General Electric GE-36

General Electric GE36

I had the constitution that put a turbofan and a propjet together with the plane engine of the experiment stage when the GE36 engine was developed by General Electric aircraft engines, and or "Ann ducted fan" was called "propfan" (Unducted Fan;UDF).

This engine was developed from masterpiece machine General Electric F404 military use turbofan adopted in F/A-18. I was exhausted as if mixed exhaust stream from F404 driving seven steps-type low-pressure turbine. I was not fixed, and, with the low-pressure turbine, the ring where I attached a stator to could turn freely and turned to a bucket and objection. Came to pace-type variableness one set, and, among rotor blades of the outside installation, the fan braid was connected with bucket system of the low pressure turbine, and pro-the stator of the low pressure turbine which turned to reverse, a different set was connected.

Because a rotor blade became the shape representing the arc of the Siam seal type, the outbreak of the shock wave in the propeller edge that obstacled at the time of a high-speed flight was restrained, and a high speed flight (about Mach number 0.75) was accomplished. GE drove a rotor blade using 14 steps of low-pressure turbines in substitution for constitution to combine the slowdown with the gearbox with a low-pressure turbine of rotating at high peed of before (effectively).

Adoption to Boeing 7J7 (only as for the plan) and MD-94X which were a passenger plane of the 150 seats grade was considered in the 1980s. Even if an engine was installed in the rear tailpiece, the level of the noise to reach the cabin by airplane which I attached an examination engine to although it was demonstrated that it was extremely the low mileage was still a problem.

Footnote

• Flight International (July 12, 2007). "Whatever happened to propfans?". July 14, 2007 reading.

Outside link

• "Green sky thinking - carbon credits and the propfan comeback?", Flight International, June 12, 2007.

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