AAIB investigation to Wingcopter 178 Heavylift, UAS, registration n/a
Loss of control due to ESC overheating, Mayfield Farm, Ilsley Road, Compton, Newbury, 4 September 2020
Summary:
Whilst the unmanned aircraft (UA) was climbing, in hover mode, one of the rear electronic speed controllers (ECSs) overheated causing a loss of control of its associated motor and propeller. Control of the aircraft was lost and it fell into a crop field, damaging it beyond economical repair. The manufacturer is looking to re-design the rear propellers to reduce the likelihood of the ESCs overheating.
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