Many GA a/c are restricted to operations above a certain temperature. In my
case (Zlin 242L) the restriction is -20C at sea level and goes down to -40 C
(or F) at 9000 feet. But, the POH doesn't say why. Anybody know?


Yes. Any colder than that and you freeze your ass off, moving the CG too far
forward and out of the operating envelope.
G


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