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The AlliedSignal TFE731 was largely responsible for the broad-scale introduction of medium-size corporate fanjet aircraft, a trend that began in the early 1970s. The engine's low specific fuel consumption greatly increased the range of corporate jet aircraft. The TFE731 is used on many types of business jets, including Bombardier Learjets, Dassault Falcons, Cessna Citations, Raytheon Hawker 800s, and Israel Aircraft Industries 1125 Astras.

As one of the first development engines for the TFE731-3 engine series, this engine has been rebuilt nearly 200 times for various development and certification testing programs. It has undergone more than 2,000 hours of hard testing in the manufacturer's test cell facilities in Phoenix, Arizona, and on a Falcon 20 jet aircraft. This testing resulted in many improvements to the TFE731 series, including the development of a low-smoke combustion system and enhanced engine controls.

 Display Status

This object is on display in Thomas W. Haas We All Fly at the National Air and Space Museum in Washington, DC.

Thomas W. Haas We All Fly
Object Details
Date 1978 Country of Origin United States of America Type PROPULSION-Turbines (Jet) Manufacturer Garrett Corporation
 Designer Ivan Speer
 Physical Description Type: Turbofan, two-shaft, geared Thrust/speed: 16,500 N (3,700 lb) at 29,692 rpm Fan: Bypass ratio 2.8:1, single-stage, Compressor: 4-stage low-pressure axial, 1-stage high-pressure centrifugal Combustor: Annular reverse flow Turbine: Single-stage high-pressure, 3-stage low-pressure Weight: 342 kg (754 lb) Dimensions Overall: 754lb. (342kg)
Other: 28 3/16in. (71.6cm)
Other (Core length): 49 3/4in. (126.3cm)
Display (Engine on Stand): 1 ft. 11 7/16 in. × 1 ft. 2 3/8 in. × 1 ft. 10 15/16 in., 446.8kg (59.5 × 36.5 × 58.3cm, 985lb.)
 Materials Engine Components - Various alloys of aluminum, steel, etc.
Hoses/Clamps - Rubber
Protective Caps - Plastic
 Inventory Number A19970501000 Credit Line Gift of AlliedSignal Aerospace Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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