J46-WE-8 J46-WE-8A This variant powered the F7U-3 Cutlass and produced 5,500/5,800 lbf of A/B thrust. Intended for the Douglas F3D-3 SkyKnight but did not go into production because of schedule slippage and the F3D-3 cancellation. Failed to exit testing due to thrust shortfalls. Variants Maintenance on the J46s of a F7U Cutlass aboard USS Hancock (CVA-19), 1957 J46-WE-2 J46-WE-3 3,980 lbf (18.15 kN) thrust Was to be used the Douglas X-3 Stiletto. This was abandoned when the electronic control could not be made acceptably reliable the final afterburner was an "ON/OFF" unit. The original design, using an electronic control system, would have allowed continuous adjustment of afterburner thrust from minimum to maximum. The same long control rods now pushed or pulled a ring that ran on rollers, which in turn opened or closed the iris. By the time the engine reached production, the rear nozzle had an iris-type "petal" design. Early development engines included a simple "eyelid" afterburner, actuated by control rods that ran the length of the engine. The engine's 12-stage compressor was driven by two turbine stages on a single shaft.
The development program ran into many problems with this engine, including the original electronic control system, compressor/turbine mismatches, combustion instability and control issues at altitude leading to compressor stalling The produced -8, -8A and -8B engines were all derated from the original design specification on both thrust and specific fuel consumption. It was seen as a lower development risk than the Westinghouse J40 which was in parallel development at the same time. The model number assigned was X24C10, even though the J46 differed in many design features from the smaller J34. The Westinghouse model number was a continuation of the "X24C" series of the J34. The J46 engine was developed as a larger, more powerful version of Westinghouse's J34 engine, about 50% larger. It also powered the F2Y Sea Dart and the F7U Cutlass jets, and Walt Arfon's Wingfoot Express land speed-record car. It was intended to power the improved, swept wing, F3D-3 Skyknight (swept-wing version ultimately canceled).
The Westinghouse J46 is an afterburning turbojet engine that was developed to power several United States Navy aircraft in the 1950s. Westinghouse Aviation Gas Turbine Division
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