Primary finding
Probable cause
The pilot’s failure to maintain directional control on takeoff. Contributing to the accident was the aircraft design that did not incorporate differential braking.
Investigator assessment
Analysis narrative
The pilot reported that he was departing with a mild right crosswind in the amateur-built, steerable tailwheel-equipped airplane, without differential braking. After initiating his takeoff roll, the airplane began to drift to the left and he was unable to correct. The airplane exited the runway and struck a sign, which resulted in substantial damage to the left wing. Postaccident examination of the airplane by an FAA inspector revealed no evidence of any preaccident mechanical malfunctions or failures with the airplane’s tailwheel or brake system that would have precluded normal operation.