Amateur/Home Built/Experimental
Flight Crew Sport / Recreational
Flight Crew Last 90 Days 25; Flight Crew Total 1009; Flight Crew Type 53
Human-Machine Interface; Other / Unknown
Aircraft Equipment Problem Less Severe; Ground Event / Encounter Ground Strike - Aircraft; Ground Event / Encounter Loss Of Aircraft Control; Ground Excursion Runway
Aircraft Aircraft Damaged; General Flight Cancelled / Delayed
Human Factors
Departing on Runway XX. On takeoff roll Rotor blade speed decreased (increasing speed expected). Attempted to increase rotor speed via back stick control. Aircraft veered left off of the runway. Aircraft came to a stop on the side of the runway embankment. Rotor/prop blades damaged. No injuries resultedPilot response to a rotor speed decrease indication was inappropriate. (It appears that the rotor speed indication failure is a cause contributor). Pilot added too much back pressure on the controls too early in the takeoff roll. Proper pilot response would be to reduce power and abort the takeoff.
Gyroplane pilot reported loss of control during takeoff roll resulting in runway excursion.