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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
TypeSingle-shaft turbojet
Nb. built522


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


Not equippedkg lb
Equipped46,26 kg102 lb


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


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