Colisión del Ka-8B con un árbol durante la aproximación en Saanen en medio de mal tiempo

Saanen, Switzerland Alexander Schleicher K 8 B

El 5 de julio de 1972, un vuelo de entrenamiento en solitario en un Alexander Schleicher Ka-8B terminó en una colisión con un árbol cerca de Saanen, Suiza. El piloto, que tenía experiencia de vuelo limitada, regresaba al aeródromo cuando las condiciones meteorológicas adversas, incluyendo lluvia y fuertes ráfagas, afectaron la visibilidad y el control. La cola del planeador golpeó líneas eléctricas antes de quedar atrapada en un árbol. El piloto resultó ileso, pero la aeronave sufrió daños significativos. El incidente se atribuyó a la falta del piloto para retraer los frenos de aire y su limitada experiencia en condiciones alpinas.

  1. Aerotow local soaring: The pilot departed Saanen by aerotow in a Ka-8B for a first solo training flight in the area and released near Hornberg to soar locally.
  2. Deteriorating weather: Showers and thunderstorms developed with rain, cloud build-up, and increasingly strong, variable winds in the Saanen area.
  3. Low pilot experience: The pilot had limited total flight time and relatively little experience on type and in alpine soaring conditions.
  4. Late decision to return: Despite the worsening weather, the pilot decided relatively late to break off the flight and return to Saanen from about 2300 m altitude.
  5. High-speed descent with brakes: During the descent toward Saanen the pilot flew at about 130 km/h with airbrakes extended, experiencing rain and strong turbulence.
  6. Forgot to retract airbrakes: While turning right onto final for runway 26 in turbulent, rain-reduced conditions, the pilot, distracted by the gusts and visibility issues, forgot to retract the airbrakes.
  7. Crash - no injury: On short final the glider’s tail struck the Montreux–Oberland railway overhead line and the aircraft came to rest heavily damaged in a tree about 3 m above ground, with the pilot uninjured.
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