What happened
The incident occurred during the departure phase of flight from an unimproved grass strip. As the aircraft accelerated for takeoff, the pilot encountered a significant hump on the runway surface. This obstruction caused the airplane to become airborne prematurely, before reaching the intended rotation speed or altitude.
Attempting to maintain the climb profile and continue the takeoff, the pilot flew toward a line of trees. The aircraft struck these trees during the initial climb segment. Following this impact, the pilot was forced to execute an emergency landing in an adjacent open field.
The terrain of the landing site proved challenging for the recovery attempt. The ground in the field was soft, which affected the structural integrity of the landing gear upon touchdown. Specifically, the nose gear sank deeply into the soft earth during ground contact. This loss of support caused the aircraft to pitch forward violently, resulting in a nosing-over maneuver that left the airplane in an inverted position.