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Firewall Forward max weight reasoning?

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SamP

Well-Known Member
Joined
Nov 4, 2016
Messages
94
I’m trying to understand what drives the maximum firewall forward weight. Since the Engine is cantilevered, I am assuming that one component is simply the stress on the engine mount. If this is the case, then an airframe max g could be derated.

Another factor is elevator control authority. This has more to do with cg, and other components could be redistributed to keep it within the envelope.

are there other things to consider? I’ve been reading about engines that exceed FWF max weights. As always, it’s probably best to follow the aircraft manufacturer’s recommendation.
Thanks
 
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