Group : Turboshaft Engines
Status : Active
Origin : United States of America
Contractor : General Electric
Total Production : ?

The T700-GE-401 engine was the first engine qualified, under US Navy's rigorous salt ingestion tests, suitable for shipboard operations. This engine was selected to power AH-1Z/W and UH-1Y among other naval helicopters.

Group : Turboshaft Engines
Status : Active
Origin : United States of America
Contractor : General Electric
Total Production : ?

The T700-GE-401C is a more powerful version of -401 engines. It was selected to power Sikorsky's H-60 series helicopters.

Group : Turboshaft Engines
Status : Active
Also Known As : T6A
Origin : United States of America
Contractor : General Electric
Total Production : ?

The T6A engine is a derivative of T700 engine. T6A was selected to power Italian EH101 helicopters. T6A is a military variant of CT7-6 civil engine.

Group : Turboshaft Engines
Status : Active
Also Known As : T6E
Origin : United States of America
Contractor : General Electric
Total Production : ?

The T6E engine is the most powerful derivative to date of T700 engine. T6E reduces pilot workload and enhances maintainability. The T6E is one of two alternative propulsion systems approved to power NH90 helicopters.

Group : Turboshaft Engines
Status : Active
Also Known As : CT7
Origin : United States of America
Contractor : General Electric
Initial Operational Capability (IOC) : 1979
Total Production : 11,000

The T700-GE-700 engine was designed to power the US Army's UH-60A Black Hawk helicopter.

Group : Turboshaft Engines
Status : Active
Also Known As : T701
Origin : United States of America
Contractor : General Electric
Initial Operational Capability (IOC) : 1984
Total Production : ?

The T700-GE-701 engine is a more powerful version of baseline -700 engine. The early production AH-64A Apache attack helicopters were powered by two -701 engines.

Group : Turboprop Engines
Status : Active
Also Known As : CT7-5A2, CT7-9B, CT7-9C3 (Version powering US Coast Guard CN-235-300s)
Origin : United States of America
Contractor : GE Aerospace
Initial Operational Capability (IOC) : 1984
Total Production : ?

The General Electric CT7 introduced in 1984 is a variant of proven T700 turboshaft engine which powers Sikorsky's H-60 Hawk helicopter. CT7 was designed to power fixed wing aircraft such as CASA/IPTN CN-235 tactical transport and Saab 340 airliner. CT7 models intended to power turboprop aircraft comprise CT7-5 and CT7-9 variants. The engine family is rated between 1,700 and 2,145 shp. In addition to CN-235 and Saab 340, CT7 was selected to power Sukhoi's S-80 regional turboprop aircraft.

Group : Turboshaft Engines
Status : Active
Also Known As : CT7-2E1, CT7-2F1
Origin : United States of America
Contractor : GE Aerospace
Initial Operational Capability (IOC) : 1989
Total Production : ?

The CT7 is a family of commercial engines derived from the T700 turboshaft engine developed to power the US Army's UH-60 helicopter in the late 1970s. This commercial engine leverages the T700's reliability, operation under adverse environmental conditions and low maintainability. The first CT7 engines were introduced into service in 1984 on the Saab 340 and CASA/IPTN CN235. The CT7 engine family power range is between 1,700-shp and 2,800-shp powering both rotary-wing and fixed-wing aircraft.

The CT7-2 is commercial engine powering the Bell 214ST (B214ST) and S-70C helicopters in roles ranging from executive and medical transport to search and rescue, fire fighting and offshore oil rig support. The engine compressor includes six stages and is rated at 1,625-shp of power at sea level takeoff. The CT7-2E1 is a further variant selected to power the AgustaWestland AW189 helicopter. The CT7-2F1 variant has been selected to power the Bell 525 helicopter.

Group : Turboshaft Engines
Status : Active
Origin : United States of America
Contractor : General Electric
Initial Operational Capability (IOC) : 1990
Total Production : ?

The T700-GE-701C is the follow on -701 engine and more powerful than preceding models. The AH-64D, UH-60L and late production AH-64A were powered by -701C engines.

Group : Turboshaft Engines
Status : Active
Also Known As : T6A1
Origin : United States of America
Contractor : General Electric
Initial Operational Capability (IOC) : 1998
Total Production : 40

The T6A1 engine is a derivative of T700 engine. In 1998 T6A1 was selected to power Canadian EH101 helicopters with up to 40 engines to be produced. T6A1 is the military designation/version of CT7-6 civil engine.

Group : Turboshaft Engines
Status : Active
Also Known As : CT7-8A, CT7-8B
Origin : United States of America
Contractor : General Electric
Initial Operational Capability (IOC) : 2002
Total Production : ?

The CT7-8 engine is the newest commercial derivative of T700 engine family. It has been designed jointly with FiatAvio from Italy to power the S-92 multirole helicopter. The CT7-8A engine features an advanced, higher-flow compressor designed with new three-dimensional aerodynamic technology, a full authority digital electronic control (FADEC) system, and hot-section and turbine components proven in millions of flight hours on the CT7-9 engine.

