes with seating for up to 174, and 165 berths for wheelchairs and the like. From the second half of the 2005–06 Bundesliga season, the arena is able to accommodate 69,901 spectators at league and DFB-Pokal games, but because of UEFA regulations,

title: "Allianz Arena" content: the capacity remained at 66,000 seats for UEFA Champions League and UEFA Cup games. Bayern Munich limited capacity during their league and cup games to 69,000. The partial roof covers all seats, although winds can still blow rain onto some of them. Prior to the 2012–13 season, Bayern Munich announced that capacity had been increased to 71,000 for domestic matches and 68,000 for UEFA matches, with the addition of 2,000 seats in the upper tier of the arena. Allianz Arena also offers three day-care centers and a fan shop, the FC Bayern Munich Megastore. Merchandise is offered at stands all

title: "Allianz Arena" content: along the inside of the exterior wall inside the area behind the seats. Numerous restaurants and fast-food establishments are also located around the stadium. There are four team locker rooms (one each for the two home teams and their respective opponents), four coaches' locker rooms, and two locker rooms for referees. Two areas are provided where athletes can warm up (approx. 110 m² each). There are also 550 toilets and 190 monitors in the arena. On 28 April 2013, FC Bayern announced to sell 300 more tickets in the Südkurve starting with the 2013–14 Bundesliga season. On 21 January 2014,

title: "Allianz Arena" content: Karl-Heinz Rummenigge declared that FC Bayern discusses a further expansion of the Allianz Arena. About 2,000 new seats to be installed in the upper tier and about 2,000 more tickets are to be sold in the Nord- and Südkurve. In August 2014, it was reported that the capacity expansion was completed leading to a new maximum capacity of 75,024 in the Bundesliga and 69,334 in international matches. An expansion was approved in January 2015 to expand the stadium's capacity to 75,000 for Bundesliga Games and 70,000 for games in the Champions League. The stadium construction began on 21 October 2002

title: "Allianz Arena" content: and was officially opened on 30 May 2005. The primary designers are architects Herzog & de Meuron. The stadium is designed so that the main entrance to the stadium would be from an elevated esplanade separated from the parking space consisting of Europe’s biggest underground car park. The roof of the stadium has built-in roller blinds which may be drawn back and forth during games to provide protection from the sun. The arena facade is constructed of 2,874 ETFE-foil air panels that are kept inflated with dry air to a differential pressure of 3.5 Pa. The panels appear white from

title: "Allianz Arena" content: far away but when examined closely, there are little dots on the panels. When viewed from far away, the eye combines the dots and sees white. When viewed close up however, it is possible to see through the foil. The foil has a thickness of 0.2 mm. Each panel can be independently lit with white, red, or blue light. The panels are lit for each game with the colours of the respective home team—red for Bayern Munich, blue for TSV and white for the German national football team. White is also used when the stadium is a neutral venue, like

title: "Allianz Arena" content: the 2012 UEFA Champions League Final. Other colours or multicolour or interchanging lighting schemes are theoretically possible, but the Munich Police strongly insists on using a single-colour lighting scheme due to several car accidents on the nearby A9 Autobahn with drivers being distracted by the changing lights. Allianz Arena's innovative stadium-facade lighting concept has been subsequently adopted in other newly built venues, like MetLife Stadium in New Jersey, which lights up in blue for the National Football League's Giants and green for the Jets. With electricity costs for the light of about €50 (USD$75) per hour, the construction evolved such

title: "Allianz Arena" content: luminosity that in clear nights the stadium can easily be spotted even from Austrian mountain tops, e.g. from a distance of 50 miles (80 km). Patrons may park their cars in Europe's largest parking structure, comprising four four-story parking garages with 9,800 parking places. In addition, 1,200 places were built into the first two tiers of the arena, 350 places are available for buses (240 at the north end, and 110 at the south entrance), and 130 more spots are reserved for those with disabilities. The stadium is located next to the Fröttmaning U-Bahn station. This is on the U6

