Accidente de Ka 6 durante aterrizaje en campo cerca de Neuendorf, Suiza

El 18 de agosto de 1967, un Alexander Schleicher Ka 6CR estuvo involucrado en un incidente de aterrizaje en campo cerca de Neuendorf, Suiza. El piloto, que participaba en una competición nacional de vuelo a vela, encontró condiciones de viento deterioradas en el tramo de regreso de un vuelo de travesía. Al intentar aterrizar en un campo, el planeador entró en un picado pronunciado y se estrelló. El piloto sufrió heridas graves y el planeador fue destruido. El informe oficial sugiere que el piloto probablemente evaluó incorrectamente las condiciones del viento, lo que llevó al accidente.

1. Aerotow cross-country: The pilot aerotowed from Birrfeld for a competition cross-country to Courtelary and then began the return leg along the first Jura ridge.
2. Late-day weakening lift: As the day progressed, shading of the south Jura slopes caused the thermals to weaken, forcing the pilot progressively lower on the return leg.
3. Low altitude near ridge: Around Gensingen the pilot was already down to about 300 m above ground and later continued east with only 80–100 m AGL near Egerkingen/Neuendorf while still trying to progress.
4. Turbulent shifting winds: Near the intended outlanding area there were gusty northwesterly winds and possible local fall winds from the Jura, creating turbulent, changing wind conditions close to the ground.
5. Turn to landing direction: At low height the pilot turned left from a downwind/base-like leg to align with his chosen landing direction between the railway and the autobahn.
6. Stall and nose drop: While turning in turbulent tailwind conditions, the glider was likely over‑pitched to hold the ground track, the inner wing stalled, and the aircraft abruptly pitched nose-down into a steep 45° dive with no effective recovery control inputs observed.
7. Crash - serious injury: The glider impacted the field left wing first, overturned, and came to rest inverted about 65 m from the railway line, seriously injuring the pilot and destroying the aircraft.