Accident Details
The pilot reported that before takeoff from a 1,700 ft dirt airstrip with a density altitude of 9,200 ft, the flaps were set to 20°. He held the brakes and ran the engine to full power, then released the brakes and pulled back on the yoke. The airplane accelerated, but the takeoff roll "seemed longer and slower than usual." About two-thirds of the way down the runway, the airspeed was 45 knots. Near the end of the runway, the airplane momentarily became airborne about 15 ft above the ground, drifted to the right, and settled back onto the ground. The airplane struck a sage bush, skidded left, the left landing gear collapsed, and the left wing impacted terrain.
Damage
The airplane sustained substantial damage to the left wing and left elevator.
Mechanical Status
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.