title: "Allianz Arena" content: line of the Munich U-Bahn. From the subway station just south of the arena, visitors approach the stadium through a park that was designed to disentangle and guide them to the entrance. An esplanade rises gradually from ground level at the subway station entrance, practically building the parking garage's cover, to the entrance level of the stadium. On the other side of the Autobahn, the Fröttmaning Hill with its windmill affords a marvellous view on the stadium. Also the Romanesque Heilig-Kreuz-Kirche, the oldest structure on the area of the City of Munich designed to serve religious purposes, is located there

title: "Allianz Arena" content: together with its copy, an artwork in concrete as a reminder for the village of Fröttmaning which disappeared with the construction of the Autobahn. The arena was commissioned by the Allianz Arena München Stadion GmbH, founded in 2001, and was owned in equal parts by the two football clubs that call it home. The GmbH's CEO was Karl-Heinz Wildmoser, Jr. until the unraveling of the stadium corruption affair (see below). Since then, Bernd Rauch, Peter Kerspe, and Walter Leidecker have led the company. In April 2006, FC Bayern Munich bought out TSV 1860 Munich's 50% share in the arena for

title: "Allianz Arena" content: a reported €11 million. 1860 managing director Stefan Ziffzer stated that the deal prevented insolvency for the club. The terms of the agreement gave 1860 the right to buy back their 50% share of the arena for the price of sale plus interest anytime before June 2010. In November 2007, 1860 Munich resigned that right. In advance, the income of two friendly-games both clubs shared equally instead of having that money going to Allianz Arena GmbH. Due to financial turbulences of 1860 Munich, Bayern Munich took over all the shares and now owns 100% of the Allianz Arena. Allianz paid

title: "Allianz Arena" content: significant sums for the right to lend its name to the stadium for a duration of 30 years. However, as Allianz was not a sponsor of the 2006 World Cup and is not an official UEFA sponsor, the Allianz logo had to be removed during the World Cup and is covered during Champions League games. The cost of the construction itself ran to €286 million but financing costs raised that figure to a total of €340 million. In addition, the city and State incurred approximately €210 million for area development and infrastructure improvements. On 14 November 2005 at the annual

title: "Allianz Arena" content: general meeting, many FC Bayern Munich club members complained about the uncomfortable draft inside the arena. As a result, closable doors were installed and spectators now enjoy watching the games in greater comfort. The Ultras and many other fans protested at several home games against the seats and some of the rules of the arena which they perceive as "fan unfriendly". For example, a spectator may not enter with a megaphone or a pennant that a single person cannot carry unfurled, and pennant poles with a length of over one metre are prohibited. The complaint is that these rules and

title: "Allianz Arena" content: the designer seats put a damper on the fan experience. The presence of a large fence and safety nets in front of the southern curve (seat bloc reserved for fans of the FC Bayern Munich) are also often criticized. These complaints have had some success. From the 2006–07 season, blocks 112 and 113 have been converted into terracing, in the usual German style so that seats can be installed for UEFA and international matches, whose regulations demand seating for all spectators. On 21 October 2002, voters went to the polls to determine whether a new stadium should be built in

title: "Allianz Arena" content: this location and whether the city of Munich should provide the necessary infrastructure. About two thirds of the voters decided in favor of the proposition. An alternative to constructing the new arena had been a major reconstruction of the Olympic Stadium but this option had been refused by its architect Günther Behnisch. The Swiss architect firm of Herzog & de Meuron then developed the concept of the stadium with a see-through exterior made of ETFE-foil panels, that can be lit from the inside and are self-cleaning. Construction started in the autumn of 2002 and was completed by the end of

title: "Allianz Arena" content: April 2005. The Fröttmaning and Marienplatz stations of the subway line U6 were expanded and improved in conjunction with the arena construction. The Fröttmaning subway station was expanded from two to four tracks, while the Marienplatz U-Bahn station was outfitted with additional pedestrian connector tunnels running parallel to the subway tracks, which lead towards the S-Bahn portion of the station, lessening congestion among passengers making connections to the Munich S-Bahn. To be able to handle the additional traffic load, the Autobahn A9 was expanded to three and four lanes going each way and another exit was added to the A99

