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Published on Mar 12, 2012
This is the O.S. GT33 gasoline engine, undergoing a computer-controlled thrust test, with an APC 18X8 propeller. Data collected from this test and similar tests with seven other propellers will be used to support a review article to be published in the near future in RC Sport Flyer magazine. The engine turned the APC 18X8 propeller at 8,875 RPM, producing 20.2 lb thrust.