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Aviat, Aviation Foundation unveil concept CNG-fueled single-engine aircraft

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and Minneapolis-based Aviation Foundation of America, Inc. The only modification made to the engine, a Lycoming IO-360-A1 D6, was the installation of new pistons to increase the compression ratio from 8.50:1 The 200 hp Lycoming four-cylinder engine power the aircraft with a cruise speed of 143 mph. Aviat Husky CNG.

Engine 236