DG-200 Zwischenfall beim Windenstart auf dem Flugplatz Fricktal Schupfart
Am 22. August 1982 ereignete sich ein Zwischenfall mit einer DG Flugzeugbau DG-200/17 beim Windenstart auf dem Flugplatz Fricktal Schupfart in der Schweiz. Während des Starts geriet das Segelflugzeug in einen Strömungsabriss und stürzte aus einer Höhe von etwa 20-30 Metern ab, was zur Zerstörung des Flugzeugs führte. Der Pilot erlitt schwere Verletzungen. Die Untersuchung ergab, dass der Pilot ohne ausreichende Geschwindigkeitsreserve in den Steigflug überging und eine mögliche unzureichende Windenbeschleunigung zum Unfall beigetragen haben könnte.
- Winch launch takeoff: During a winch launch from runway 08, the glider began its ground roll and initial liftoff with the pilot immediately sensing that acceleration was unusually slow.
- Suboptimal configuration: For the winch launch the glider was not in the recommended configuration, with flaps at 0° instead of +4° and only slightly nose-heavy trim, reducing longitudinal stability and climb margin.
- Possible weak acceleration: The winch, operated by a relatively inexperienced winch driver, may not have provided optimal acceleration, leading to a prolonged low-height, low-speed segment after liftoff.
- Climb initiated low speed: After a long, shallow flight just above the ground and only a slight increase in speed, the pilot began to raise the nose into climb without an adequate speed reserve.
- Pitch and roll corrections: At about 2–3 m AGL the pilot briefly pushed to gain speed, then slowly pulled back to climb and applied right aileron when the glider started to roll left.
- Stall and wing drop: Approximately 20–30 m above ground, the glider stalled and departed controlled flight, dropping almost vertically over the right wing despite the pilot’s correction.
- Crash - serious injury: The right wing struck the ground first, followed by the nose impact, destroying the glider and seriously injuring the pilot, with the wreckage coming to rest about 190 m from the start point.