Incident Overview
A pilot reported that during the takeoff roll, the aircraft was rotated at 65 knots but failed to become airborne. The pilot then aborted the takeoff; however, the aircraft could not be stopped on the remaining runway. After departing the runway, the aircraft struck a ditch and nosed over.
Examination Findings
A post-incident examination of the flight controls and engine revealed no evidence of a malfunction or failure. The elevator trim tab was found at a 9-degree nose down trim position. According to the pilot's report, the normal elevator trim for takeoff corresponds to a 3-degree nose down position.