Primary finding
Probable cause
The pilot's failure to maintain directional control during the takeoff roll, which resulted in a runway excursion and ground-loop.
Investigator assessment
Analysis narrative
The pilot reported that, during the takeoff roll in the tailwheel equipped airplane, he felt a gust of wind hit the airplane. When the tail came up, he was unable to maintain directional control and the airplane veered to the right, departed the runway onto rocks, and ground looped. The right wing and fuselage were substantially damaged. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.