PROPFAN ENGINE, FUTURE STUDY MODEL

To solve the oil crisis of the 1970s, research began on a new engine for passenger aircraft that would take advantage of the fuel economy of turboprop engines while increasing speeds to the same level as turbofan engines.They have been called various names such as PROPFAN, OPEN ROTOR, UNDUCTED FAN and ULTRA-HIGH BYPASS engine, but I think they need to be unified first.Among them, the following two models underwent flight tests in the 1980s, and achieved some success. ・GE36(GE+NASA)・・Turbine typ…

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