Takeoffs that could not be located:

• Rennesøy — no usable coordinates recorded on flightlog.org (1 flight)
• Unknown takeoff — no linkable takeoff on flightlog.org (40 flights)
• Annecy, Montmin, Col de la Forclaz — outside the curated takeoff dataset (1 flight)
• Røldal Skisenter — no usable coordinates recorded on flightlog.org (1 flight)
• Stavanger lufthavn Sola (ENZV) — no usable coordinates recorded on flightlog.org (1 flight)
• Sauda, Birkelandsnuten — no usable coordinates recorded on flightlog.org (1 flight)
• Annecy, Talloires, Planfait — outside the curated takeoff dataset (3 flights)
• Kalavrita — outside the curated takeoff dataset (7 flights)
• Laragne, Sederon — outside the curated takeoff dataset (3 flights)
• Laragne, Chabre — outside the curated takeoff dataset (1 flight)
• Bassano, Costalunga — outside the curated takeoff dataset (2 flights)
• Valle de Bravo, El Peñon — outside the curated takeoff dataset (12 flights)
• Valle de Bravo, La Torre "Torres" — outside the curated takeoff dataset (2 flights)
• Dune du Pilat - Arcachon — outside the curated takeoff dataset (1 flight)
• Montalegre, Mountain of Larouco — outside the curated takeoff dataset (8 flights)
• Algodonales, Sierra de Lijar, "Levante" SE and SW — outside the curated takeoff dataset (1 flight)
• Fidjeland, Sirdalen, Vest-Agder — no usable coordinates recorded on flightlog.org (2 flights)
• Rotabakken-parkering, Bjørheimsbygd, Strand, Ryfylke — no usable coordinates recorded on flightlog.org (1 flight)
• Kössen, Jansenstation — outside the curated takeoff dataset (7 flights)
• Sandnes, Vedafjell — no usable coordinates recorded on flightlog.org (1 flight)