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The XP-81 first flew in December 1945, the first aircraft to use a combination of turboprop and turbojet power. The XC-113, with T31 in the No. 2 position. The T31 engine was the first American turboprop engine to power an aircraft. [5] It made its initial flight in the Consolidated Vultee XP-81 on 21 December 1945.
It was also the first four-engined turboprop. Its first flight was on 16 July 1948. The world's first single engined turboprop aircraft was the Armstrong Siddeley Mamba-powered Boulton Paul Balliol, which first flew on 24 March 1948. [32] The Kuznetsov NK-12 is the most powerful turboprop to enter service
The Lockheed L-188 Electra is an American turboprop airliner built by Lockheed.First flown in 1957, it was the first large turboprop airliner built in the United States. With its fairly high power-to-weight ratio, huge propellers and very short wings (resulting in the majority of the wingspan being enveloped in propwash), large Fowler flaps which significantly increased effective wing area ...
The Republic XF-84H "Thunderscreech" is an American experimental turboprop aircraft derived from the F-84F Thunderstreak.Powered by a turbine engine that was mated to a supersonic propeller, the XF-84H had the potential of setting the unofficial air speed record for propeller-driven aircraft, but was unable to overcome aerodynamic deficiencies and engine reliability problems, resulting in the ...
[editorializing] The He 178 was the world's first turbojet-powered aircraft to fly. [17] The world's first turboprop was the Jendrassik Cs-1 designed by the Hungarian mechanical engineer György Jendrassik. It was produced and tested in the Ganz factory in Budapest between 1938 and 1942. It was planned to fit to the Varga RMI-1 X/H twin-engined ...
One XT57 (PT5), a turboprop development of the J57, was installed in the nose of a JC-124C (BuNo 52-1069), and tested in 1956. [3] [4]Rated at 15,000 shaft horsepower (11,000 kW), the XT57 was the most powerful turboprop engine in existence at the time, [5] and it remains the most powerful turboprop ever built in the United States. [2]
Boom Supersonic, the American company building what promises to be the world’s fastest airliner, broke the sound barrier for its first time with a test flight in Mojave, California, on Tuesday.
The XJ37 was being worked on at the same time as competing Westinghouse axial-flow designs undergoing development, the 19A and 19B, were being test-run through the 1943-45 period, resulting in America's first production axial-flow turbojet engine, the Westinghouse J30, of which some 260 examples were made for the earliest American military jets ...