Ka-8B Kollision mit Baum während des Anflugs in Saanen bei widrigem Wetter

Saanen, Switzerland Alexander Schleicher K 8 B

Am 5. Juli 1972 endete ein Solo-Trainingsflug in einer Alexander Schleicher Ka-8B mit einer Kollision mit einem Baum in der Nähe von Saanen, Schweiz. Der Pilot, der über begrenzte Flugerfahrung verfügte, kehrte zum Flugplatz zurück, als widrige Wetterbedingungen, einschließlich Regen und starker Böen, die Sicht und Kontrolle beeinträchtigten. Das Heck des Segelflugzeugs traf Stromleitungen, bevor es in einem Baum stecken blieb. Der Pilot blieb unverletzt, aber das Flugzeug erlitt erhebliche Schäden. Der Vorfall wurde auf das Versäumnis des Piloten, die Bremsklappen einzuziehen, und seine begrenzte Erfahrung in alpinen Bedingungen zurückgeführt.

  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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