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The afterburner was developed by Solar Aircraft, the first U.S. ĭeveloped during the transition from piston-engined aircraft to jets, the J34 was sometimes fitted to aircraft as a supplement to other powerplants, as with the Lockheed P-2 Neptune and Douglas Skyrocket (fitted with radial piston engines and a rocket engine, respectively). However, equipped with the J34 instead of its intended engines, it was seriously underpowered and could not exceed Mach 1 in level flight. The Stiletto was developed to investigate the design of an aircraft at sustained supersonic speeds.
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For instance, the Douglas X-3 "Stiletto" was equipped with two J34 engines when the intended Westinghouse J46 engine proved to be unsuitable.
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Built in an era of rapidly advancing gas turbine engine technology, the J34 was largely obsolete before it saw service, and often served as an interim engine.