ZeroAvia Power Loss Could Lead To Tighter UK Rules On Experimental Testing

AAIB
Back voltage from the windmilling propeller locked out the electric motors and caused the April 2021 forced landing of ZeroAvia’s hydrogen propulsion testbed.
Credit: UK AAIB
Tightening of rules under which experimental aircraft are test-flown in the UK has been recommended following investigation of the April 2021 forced landing of a hydrogen fuel-cell propulsion testbed flown by U.S./UK startup ZeroAvia. The findings could affect the flight testing of new concepts in...

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