1971-02-01

Aircraft Carburetor Icing Studies 710371

A study has been made of the effect of gasoline icing inhibitors on aircraft carburetor icing. An engine test was developed and used to evaluate various types of inhibitor. The results obtained showed that aircraft carburetor icing can be prevented by the inclusion of additives in the gasoline.The use of a Teflon-coated throttle plate to prevent ice adhesion was studied, and it was found that virtually all ice formation on the plate was eliminated. The Teflon-coated plate and the use of ethylene glycol monomethyl ether at 0.10-0.15% by volume in the gasoline were shown to prevent both carburetor and fuel system icing.

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