The General Electric J85 is a small single-shaft turbojet engine. Military versions produce up to 3,500 lb f (16 kN) of thrust dry; afterburning variants can reach up to 5,000 lb f (22 kN). The engine, depending upon additional equipment and specific model, weighs from …

Jun 1, 2020 · No engine in jet propulsion is quite like GE’s tiny J85 turbojet. Originally designed in 1954, the J85 is expected to power U.S. military aircraft until at least 2040. That’s not a typo: GE had delivered more than 12,000 J85 engines and its commercial engine variants by the end of its production run in 1988.

The history of the General Electric J85 turbojet engine is presented from its early inception as a single-use drone engine to its equipping of almost 3,000 frontline fighter and attack aircraft.

The non-afterburning J85-GE-17A powered the Cessna A-37A/B attack aircraft. The J85 had the highest thrust-to-weight ratio of production engines built for its time (up to 7.3:1 on the J85-GE-21). GE built more than 12,000 J85 engines before production ended in 1988.

Feb 28, 2025 · The J85 is a single-shaft axial-flow turbojet engine with an 8-stage compressor section and 2-stage turbine. The J85-GE-5 is rated at 2,680 pounds of thrust (11.921 kilonewtons), and 3,850 pounds (17.126 kilonewtons) with afterburner.

May 29, 2020 · LYNN, MA – GE Aviation has been awarded a $394 million contract from the Defense Logistics Agency (DLA) to provide J85 engine supplies for the United States Air Force and Navy. The work will be carried out by GE Aviation’s facility in Lynn, MA, and across GE’s U.S. supply chain sites.

The General Electric J85 is a small single-shaft turbojet engine. Military versions produce up to 2,950 lbf (13.1 kN) of thrust dry, afterburning variants can reach up to 5,000 lbf (22 kN). The engine, depending upon additional equipment and specific model, weighs from …

J85. The General Electric J85 turbine jet engine is used on the F-5 military fighter jet and the T-38 military trainer aircraft.

The GE J85-13 is a single-spool turbojet engine with an eight-stage axial-flow compressor and a two-stage turbine. Its efficient compressor discharges air that bypasses the combustion zone and is used to cool combustor and turbine components.

The J85-21 is a lightweight, single-spool turbojet engine with a rated nonafterburning thrust of 15.5 kN (3500 lbf). The engine has a nine-stage axial compressor with variable inlet guide vanes and variable stators for the first three stages. It has an annular combustor, a two-stage axial-