Quote:
Originally Posted by slodave
I doubt it in hot conditions. After you turn the engine off, the fan isn't moving anymore and the engine temp rises quite a bit really fast. I questioned my dad about the practice of cooling down the engine (turbo) in his plane. I mentioned about the sudden rise after engine shutdown. It does spike. A lot of his engine is logged and can be reviewed on a computer later.
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I know you can harm a light airplane engine and cause cracking around injectors and such by pulling power and descending while full rich. I figured if the engine ( my 911's ) was in static air then no harm could come of it. I guess by opening the lid you increase the convective cooling flow quite a bit though.