title: "Allianz Arena" content: north of the arena. On 19 May 2012, the 2011–12 UEFA Champions League final was held at the Allianz Arena. Bayern Munich, who were drawn as home team, was set to play against Chelsea. Chelsea won on penalties after the game had tied 1–1 after regulation and extra time. Bastian Schweinsteiger's penalty hit Petr Čech's left post, and Didier Drogba scored the winning penalty. On 25 May 2012, Bayern opened a museum about its history, FC Bayern Erlebniswelt, inside the Allianz Arena. Between March 2004 and August 2006, a corruption affair relating to the stadium occupied the football world and

title: "Allianz Arena" content: German courts. On 9 March, Karl-Heinz Wildmoser, Sr., president of TSV 1860 Munich, his son Karl-Heinz Wildmoser, Jr., chief executive officer of Allianz Arena München Stadion GmbH, and two others were charged with corruption in connection with the award of arena construction contracts and taken into custody. On 12 March 2004, Wildmoser, Sr. struck a plea bargain and was released. As part of the plea bargain, he relinquished the presidency of the club three days later, and on 18 May, the investigation into his conduct was closed. His son, Karl-Heinz Wildmoser, Jr., remained in custody. At a bail hearing on

title: "Allianz Arena" content: 29 June, the judge refused bail on the grounds of danger of flight and obstruction of justice. The District Attorney filed charges on 23 August 2004, accusing him of fraud, corruption and tax evasion. The case was that Wildmoser, Jr. had awarded the construction contract at an inflated price, provided the Austrian builder Alpine with inside information that enabled the builder to win the contract, and in return received €2.8 million. On 13 May 2005, Karl-Heinz Wildmoser, Jr. was convicted and sentenced by a Munich court to four and a half years in prison. He was released on bail pending

title: "Allianz Arena" content: his appeal. The Federal Court of Justice rejected the appeal in August 2006. On 30 May 2005, 1860 Munich played an exhibition game against 1. FC Nürnberg. The next day, the record German champions Bayern Munich played a game against the Germany national team. Both games had been sold out since early March 2005. Patrick Milchraum of TSV 1860 scored the first official goal at the stadium. On 2 June, in response to high demand, the first "arena derby" took place between the two tenants. That game was won by TSV 1860 with the help of a goal by Paul

title: "Allianz Arena" content: Agostino. Prior to opening day the alumni teams of both clubs played each other in an exhibition game in front of a crowd of 30,000 where all stadium functions were thoroughly tested. The stadium's first goal in a competitive game went to Roy Makaay of FC Bayern in the semi-finals of 2005 DFL-Ligapokal on 26 July 2005. In the same game, Thomas Hitzlsperger of VfB Stuttgart scored the first goal in an official game by a visiting team. The game ended with a 2–1 win for Stuttgart. The first goal in a league game was scored by Owen Hargreaves of

title: "Allianz Arena" content: FC Bayern when the home team won 3–0 in its 2005–06 Bundesliga season opener against Borussia Mönchengladbach on 5 August 2005. The first goal in a league game by a visiting team was scored by Dynamo Dresden on 9 September 2005 in the 2. Bundesliga match against 1860 Munich. That game ended in a score of 1–2 in front of a full house which included approximately 20,000 – 22,000 fans who had traveled to Munich from Dresden for the game. Dresden thus became the first visiting team to win a league game at Allianz Arena. The first goal against FC

title: "Allianz Arena" content: Bayern Munich in a league game at Allianz Arena was scored by Miroslav Klose of Werder Bremen on 5 November 2005 in the first minute of play. This was to remain the visitors' only goal that day as the game went to the FC Bayern with a final score of 3–1. FC Bayern broke its consecutive sell-out record by selling out each of its first ten home games at Allianz Arena. The stadium was one of the venues for the 2006 FIFA World Cup. However, due to sponsorship contracts, the arena was called "FIFA World Cup Stadium Munich" during the

title: "Allianz Arena" content: World Cup. The following games were played at the stadium during the World Cup of 2006: Allianz Arena Allianz Arena is a football stadium in Munich, Bavaria, Germany with a 75,000 seating capacity. Widely known for its exterior of inflated ETFE plastic panels, it is the first stadium in the world with a full colour changing exterior. Located at 25 Werner-Heisenberg-Allee at the northern edge of Munich's Schwabing-Freimann borough on the Fröttmaning Heath, it is the second-largest arena in Germany behind Westfalenstadion in Dortmund. FC Bayern Munich has played its home games at the Allianz Arena since the start of

Answer: Allianz SE

Answer: Allianz SE

Answer: Allianz


Question: Which government has executive power of this island?

