Kollision einer Standard Libelle mit Stromleitungen bei Außenlandung nahe Küssnacht, Schweiz
Am 6. Mai 1972 kollidierte eine Glasflügel Standard Libelle bei einer Außenlandung nahe Küssnacht, Schweiz, mit Stromleitungen. Der Pilot war vom Flugplatz Buttwil gestartet und traf auf unzureichende Thermik, was zur Entscheidung führte, in einem Feld zu landen. Während des Anflugs traf der linke Flügel des Segelflugzeugs eine Stromleitung, was erhebliche Schäden am Flugzeug verursachte. Der Pilot erlitt leichte Verletzungen, und es gab nur minimalen Drittschaden. Der offizielle Bericht führt den Vorfall auf einen unzufriedenstellenden Landeanflug zurück.
- Aerotow cross-country: The pilot aerotowed from Buttwil and then thermaled up to about 1400 m before gliding south of the Lindenberg in search of better lift.
- Weak thermals en route: Despite flying toward the Rooterberg and then Meggen under cumulus clouds, the pilot found no significant thermals and descended to about 1100 m MSL.
- Short, obstructed field: The pilot selected a roughly 180 m by 37 m mown field for an outlanding that was flanked on both sides by overhead power lines near Hinter-Barbrämen.
- High, misjudged approach: During the outlanding circuit at about 150 m AGL, the pilot turned onto final too early, resulting in an approach that was too high toward the short field.
- Tight corrective turn: To lose height, the pilot flew a full left 360 about 250 m before the field, but flew the circle poorly so the glider yawed and skidded left on rollout.
- Wing strikes power line: Still in a skid, the glider overflew houses and the left wing leading edge struck an overhead electrical line and insulator about 8 m above ground.
- Crash - minor injury: After briefly regaining level attitude, the glider impacted the ground hard around 1215, causing serious aircraft damage and minor injury to the pilot.