Pilot Debrief

KERNS KENNETH H KENS WINGLESS WONDER near Mount Airy, NC — 2017-03-12

Final reportERA17CA129
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Date
2017-03-12
Location
Mount Airy, NC, USA
Airport
MWK
Aircraft
KERNS KENNETH H KENS WINGLESS WONDER
Registration
N7195R
Category
Gyroplane
Highest injury
Minor
Fatalities
0

Probable cause

The pilot’s improper adjustment of the prerotator motor, which resulted in its failure to disengage and the subsequent loss of aircraft control during takeoff.

NTSB narrative

The pilot, who was also the owner of the of amateur-built gyroplane, stated that he adjusted the prerotator motor pressure plate before the flight by moving it closer to the clutch to improve rpm. During takeoff, the gyroplane rolled right, and he was unable to maintain control. The gyroplane subsequently impacted the ground and cartwheeled, which resulted in substantial damage to the rotor, mast, and cabin. The pilot further stated that, due to his adjustment, it was likely that the prerotator did not disengage, which resulted in increased right torque and the inability to control the gyroplane during takeoff.

NTSB coding

Evidence available

  • Photos
  • 2 docket documents
View NTSB final reportView NTSB docket

Docket documents2

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