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Westinghouse J46
The Westinghouse J46 was an afterburning turbojet engine that was developed to power several United States Navy aircraft in the 1950s. It was intended to power the improved, swept wing, F3D-3 Skyknight (swept-wing version〔(Vectorsite.net: ''F3D Skynight'' )〕 ultimately canceled). It also powered the F2Y Sea Dart and the F7U Cutlass jets, and Walt Arfon's Wingfoot Express〔(Air & Space Magazine,March 01, 2009, Oldies and Oddities: The Bonneville Jet Wars )〕〔(Air & Space Magazine,March 01, 2009, Oldies and Oddities: The Bonneville Jet Wars Photos )〕 land speed-record car.
==Development and Design==
The J46 engine was developed as a larger, more powerful version of Westinghouse's J34 engine, about 50% larger. The Westinghouse model number was a continuation of the "X24C" series of the J34. The model number assigned was X24C10, even though the J46 differed in many design features from the smaller J34. It was seen as a lower development risk than the J40 which was in parallel development at the same time. The development program ran into many problems with this engine, including combustion instability and control issues at altitude.〔(Aero Engines 1954 (1954). ''Flight''. 9 Apr 1954. pg 461 )〕
The engine featured an 12-stage compressor that was driven by two turbine stages on a single spool. The engine also featured an early afterburner, which was a simple "eyelid" design that was actuated by a long control rod that ran the length of the engine.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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