use pilatus pc-9
The Vietnam ___MASK30___ , also known as the Second Indochina ___MASK30___ , and known in Vietnam as Resistance ___MASK30___ Against America or simply the American ___MASK30___ , was a ___MASK30___ that occurred in Vietnam , Laos , and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975 . It was the second of the Indochina Wars and was officially fought between North Vietnam and the government of South Vietnam . The North Vietnamese army was supported by the Soviet Union , China and other communist allies and the South Vietnamese army was supported by the United States , South Korea , Australia , Thailand and other anti - communist allies and the ___MASK30___ is therefore considered a Cold ___MASK30___ - era proxy ___MASK30___ . TurboJET is the brand name for the operations of the Hong Kong - headquartered Shun Tak - China ___MASK40___ Ship Management Limited , which was established from the joint venture between Shun Tak Holdings Limited and China ___MASK40___ International Investment Hong Kong Limited in July 1999 . It operates hydrofoil ferry services in southern China . The Royal Thai Air Force or RTAF is the air force of the Kingdom of Thailand . Since its establishment in 1913 as one of the earliest air forces of Asia , the Royal Thai Air Force had engaged in numerous major and minor battles . During the Vietnam ___MASK30___ era , the air force was supplied with USAF - aid equipment . The Australian Flying Corps ( AFC ) was the branch of the Australian Army responsible for operating aircraft during World ___MASK30___ I , and the forerunner of the Royal Australian Air Force ( RAAF ). The AFC was established in 1912 , though it was not until 1914 that it began ___MASK69___ . The Swiss Air Force is the air component of the Swiss Armed Forces , established on 31 July 1914 as part of the army and in October 1936 an independent ___MASK68___ . Aerobatics ( a portmanteau of " aerial - acrobatics ") is the practice of flying maneuvers involving aircraft altitudes that are not used in normal flight . Aerobatics are performed in airplanes and gliders for ___MASK47___ , ___MASK23___ , entertainment , and sport . Additionally , some helicopters , such as the MBB Bo 105 , are capable of limited aerobatic maneuvers . An example of a fully aerobatic helicopter , capable of performing loops and rolls , is the Westland Lynx . The term is sometimes referred to as " acrobatics ", especially when translated . The Royal Saudi Air Force ( RSAF ""), is the ___MASK79___ branch of the Saudi Arabian armed forces . The RSAF has developed from a largely defensive military force into one with an advanced offensive capability . The RSAF maintains the third largest fleet of F - 15s after the American and Japanese air forces . Exhaust gas or flue gas is emitted as a result of the ___MASK53___ of fuels such as natural gas , gasoline , petrol , biodiesel blends , diesel fuel , fuel oil , or coal . According to the type of engine , it is discharged into the atmosphere through an exhaust pipe , flue gas stack , or propelling nozzle . It often disperses downwind in a pattern called an " exhaust plume ". The Pilatus PC - 7 Turbo ___MASK81___ is a low - wing tandem - ___MASK45___ ___MASK47___ aircraft , manufactured by Pilatus Aircraft of Switzerland . The aircraft is capable of all basic ___MASK47___ functions including aerobatics , instrument , tactical and night flying . It has been selected by more than 20 air forces as their ab initio trainer . Since the aircraft ' s introduction in 1978 , close to 500 have been sold , with the majority still in ___MASK68___ . Over one million hours have been flown by PC - 7s worldwide . The Swiss Armed Forces ( German : " Schweizer Armee ," French : " Armée suisse ," Italian : " Esercito svizzero ," Romanisch : " Armada svizra )" operates on land , in the air , and in international waters . Under the country ' s militia system , professional soldiers constitute about 5 percent of the ___MASK91___ and the rest are conscripts or volunteers aged 19 to 34 ( in some cases up to 50 ). Because of Switzerland ' s long history of neutrality , the armed forces do not take part in conflicts in other countries , but it does participate in international peacekeeping missions . Switzerland is part of the NATO Partnership for Peace programme . The Australian ___MASK17___ Force ( ADF ) is the military organisation responsible for the ___MASK17___ of Australia . It consists of the Royal Australian Navy ( RAN ), Australian Army , Royal Australian Air Force ( RAAF ) and a number of ' tri - service ' units . The ADF has a strength of just over 80 , 000 full - time personnel and active reservists , and is supported by the Department of ___MASK17___ and several other civilian agencies . A turboprop ___MASK9___ is a turbine ___MASK9___ that drives an aircraft propeller . In contrast to a turbojet , the ___MASK9___ ' s exhaust gases do not contain enough energy to create significant thrust , since almost all of the ___MASK9___ ' s power is used to drive the propeller . The Pilatus PC - 9 is a single - ___MASK9___ , low - wing tandem - ___MASK45___ turboprop ___MASK47___ aircraft manufactured by Pilatus Aircraft of Switzerland . Designed as a more powerful evolution of the Pilatus PC - 7 , the PC - 9 ' s first flight was made in May 1984 after which certification was achieved in September 1985 . After this , the first production orders for the type were received from the Royal Saudi Air Force , with deliveries commencing in 1985 . Since then , more than 250 airframes have been produced across five different variants and the type is employed by a number of military and civilian operators around the world , including the Swiss Air Force , the Royal Australian Air Force , and the Royal Thai Air Force . The Royal Australian Air Force ( RAAF ), formed March 1921 , is the ___MASK83___ branch of the Australian ___MASK17___ Force . It directly continues the traditions of the Australian Flying Corps ( AFC ), formed on 22 October 1912 . The RAAF provides support across a spectrum of operations such as air superiority , precision strikes , intelligence , surveillance and reconnaissance , air mobility , and humanitarian support . Switzerland , officially the Swiss Confederation , is a federal republic in Europe . It consists of 26 cantons , and the city of Bern is the ___MASK45___ of the federal authorities . The country is situated in Western - Central Europe , and is bordered by Italy to the south , France to the west , Germany to the north , and Austria and Liechtenstein to the east . Switzerland is a landlocked country geographically divided between the Alps , the Swiss Plateau and the Jura , spanning an area of . While the Alps occupy the greater part of the territory , the Swiss population of approximately eight million people is concentrated mostly on the plateau , where the largest cities are to be found : among them are the two global cities and economic centres Zürich and Geneva .