Incident de DG-200 lors d'un lancement au treuil à l'aérodrome de Fricktal Schupfart
Le 22 août 1982, un DG Flugzeugbau DG-200/17 a connu un incident de lancement au treuil à l'aérodrome de Fricktal Schupfart en Suisse. Pendant le lancement, le planeur a décroché et s'est écrasé d'une hauteur d'environ 20-30 mètres, entraînant la destruction de l'appareil. Le pilote a subi des blessures graves. L'enquête a révélé que le pilote est passé en montée sans réserve de vitesse suffisante, et un manque possible d'accélération optimale du treuil pourrait avoir contribué à l'accident.
- 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.