Following Canada selection of Sikorsky's H-92 Cyclone for its $3 billion maritime helicopter project. The General Electric's CT7-8A turboshaft engines was selected to power Canada's H-92 twin-engine helicopters. These engines will be assembled, inspected, tested, repaired and overhauled locally.

Group : Turboshaft Engines
Status : Active
Origin : United States of America
Contractor : General Electric
Initial Operational Capability (IOC) : 2003
Total Production : ?

The CT7-8C is a 3,000-hp class turboshaft engine derived form the proven CT7-8 engine. Its increased power has been achieved through an upgraded high-pressure turbine and a new advanced three-stage low-pressure turbine. The CT7-8C engine has been selected to power the H-92 Superhawk multi-purpose military helicopter.

Group : Turboshaft Engines
Status : Active
Also Known As : T701D
Origin : United States of America
Contractor : General Electric
Initial Operational Capability (IOC) : 2004
Total Production : ?

The T700-GE-701D is the latest -701 engine variant featuring improved hot section components. These components provide twice durability and 5% more power output than -701C model engines. It will be provided as an upgrade kit to being applied to existing -700 engines. T700-GE-701D is one of the keys of the UH-60M modernization program, which involves A and L UH-60 models upgraded to M standard.

The US Army awarded T700-GE-701D engine qualification in November 2004. It is expected that the entire fleet of US Army's Apache and H-60 Black Hawk helicopters will be powered by -701D model. Actually, the -701D was selected by the US Army as the standard equipment for new production UH-60M helicopters. Finally, the standard engine for the UH-60M will be the -701E model which is a derivative of the -701D.

Group : Turboshaft Engines
Status : Active
Also Known As : CT7-8F, CT7-8F5 (Spanish Army NH90 helicopter version)
Origin : United States of America
Contractor : General Electric
Initial Operational Capability (IOC) : 2004
Total Production : 59

The CT7-8E is a 3,000-hp class turboshaft engine derived form the proven CT7-8 engine. Its increased power has been achieved through an upgraded high-pressure turbine with new materials and a new advanced three-stage low-pressure turbine. CT7-8E includes a Full Authority Digital Electronic Control (FADEC) system. The CT7-8E engine is intended to power AgustaWestland EH101, US101 , and NH Industries NH90 helicopters. The first engine, a set of three engines, was delivered by General Electric to Agusta Westland US101/EH101 on July 6, 2004. CT7-8E engine rated at 2,500 shaft-horsepower was selected to power US101 Marine One presidential helicopter in early 2005.

Group : Turboshaft Engines
Status : Active
Also Known As : T6E1
Origin : United States of America
Contractor : General Electric
Initial Operational Capability (IOC) : 2005
Total Production : 392

The T6E1 engine rated at 2,500-shp is a derivative of T700 engine. T6E1 reduces pilot workload and enhances maintainability. It features an advanced, increased-airflow compressor and a dual-channel, full-authority digital electronic control (FADEC) system. The engine was co-developed by GE and Avio SpA of Turin, Italy. The T6E1 is one of two alternative propulsion systems approved to power NH90 helicopters.

The Italian Ministry of Defense selected the General Electric T6E1 engine to power their NH90 helicopters with first deliveries beginning in late 2005. The Italian Army will receive 60 NH90s and the Italian Navy will receive 56 NH90s both models powered by two T6E1 engines. The Italian MoD also has placed options for 160 additional T6E1s. Avio SpA will assemble and test the engines for Italy's NH90s.

Group : Turboshaft Engines
Status : Active
Also Known As : CT7-8B-5 (early designation), YT706-GE-700 (development designation), YT706-GE-700R
Origin : United States of America
Contractor : GE Aerospace
Initial Operational Capability (IOC) : 2008
Total Production : 122

The T706 engine is a derivative of the General Electric CT7-8A turboshaft engine. The newest member of the T700/CT7 engine family features a larger compressor, hot section improvements and a full authority digital engine control (FADEC). These characteristics are meant to provide enhanced performance to the US Army MH-60M Black Hawk special operations helicopter in hot-and-high mission scenarios. So far, the T706-GE-700 engine has been selected to power up to 61 US Army MH-60M helicopters.

In August 2005, the CT7-8B5, now T706-GE-700, turboshaft engine rated at 2,600-shaft-horsepower (shp) was selected to power the US Army's MH-60M special operations helicopter. General Electric received a $15.5 million contract for engine development and testing. The first production engines are scheduled for delivery in 2008.

Group : Turboshaft Engines
Status : Active
Origin : United States of America
Contractor : GE Aerospace
Initial Operational Capability (IOC) : 2009
First Flight : August 28, 2008
Total Production : ?

The T700-GE-701E is a derivative of the proven T700-GE-701D engine. The -701E model was selected to power the US Army's UH-60M helicopter in 2005 replacing the -701D as standard equipment. The first UH-60M helicopter took to the skies powered by -701E engines on August 28, 2008. Approximately 900 such helicopters will be produced for the US Army beginning in 2009.

The -701E engine incorporates an on-engine-mounted full authority digital engine control (FADEC), and includes fail-fixed control design that retains fixed engine power in the event both channels of the control should fail. The new engine has been designed to flawlessly integrate with the UH-60M's fly-by-wire flight control system to provide more precise handling as well as reduced maintenance requirements.