General Electric XT700-GE-700 Turboshaft Engine
date: label: Date
content: Circa 1974
name: label: Manufacturer
content: General Electric Aircraft Engines
notes: label: Physical Description
content: Type: Turboshaft
label: Physical Description
content: Power Rating: 1,167 kW (1,565 shp)
label: Physical Description
content: Compressor: 5-stage axial, single-stage centrifugal
label: Physical Description
content: Combustor: Annular
label: Physical Description
content: Turbine: 2-stage axial gas generator turbine, 2-stage axial power turbine
label: Physical Description
content: Weight: 192 kg (423 lb)
label: Summary
content: The T700 engine evolved directly from Army experience in the Vietnam War's difficult operating conditions that created helicopter engine maintenance problems. GE won the 1971 power plant competition for the proposed Utility Tactical Transport System (UTTAS) helicopter, with specifications for a high performance, low fuel consumption, reduced maintenance, and combat damage resistant engine. This is one of the experimental engines used in the UTTAS rotorcraft competition in 1974.
label: Summary
content: Modular construction allowed major engine assemblies to be replaced in the field within minutes. New compressor and intake design reduced maintenance and foreign object damage. A self-contained oil system and suction fuel system made the engine less vulnerable to combat damage.
label: Summary
content: Among military T700 powered helicopters were the Sikorsky UH-60 Black Hawk and SH-60 Seahawk, McDonnell Douglas AH-64 Apache, and Bell AH-1W SuperCobra. Commercial applications included the Bell 214ST and Sikorsky S-70C. The CT7 turboprop version powered such commuter aircraft as the Saab 340 and CASA/IPTN CN-235.
place: label: Country of Origin
content: United States of America
setName: label: See more items in
content: National Air and Space Museum Collection
creditLine: label: Credit Line
content: Transferred from the U.S. Army
dataSource: label: Data Source
content: National Air and Space Museum
identifier: label: Inventory Number
content: A19860224000
objectType: label: Type
content: PROPULSION-Turbines (Jet)
objectRights: label: Restrictions & Rights
content: CC0
physicalDescription: label: Materials
content: Aluminum, Steel, Stainless steel, Plastic, Rubber, Paint, Inconel
label: Dimensions
content: Length 118.1 cm (46.5 in.), Diameter 63.5 cm (25 in.)