Mucha 100-A Vorfall bei Samedan: Pilot bei Strömungsabriss und Absturz verletzt

Samedan, Switzerland PZL Bielsko SZD-12A

Am 30. Juli 1960 stürzte ein Mucha 100-A Segelflugzeug in der Nähe von Samedan, Schweiz, ab, nachdem es während einer Kurve in einen Strömungsabriss geriet. Der Pilot, der nur begrenzte Erfahrung mit dem Flugzeug hatte, führte einen Alpenflug durch, als das Segelflugzeug ins Trudeln geriet und auf den Hang prallte. Der Pilot erlitt schwere Verletzungen, überlebte jedoch, während das Segelflugzeug zerstört wurde. Die Untersuchung hob die unzureichende Erfahrung des Piloten und die unzureichende Schulung auf dem Hochleistungssegelflugzeug als beitragende Faktoren hervor.

  1. Winch launch climb: The pilot launched by winch from Samedan airfield and climbed to an almost 400 m height above the field.
  2. Low pilot experience: The pilot had only about 17 flight hours total and minimal prior time on the Mucha 100-A, without thorough conversion training to this higher-performance glider.
  3. Demanding aircraft traits: The Mucha 100-A was a modern performance glider with relatively poor stall warning in turns and reduced acoustic and visual speed cues, placing higher demands on pilot skill.
  4. Ridge soaring Muottas: After gaining height in ridge lift at Muottas Muragl, the pilot flew along the ridge crest about 50–80 m above ground near the Kulmhotel.
  5. Stall in left turn: While initiating a left turn from the ridge toward the valley, the glider’s speed dropped below the safe minimum and it abruptly rolled off over the left wing.
  6. Unrecovered spin: Following the stall, the glider entered a spin and, with insufficiently effective recovery, continued for nearly two turns toward the hillside.
  7. Crash - serious injury: After almost two turns of spin, the glider impacted the west slope of Muottas Muragl around 1402, seriously injuring the pilot and destroying the aircraft.
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