Investigation of operating characteristics of an engine equipped with modifications to eliminate fuel-evaporation icing

Mulholland, Donald R., Zlotowski, Edward D.

Two modified fuel-injection systems, a drilled-inducer type and a spinner type, that prevent serious fuel-evaporation icing were installed on a V-type, liquid-cooled aircraft engine and a preliminary investigation was conducted to determine the effect on engine operating characteristics. The spinner system was also ground- and flight-tested on a twin-engine fighter airplane. Flight measurements of cylinder-head temperatures over a range of fuel-air ratios and engine power conditions were made at an altitude of approximately 10,000 feet.

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