Takeoffs that could not be located:

• Unknown takeoff — no linkable takeoff on flightlog.org (163 flights)
• Annecy, Montmin, Col de la Forclaz — outside the curated takeoff dataset (8 flights)
• Col de Forclaz- Montmin — outside the curated takeoff dataset (2 flights)
• Les Saisies - Bisanne — outside the curated takeoff dataset (5 flights)
• Plaine Joux — outside the curated takeoff dataset (1 flight)
• Annecy, Talloires, Planfait — outside the curated takeoff dataset (2 flights)
• Col Agnel, Molines-en-Queyras — outside the curated takeoff dataset (1 flight)
• Marlens, Annecy — outside the curated takeoff dataset (3 flights)
• La Clusaz, Crêt du Loup — outside the curated takeoff dataset (3 flights)
• Valle de Bravo, El Peñon — outside the curated takeoff dataset (12 flights)
• Valle de Bravo, La Torre "Torres" — outside the curated takeoff dataset (1 flight)
• Chamonix — outside the curated takeoff dataset (1 flight)
• Montlambert — outside the curated takeoff dataset (1 flight)
• Col du Tamie / Plan de Langot — outside the curated takeoff dataset (1 flight)
• Col du Joly, Hauteluce — outside the curated takeoff dataset (1 flight)
• St. André-Les-Alpes, Chalvet — outside the curated takeoff dataset (8 flights)
• Thorenc, Col de Bleine — outside the curated takeoff dataset (2 flights)
• Gourdon, Le Haut Montet — outside the curated takeoff dataset (3 flights)
• La Roque-Esclapon, Montagne de Lachens — outside the curated takeoff dataset (1 flight)
• Sarangkot, Pokhara — outside the curated takeoff dataset (6 flights)
• Korchon, Pokhara — outside the curated takeoff dataset (1 flight)
• Jas D'Oris — outside the curated takeoff dataset (1 flight)
• Laragne, Chabre — outside the curated takeoff dataset (1 flight)
• Aspres-sur-Buëch, St. Apotre — outside the curated takeoff dataset (1 flight)
• St Vincent les Forts — outside the curated takeoff dataset (4 flights)
• Serra da Estrela - Vale da Amoreira - Manteigas — outside the curated takeoff dataset (4 flights)