Accident Overview
A pilot initiated a takeoff from an open field with a takeoff area of approximately 750 feet. During the takeoff roll, the pilot became aware that the aircraft might not clear a three-foot-high ditch berm located at the departure end of the takeoff area. Despite this uncertainty, the pilot continued the takeoff attempt. Subsequently, both main landing gear assemblies were torn from their mounts when the aircraft collided with the berm.
Pilot's Decision Making
The pilot had not performed any pre-takeoff performance calculations prior to the attempt. The decision to use the field was based on the knowledge that a Piper Super Cub had successfully taken off from the same location in the past. The pilot assumed the aircraft would become airborne within the available distance, but did not account for the specific performance characteristics of the aircraft being flown.
Environmental Conditions
The density altitude at the time of the accident was approximately 4,740 feet. This condition, which affects aircraft performance, was not considered in the pilot's pre-flight planning.
Damage
The collision with the berm caused both main landing gear to separate from their mounting points. No other damage is specified in the report.