The General Electric GE4
turbojet
The turbojet is an airbreathing jet engine which is typically used in aircraft. It consists of a gas turbine with a propelling nozzle. The gas turbine has an air inlet which includes inlet guide vanes, a compressor, a combustion chamber, and ...
engine was designed in the late 1960s as the powerplant for the
Boeing 2707
The Boeing 2707 was an American supersonic passenger airliner project during the 1960s. After winning a competition for a government-funded contract to build an American supersonic airliner, Boeing began development at its facilities in Seatt ...
supersonic transport
The ogive.html" ;"title="Concorde supersonic transport had an ogive">ogival delta wing, a slender fuselage and four underslung Rolls-Royce/Snecma Olympus 593 engines.
file:Tu-144.jpg, The Tupolev Tu-144 was the first SST to enter service and th ...
. The GE4 was a nine-stage, single-shaft, axial-flow turbojet based largely on the
General Electric YJ93
The General Electric YJ93 turbojet engine was designed as the powerplant for both the North American XB-70 Valkyrie bomber and the North American XF-108 Rapier interceptor. The YJ93 was a single-shaft axial-flow turbojet with a variable-stator c ...
which powered the
North American XB-70 bomber. The GE4 was the most powerful engine of its era, producing dry, and with afterburner.
The Boeing 2707 was cancelled in 1971, putting an end to further work on the GE4.
Specifications (GE4/J5P)
Other Specifications
* Compressor inlet diameter: 60.6 in (1,539 mm)
* Exhaust nozzle diameter:
* Core airflow: per second
* Noise:
** Takeoff: 104
dB
** Sideline: 117
dB
** Approach: 107
dB
See also
References
{{GE aeroengines
1960s turbojet engines
GE4