Accidente de Ka 6 en Munt Müsella resulta en fatalidad

El 24 de agosto de 1964, un planeador Ka 6 se estrelló en Munt Müsella, Suiza, durante un vuelo de cresta alpina. El piloto, un ciudadano alemán con amplia experiencia de vuelo, perdió el control de la aeronave al ejecutar un giro muy inclinado a una altitud insuficiente. El planeador impactó contra la ladera empinada, resultando en la destrucción de la aeronave y la muerte del piloto. La investigación no encontró fallos técnicos en la aeronave, y las condiciones meteorológicas eran generalmente favorables con algunas turbulencias localizadas.

1. Ridge soaring flight: After a winch launch from Samedan and initial thermaling, the pilot proceeded to ridge-soar along the steep northeast face of Munt Müsella at several hundred meters above the airfield.
2. Low height over slope: While flying along the Munt Müsella ridge, the glider was at an altitude that provided insufficient height above the steep slope to safely recover from a stall or upset.
3. Local turbulence and gusts: In the accident area, broken thermals and moderate gustiness existed near the slope, creating variable updrafts that could disturb the glider’s attitude.
4. High-pitch turn initiated: The pilot initiated a steep, nose-high 'hochgezogene Fahrtkurve' to rapidly enter a thermal or updraft near the ridge, bringing the wing close to the critical angle of attack.
5. Stall and departure: During the high-pitch turn, the glider likely reached the critical angle of attack, was affected by a gust, and abruptly stalled and departed into a steep, descending turn with loss of control.
6. Crash - fatal: After about a half to three-quarter turn in the ensuing dive, the glider impacted the steep Munt Müsella slope almost vertically at high speed, destroying the aircraft and killing the pilot.