General Electric CF700

The General Electric CF700 (military designation TF37) is an aft-fan turbofan development of the CJ610 turbojet. The fan blades are an extension of the low-pressure turbine blades.

CF700
A Dassault Falcon 20 nacelle with its distinctive bypass intake
Type	Turbofan
National origin	United States
Manufacturer	General Electric
First run	1960s
Major applications	Dassault Falcon 20 North American Sabreliner
Developed from	General Electric CJ610

Variants

CF700-2B

Baseline aft-fan CJ610 variant rated at 4,200 lbf (19,000 N) for take-off

CF700-2V

The 2B modified for continuous vertical operation on the Lunar Landing Research Vehicle (LLRV) and Lunar Landing Training Vehicle (LLTV)

TF37-GE-1

Military version of the CF700-2V on the Boeing Model 853-21 Quiet Bird

Applications

• Boeing Model 853-21 Quiet Bird
• Dassault Falcon 20
• North American Sabreliner Series 75A and 80
• Lunar Landing Research Vehicle/Lunar Landing Training Vehicle

Specifications (CF700)

Data from ^[1][2]

General characteristics

• Type: Two-spool aft-fan turbofan
• Length: 75.5 in (1,918 mm)
• Diameter: 33 in (838 mm)
• Dry weight: 735 lb (333.4 kg) with optional thrust reverser

Components

• Compressor: 8 stage high pressure compressor + 1 stage fan directly driven by the free LP turbine
• Turbine: 2 stage high pressure turbine, 1 stage low pressure turbine
• Fuel type: Aviation kerosene

Performance

• Maximum thrust: 4,550 lbf (20.24 kN)
• Bypass ratio: 2.0:1
• Air mass flow: 84 lb/s (38 kg/s) through the fan
• Specific fuel consumption: 0.67 lb/lbf·hr (68.3·kg/kN·h) at maximum cruising speed
• Thrust-to-weight ratio: 6.6

See also

Related development

• General Electric CJ610
• General Electric J85

Comparable engines

• General Electric CJ805-23

Related lists

• List of aircraft engines