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The Lockheed/ Boeing/ General Dynamics YF-22 is an American single-seat, twin-engine, stealth fighter technology demonstrator prototype designed for the United States Air Force (USAF). The design team, with Lockheed as the prime contractor, was a finalist in the USAF's Advanced Tactical Fighter (ATF) competition, and two prototypes were built ...
YF-24: A module comprising an YF-22 and a YF-23 vernier. First flown on the Long March 2A. [10] YF-24A: A module comprising an YF-22A and a YF-23A verniers. YF-24B: A module comprising an YF-22B and a YF-23B verniers. YF-24C: A module comprising an YF-22C and a YF-23C verniers. YF-24D: A module comprising an YF-22D and a YF-23D verniers.
This engine is bundled into modules along the YF-22 upper stage engine. [13] [14] [15] [16]The relevant modules for second stage application are: YF-24: A module comprising an YF-22 and a single YF-23 verniers.
The YF120-powered the YF-22 and YF-23 to supercruise speeds of Mach 1.58 and Mach 1.72 respectively. [6] [7] [N 1] The first YF-22 (right), registration number N22YF, was powered by two YF120 engines. The Engineering & Manufacturing Development (EMD) configuration of the F120 was tested in December 1990.
Trailer connector according to NATO STANAG 4007. NATO uses a 12-pin connector [NATO 1] [NATO 2] according to STANAG 4007. [1] However, note that there are often deviations from the standard depending on which country it is applied, which means that the table below may not be accurate.
A YF-22 in the foreground with a YF-23 in the background The two contractor teams submitted evaluation results and their PSC proposals for full-scale development in December 1990, [ 57 ] and on 23 April 1991, Donald Rice , the Secretary of the Air Force announced that the YF-22 team was the winner. [ 71 ]
The YF-215 engine has been designed to power the first stage of the Long March 9 rocket, with 26 of these engines in the first stage. [1] A successful ignition test of the pre-combustion chamber and gas generator of the engine was conducted on 12 May 2023.
Lockheed YF-22; Mikoyan Project 1.44; Northrop Grumman B-2 Spirit; Northrop YF-23 (inverse S-duct) Short SC.1; Sukhoi Su-47; Tupolev Tu-154; Tupolev Tu-154M; Yakovlev Yak-40; Yakovlev Yak-42; The Boeing 747-300 Trijet (not to be confused with the later 747-300) was designed with an S-duct layout, but never built.