The YF120 is a twin-spool axial-flow afterburning turbofan. The design consists of a two-stage fan driven by the single-stage low-pressure turbine and a five-stage compressor driven by the single-stage high-pressure turbine.

The YF120 used advanced materials to reduce weight and featured a variable-cycle, counter-rotating turbine. The YF120 could operate as a conventional turbojet at supersonic speeds, while keeping the fuel-efficient characteristics of a turbofan at subsonic speeds.

The General Electric YF120 was a variable cycle turbofan engine designed by GE Aircraft Engines in the late 1980s/early 1990s for the United States Air Force's Advanced Tactical Fighter (ATF) project (which resulted in the F-22 Raptor).

Sep 14, 2020 · GE’s beefed-up YF120 was designed with a 12% larger fan to meet the Advanced Tactical Fighter program’s evolving requirements, which called for 35,000-lb. thrust and a greater emphasis on stealth.

The YF120 is a twin-spool axial-flow afterburning turbofan. The design consists of a two-stage fan driven by the single-stage low-pressure turbine and a five-stage compressor driven by the single-stage high-pressure turbine.

Feb 5, 2024 · GE’s incredibly forward-leaning YF120 engine design was the higher performer, thanks in large part to its groundbreaking variable cycle design that used bypass tubes to allow the engine to function like a low bypass turbofan during most flight regimes, but transition to nearly complete turbojet functionality at high altitudes where it would ...

The General Electric YF120, internally designated as GE37, was a variable cycle afterburning turbofan engine designed by General Electric Aircraft Engines in the late 1980s and early 1990s for the United States Air Force 's Advanced Tactical Fighter (ATF) program. It was designed to produce maximum thrust in the 35,000 lbf (156 kN) class.

The YF120 was an advanced engine, capable of efficient operation at low speed as well as supersonic. As shown here, it was equipped with a vectoring nozzle providing pitch axis control. Thrust was around 35,000 pounds.

Oct 4, 2012 · The ADVENT and AETD variable cycle engines are improving on the YF120 design while integrating technologies developed through GE Aviation's $600 million investment in commercial engine programs, such as high pressure compressors and lightweight CMCs in the high- and low-pressure turbines that result in reduced engine weight and minimize the ...

Mar 19, 2024 · If the ATF had chosen the YF120, we might have seen an aircraft with unparalleled agility and speed, dominating the skies with its supercruise capability. The YF120’s larger fan and innovative...