Accident Overview
A pilot was conducting a short-field takeoff in a tailwheel-equipped airplane for both practice and as a demonstration to a passenger. The pilot intended to climb out at the airplane's best angle of climb airspeed of 48 mph. He noted that the airspeed indicator was not accurate at low airspeeds, stating that an indicated airspeed of 40 mph corresponded to a true airspeed of 50 mph.
Pre-Takeoff Preparation
Before departure, the pilot selected 20 degrees of flaps. During the run-up and while aligning the airplane on the runway, he observed that the wind direction varied. As the takeoff roll commenced, the wind shifted to a direct headwind. The pilot initiated rotation at an indicated airspeed of 40 mph and maintained that airspeed after liftoff.
Inflight Event and Loss of Control
After reaching an altitude of 150 feet above ground level, the airframe began to shudder. The airplane then started to descend. In response, the pilot applied forward elevator control in an effort to regain control. After doing so, the runway came into view. Concerned about a possible collision with the ground, the pilot released elevator pressure. Subsequently, the airplane settled just left of the runway, ground looped, and came to rest on its nose.
Post-Accident Observations
The pilot stated that the accident could have been avoided if he had increased the takeoff airspeed to counter the wind conditions and applied more down elevator pressure during the recovery. The airplane sustained substantial damage to both wings. The pilot reported no preimpact mechanical malfunctions or failures with the airframe or engine that would have precluded normal operation.