LS3-17-Absturz bei Egerkingen führt zu tödlichem Unfall des Piloten

Egerkingen, Switzerland Rolladen-Schneider LS 3-17

Am 10. August 1980 stürzte ein Rolladen-Schneider LS3-17 Segelflugzeug in der Nähe von Egerkingen, Schweiz, ab. Der Pilot war vom Flugplatz Birrfeld gestartet und plante einen Rundflug nach L'Auberson. Nach 1 Stunde und 28 Minuten Flugzeit sank das Segelflugzeug plötzlich aus etwa 100 Metern Höhe ab und stürzte ab, was zur Zerstörung des Flugzeugs und tödlichen Verletzungen des Piloten führte. Der offizielle Bericht führt den Unfall auf das Fliegen unterhalb der minimalen sicheren Geschwindigkeit in geringer Höhe zurück, wobei mögliche beitragende Faktoren das Verhalten des Piloten und mögliche physische oder psychische Beeinträchtigungen umfassen.

  1. Cross-country cruise: After aerotow release from Birrfeld, the pilot conducted a cross-country soaring flight toward the Jura, progressing slowly and often struggling to gain height.
  2. Low, marginal soaring: In the Egerkingen area the glider was flying in weak thermals at low altitude, with the pilot having difficulty maintaining or gaining height.
  3. Reluctance to outland: Despite several suitable outlanding fields being available near his low-altitude track, the pilot continued the flight instead of committing to an off-field landing, possibly influenced by the lack of a trailer for retrieval.
  4. Continued low flight: At low height the pilot flew about 4.5 km straight ahead past Kappel and over the Egerkingen industrial area without configuring for landing and without selecting an outlanding field.
  5. Speed below stall: While flying straight ahead at approximately 100 m above ground, the glider’s airspeed dropped below the minimum flying speed.
  6. Stall and spin entry: The glider abruptly rolled left, entered a spin (vrille), and began descending rapidly with one to two turns from the low altitude.
  7. Crash - fatal: The pilot partially arrested the spin but, lacking sufficient height to recover fully, the glider impacted a maize field and was destroyed, fatally injuring the pilot.
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