Flying The Big Engine

Mods changing an airplanes performance, especially its fuel consumption, might not be well-documented.

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By the time a typical aircraft has a few years under its belt, its been modified from what rolled out of the factory. It might be additional or replacement avionics, a climb prop, vortex generators, auxiliary fuel tanks or a more powerful engine. It might be something relatively simple, like a ski tube or an external power port. For example, both my Beech Debonair and the Aeronca Champ Im a partner in have seen performance-enhancing mods since they were new.
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