What happened
During an approach for runway 21, a glider entered a left base and turned final approximately 3,000 to 4,000 feet from the runway at an altitude of about 800 feet agl. The pilot-in-command, acting as a certified flight instructor (CFI), instructed the student pilot to deploy the spoilers to descend to the glideslope while maintaining a pattern speed of 50 knots.
The CFI subsequently took control of the aircraft after the glider began to sink rapidly, with airspeed dropping to 43 knots. Although the spoilers were closed, the aircraft was too low to successfully reach the intended touchdown point. The pilot attempted a descending right turn to avoid obstacles, but the only available landing area was a small pasture less than 300 feet in length, bordered by a ditch and trees at the far end.
The aircraft stalled approximately 2 to 3 feet above the ground while still in a turn with the right wing slightly down. The glider pivoted on its right wingtip and came to a stop within about 60 feet. There were no injuries reported in the incident.