Comment by DiggyJohnson
1 year ago
/s? A generator or alternator powered directly by the engines is more efficient than towing a wind vane (still indirectly powered by the engines and/or the potential energy of the airplane) every single time.
This discussion has nothing to do with engine out failure modes.
> This discussion has nothing to do with engine out failure modes.
The 787's APU is not intended to run during flight. If it's running, you're in an engines-out scenario.