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J402-CA-700

20 years after CAE's entry into the aircratf gas turbine business with the highly successful J69 engine family, the company began the development of what became its second most important family : the J402 series. In 1972, following a competitive evaluation, CAE received a contract from the navy to develop the J402-CA-400 engine to power the McDonnel Douglas Harpoon (AGM-84A), an anti-ship cruise missile.

During the early 1970s, the J402-CA-700 (CAE Model 372-2A)  engine was selected to power the Beech MQM-107 Streaker Variable-speed Targer Vehicul (VSTT). These target drones were not one-time-use vehicles like the Harpoon missiles were, so the lifetime of the engine had to be extended from 1 hour to 15 hours. To accomplish this, the turbine temperature was reduced, as well as the rotational speeds. A new starter system was included to give the engine the ability to restart. The result was an engine that was slightly less powerful (640 lbf vs 660 lbf).

 

J402-CA-700 Technical data

ManufacturerTeledyne CAE
Initial testing1973
Production1975-1984
TypeSingle-shaft turbojet
Nb. built522

Dimensions

Diameter317,5 mm12.5 in.
Length overall736,6 mm29.0 in.

Weight

Not equippedkg lb
Equipped46,26 kg102 lb

Performances

Max RPM40 400 t/mn (rpm)
Idle RPM t/mn (rpm)
Thrust at max RPM2847 N640 lb
Thrust max continuous Nlb
Thrust at idle RPMNlb
Pressure ratio5.6 / 1 
Max Flow g/slbs/sec
Max continue EGT deg.C deg.F

Consumption

Consumption  
Specific fuel consumption 0.544 kg/kg/s 1.2 lbs/lb/s