Accident Details
An aerial observation mission was underway when the passenger became ill, prompting the pilot to land on a hard-packed strip across a plowed field. After landing, the pilot walked the area to assess its suitability for a subsequent takeoff. He noted a rut at about midfield but perceived that, aside from that rut, there would be no problem in taking off again.
Sequence of Events
The pilot decided to stay to the left while in the vicinity of the rut during the takeoff. He also selected a 'point-of-no-return' and an abort point. A short time later, he began the takeoff using soft field procedures. However, when he reached his abort point, the airspeed was decreasing instead of increasing. He aborted the takeoff but was unable to stop before hitting a level at the end of the field.