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D328 prop ?

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chperplt

Registered User
Joined
Nov 25, 2001
Posts
4,123
Under the engine, just aft of center (at least the right one) there is a moving door that opens and closes in flight.. What the heck is it?
 
If it is like the ATR, the doors are thermally operated and regulate the amount of air traveling over the oil cooler. Maybe something else though.;)
 
Oil Cooler

Tim47SIP is correct.
 

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