Takeoff and Initial Climb
The pilot completed the engine run-up and takeoff checklist, then set 10 degrees of flaps for departure from a 2,000-foot grass runway. Rotation was performed at 65 knots, and the pilot reported that "the airplane lifted off fine."
Loss of Performance
As the trees at the runway's end approached, the pilot stated that "the airplane suddenly felt like it needed help, the control yoke felt sloppy and the stall warning light came on." Airspeed dropped to 60 knots, and lift continued to deteriorate. The pilot was concerned that lowering the nose to accelerate would prevent clearing the trees.
Pilot Actions
The pilot informed the passenger that they would be going into the trees. He spotted an opening he believed the fuselage could pass through and "fully stalled the airplane." The pilot reported that engine power was never lost.
Relevant Handbook Information
The Owner's Handbook specified that for short/soft field takeoffs with obstacle clearance, flaps should be set to 25 degrees. Additionally, a takeoff chart indicated that a 2,000-foot runway was required to clear a 50-foot obstacle under the existing environmental conditions.