Collision du Morelli M-100-S avec des lignes électriques lors d'un atterrissage en campagne près de Bedano

Le 12 avril 1971, un incident impliquant un Morelli M-100-S s'est produit près de Bedano, en Suisse. Lors d'une tentative d'atterrissage en campagne, le pilote est entré en collision avec des lignes électriques, ce qui a suspendu le planeur. Le pilote est resté indemne, mais le planeur a subi des dommages importants, notamment à l'aile gauche et au fuselage. La collision a également endommagé une ligne électrique de 380 V, entraînant une coupure de courant temporaire. Le rapport officiel attribue l'incident à la décision tardive du pilote d'atterrir en campagne et à une prise en compte insuffisante des conditions de vent locales.

1. Aerotow cross-country: After aerotow departure from Calcinate at 10:40, the pilot flew north toward Monte Ceneri and then turned back intending to continue toward Agno and return to the departure airfield.
2. Strong sink encountered: While attempting to reach Agno, the glider entered strong descending air of about 2–3 m/s, rapidly reducing altitude and making continuation to an airfield unlikely.
3. Late outlanding decision: The pilot delayed the decision to perform an outlanding until he was already low, leaving only a very limited choice of fields in a densely built-up, wire‑obstructed valley.
4. Tailwind and high groundspeed: The pilot did not adequately account for the strong southerly wind, resulting in a significant tailwind and high groundspeed on approach to the chosen field.
5. Attempted landing in small field: The pilot committed to landing in a short, narrow field near Tavaro‑Bedano and had to overfly the field while maneuvering to avoid buildings and power lines up to about 10 m high.
6. Collision with power line: During the landing turn with tailwind and low height, the glider lost further altitude and struck an electrical line, becoming caught by the cable and suspended.
7. Outlanding - damage: The glider remained suspended from the power line near Bedano, sustaining major wing and fuselage damage and damaging the electrical and telephone lines, while the pilot was uninjured.