Quote:
Originally Posted by LittleBlackDuck
As a private pilot I can assure you that carburetor heat is only used during low throttle periods such as approaching to land or flying in extremely cold conditions. It's sole purpose is to prevent carb ice. Using carb heat in cruise is a recipe for engine damage due to detonation.
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I got quite surprised when I figured out that some older cropdusters were having the carburettor heat removed and, despite the possibility of using some alcohol-based de-icing fluid and the success of dedicated-ethanol variants of the Embraer Ipanema, no other provision to overcome carburettor icing is fitted to them. BTW have you ever experienced a situation when you effectively had to rely on a carburettor de-icing or anti-icing method?