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Old 01-25-2022, 11:44 AM
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DanH DanH is offline
 
Join Date: Oct 2005
Location: 08A
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Not a problem. Air temperatures in the accessory case region rarely exceed 200F in flight for anyone. It may go a bit higher given a hot shutdown, but nowhere near 300, and it doesn't last long.

The big player is radiant heating, not convective, in proximity to exhaust headpipes.
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