Instruction: Utilizing the given image, obtain documents that respond to the following question:

title: Dejima content: be paid by the "VOC". Like the city of Nagasaki, Dejima was under the direct supervision of Edo through a governor ("Nagasaki bugyō"). Every ship that arrived in Dejima was inspected. Its sails were held by the Japanese until they released the ship to leave. They confiscated religious books and weapons. The Dutch were not allowed to hold any religious services on the island. Despite the financial burden of maintaining the isolated outpost on Dejima, the trade with Japan was very profitable for the Dutch, initially yielding profits of 50% or more. Trade declined in the 18th century, as only

Answer: Nagasaki bugyō

Answer: Nagasaki bugyo

Answer: Nagasaki bugyō

Answer: Nagasaki Magistrate


Question: What country does this facility belong to?

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

title: "Kusumba Mosque" content: Kusumba Mosque Kusumba Mosque () is a mosque in Manda Upazila of Naogaon District, Bangladesh. It was built in 1558-59. On the west bank of Atrai river, under the Manda Upazila of Naogaon District in Bangladesh, the mosque named Kusumba. Kusumba mosque is named after the village Kusumba. It was built during the period of Afgan rule in Bangladesh by a high-ranking official named Sulaiman. It was built under one of the last Suri rulers. His name was Ghiyasuddin Bahadur Shah.Although the mosque was built under the suri rule, the architectural pattern was not influenced by the earlier Suri architecture

title: "Kusumba Mosque" content: Bangladesh. The mosque is an attraction that is marveled at and studied, due its wonderful architectural style and elaborate decorations. The mosque lies inside a walled enclosure with a monumental gateway with standing spaces for guards. The inscription tablet is totally in Arabic, except the part "built by" is in Persian.Walking up to the mosque, visitors will be greeted by a massive gateway, which is the only entrance to the mosque that is protected by a surrounding wall. One can almost imagine the guards outside, still protecting this breathtaking building. The foundation and most of the building was constructed from

title: "Kusumba Mosque" content: bricks, although the outer walls, some interior walls, side screens and columns are of stone. The central Mihrab is designed in the west. Opposite the central and southeastern entrances, the interior west wall has two mihrabs. There is division in the two mihrabs and they had different platforms. That is because the time of construction the general public was separated from officials and nobility during the prayers. Kusumba Mosque Kusumba Mosque () is a mosque in Manda Upazila of Naogaon District, Bangladesh. It was built in 1558-59. On the west bank of Atrai river, under the Manda Upazila of Naogaon

Answer: Bangladesh

Answer: bd

Answer: People's Republic of Bangladesh

Answer: Bangladesh

Answer: BAN


Question: What is the time zone of this island?

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

title: Panarea content: Empire. In modern times, Panarea has become a fashionable vacation spot. In 2011, it was described by "W" magazine as "the epicenter of the chicest summer scene in the Mediterranean." Panarea and the entire Aeolian chain were declared a UNESCO World Heritage site in 2000. Largely because of this, construction and development are strictly regulated and the community retains its storied insularity. Most residences admit only temporary occupancy, and the few year-round homes available are highly expensive and difficult to obtain. Panarea Panarea (; "Euōnymos") is the second smallest (after Basiluzzo) of the eight Aeolian Islands, a volcanic island chain

Answer: UTC+02:00

Answer: utc+2

Answer: Eastern European Time

Answer: South African Standard Time

Answer: Central Africa Time

Answer: Central European Summer Time

Answer: CEST

Answer: Israel Standard Time

Answer: West Africa Summer Time

Answer: UTC+02:00