Incidente de aterrizaje del Ka 6 en La Joux Perret resulta en daños severos
El 3 de junio de 1972, un piloto volando un Alexander Schleicher Ka 6 E despegó de Courtelary para un vuelo triangular. Tras encontrar una disminución en la sustentación, el piloto optó por un aterrizaje en campo en La Joux Perret, Suiza. Durante la aproximación de aterrizaje, un ligero giro a la derecha cerca del suelo hizo que la punta del ala izquierda tocara el suelo, causando un trompo y daños severos al planeador. El piloto resultó ileso y no hubo daños en el suelo. El informe oficial confirmó que el accidente fue causado por un giro ejecutado a una altitud insuficiente.
- Cross-country cruise: After aerotow departure from Courtelary, the pilot flew cross-country via Chasseral, St-Imier, Renan and La Cibourg on a planned triangular task.
- Lift conditions cease: When the thermals/ascendances stopped near La Joux Perret, the pilot could no longer sustain soaring flight and had to plan an outlanding.
- Slight tailwind: The selected landing direction in the field involved a light tailwind of about 2–3 knots, although the direction was later judged acceptable.
- Field landing approach: The pilot conducted a normal approach into the chosen field, successfully overflying an electrical line and then noticing that the first part of the field sloped uphill.
- Low-altitude right turn: To align with the uphill slope, the pilot made a slight flat right turn at very low altitude just before touchdown.
- Left wingtip strikes: During this low-altitude turn, the left wing contacted the ground, initiating a ground loop (cheval de bois).
- Outlanding - damage: The glider ground-looped and its tail broke, causing serious damage to the aircraft but no injuries to the pilot and no damage on the ground.