Ge J85 Engine Manual

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 vari=
ants can reach up to 5,000 lbf (22 kN). The engine, depending upon addition=
al equipment and specific model, weighs from 300 to 500 pounds (140 to 230 =
kg). It is one of GE's most successful and longest in service military jet =
engines, with the civilian versions having logged over 16.5 million hours o=
f operation. The United States Air Force plans to continue using the J85 in=
 aircraft through 2040.[1] Civilian models, known as the CJ610, are similar=
 but supplied without an afterburner and are identical to non-afterburning =
J85 variants, while the CF700 adds a rear-mounted fan for improved fuel eco=
nomy.

The J85 was originally designed to power a large decoy missile, the McDonne=
ll ADM-20 Quail. The Quail was designed to be released from a B-52 Stratofo=
rtress in-flight and fly for long distances in formation with the launch ai=
rcraft, multiplying the number of targets facing the SA-2 surface-to-air mi=
ssile operators on the ground. This mission demanded a small engine that co=
uld nevertheless provide enough power to keep up with the jet bomber. Like =
the similar Armstrong Siddeley Viper being built in England, the engine on =
a Quail drone had no need to last for extended periods of time, so therefor=
e could be built of low-quality materials.

Ge J85 Engine Manual
Download https://inutegyu.blogspot.com/?ah=3D2wHHUB



The basic engine design is quite small, about 17.7 inches (45 cm) in diamet=
er, and 45.4 inches (115 cm) long. It features an eight-stage axial-flow co=
mpressor powered by two turbine stages, and is capable of generating up to =
2,100 lbf (9.3 kN) of dry thrust, or more with an afterburner. At full thro=
ttle at sea level, this engine, without afterburner, consumes approximately=
 400 US gallons (1,500 L) of fuel per hour. At cruise altitude and power, i=
t consumes approximately 100 US gal (380 L) per hour.
 eebf2c3492