Takeoffs that could not be located:

• BJØRGAN GRONG — no usable coordinates recorded on flightlog.org (4 flights)
• Roldanillo, Trebol — outside the curated takeoff dataset (9 flights)
• Bella Vista, Roldanillo — outside the curated takeoff dataset (2 flights)
• Åre, Tusenmeter berg — outside the curated takeoff dataset (16 flights)
• Valle de Bravo, El Peñon — outside the curated takeoff dataset (32 flights)
• Åre, Mörvikshummeln — outside the curated takeoff dataset (3 flights)
• Grogn alpinanlegg — no usable coordinates recorded on flightlog.org (87 flights)
• Unknown takeoff — no linkable takeoff on flightlog.org (1 flight)
• Voss, Myrkdalen, skolebakke — no usable coordinates recorded on flightlog.org (15 flights)
• Åre, Röda rappet Väst — outside the curated takeoff dataset (4 flights)
• Strugstad — no usable coordinates recorded on flightlog.org (7 flights)
• Skolebakken på Forbord — no usable coordinates recorded on flightlog.org (29 flights)