Pérdida de sustentación fatal del LS 4 durante aterrizaje en campo cerca de Oberdigisheim

Oberdigisheim, Germany Rolladen-Schneider LS 4

El 25 de abril de 2004, un Rolladen-Schneider LS 4 sufrió un accidente fatal cerca de Oberdigisheim, Alemania. El piloto, que tenía aproximadamente 216 horas de experiencia de vuelo, intentó un aterrizaje en campo después de casi una hora de vuelo. Testigos observaron que el planeador entró en pérdida de sustentación y en una barrena a baja altitud, lo que llevó a un impacto casi vertical. El piloto resultó fatalmente herido y el planeador fue destruido. El informe confirmó que la pérdida de sustentación ocurrió debido a una velocidad insuficiente durante la aproximación de aterrizaje.

  1. Cross-country flight: The LS 4 launched by aerotow from Kirchheim/Teck-Hahnweide for a cross-country soaring flight and proceeded uneventfully for nearly an hour.
  2. Lee-side approach path: During preparation for an outlanding near Oberdigisheim, the glider’s approach path ran behind a westward-sloping hillside, placing it in pronounced lee with expected wind shear and increased sink.
  3. Low-speed approach: While setting up the approach to the selected outlanding field, the glider was flown with insufficient airspeed for the conditions.
  4. Stall in low turn: At about 50 m above ground in a turn toward the outlanding field, the glider exceeded its critical angle of attack, stalled, and entered a spin.
  5. Spin unrecoverable: Because of the very low altitude, there was not enough height available to successfully recover from the spin before ground impact.
  6. Crash - fatal: The glider impacted the ground in a steep, nearly vertical attitude on a westward-sloping hillside near Oberdigisheim, fatally injuring the pilot and destroying the aircraft.
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