Colisión del Ka 8 B con un granero durante aterrizaje en campo en Schüpfheim, Suiza
El 22 de julio de 1971, un Alexander Schleicher K 8 B experimentó un aterrizaje brusco en un terreno inadecuado cerca de Schüpfheim, Suiza. El piloto, al intentar un aterrizaje en campo, colisionó con un granero después de aterrizar en un campo ondulado. A pesar de las difíciles condiciones de aterrizaje, el piloto resultó ileso. Sin embargo, el planeador sufrió daños significativos, incluyendo alas rotas y una cabina destrozada. El incidente se atribuyó a la selección de un sitio de aterrizaje inapropiado.
- Cross-country flight: The pilot aerotowed from Saanen and flew a cross-country task toward Schüpfheim to complete the FAI silver distance.
- Unsuitable field chosen: Arriving over Schüpfheim, the pilot selected a small grass field west of the Kleine Emme for an outlanding, not recognizing that it lay at the foot of a slope with uneven surface.
- Better fields overlooked: The pilot disregarded or did not recognize the clearly more suitable landing options in the flat valley floor east of the river, instead committing early to the hilly, obstacle-rich terrain to the west.
- Steep fast approach: Because of the descending terrain toward the chosen field, the pilot flew a steep final approach and touched down with high speed on the short, uneven grass strip.
- Bounce on uneven ground: During the rollout the glider bounced over two ground undulations, dynamically overloading the left wing spar and degrading directional control.
- Outlanding - damage: About 127 meters after first touchdown the glider collided with a barn with its right wing, heavily damaging both wings and the canopy while the pilot remained uninjured.