Takeoffs that could not be located:

• Bir, Billing — outside the curated takeoff dataset (77 flights)
• Unknown takeoff — no linkable takeoff on flightlog.org (89 flights)
• Kina Beach — outside the curated takeoff dataset (1 flight)
• Barnicoat Hill, Stoke, Nelson, New Zealand — outside the curated takeoff dataset (258 flights)
• Mount Murchison — outside the curated takeoff dataset (3 flights)
• Inwoods, 50km sor for Nelson — outside the curated takeoff dataset (9 flights)
• Takaka HIll — outside the curated takeoff dataset (7 flights)
• Golf Course west of Bir Billing — outside the curated takeoff dataset (4 flights)
• Tatapani hot springs near Billing — outside the curated takeoff dataset (1 flight)
• Reunion, Colimacon 800 — outside the curated takeoff dataset (46 flights)
• Valle de Bravo, El Peñon — outside the curated takeoff dataset (58 flights)
• Le Maïdo — outside the curated takeoff dataset (5 flights)
• Reunion, Bellemene 850 — outside the curated takeoff dataset (5 flights)
• Fethiye, Ölüdeniz, Babadag lower start (1700m) — outside the curated takeoff dataset (2 flights)
• Fethiye, Ölüdeniz, Babadag middle start (1800m) — outside the curated takeoff dataset (1 flight)
• Réunion, Maïdo — outside the curated takeoff dataset (1 flight)
• Reunion, Dos d'ane — outside the curated takeoff dataset (1 flight)
• Krusevo, Meckin Kamen — outside the curated takeoff dataset (46 flights)
• Dvest, Prilep — outside the curated takeoff dataset (2 flights)
• Hvittingfoss — no usable coordinates recorded on flightlog.org (5 flights)
• Valle de Bravo, La Torre "Torres" — outside the curated takeoff dataset (2 flights)
• Andalucia, Sierra Nevada, Granada, Cenes de la Vega — outside the curated takeoff dataset (9 flights)
• Bischlinghöhe - Werfenweng - Abtenau — outside the curated takeoff dataset (4 flights)
• Tolmin-Kobala — outside the curated takeoff dataset (12 flights)
• San Simeone — outside the curated takeoff dataset (1 flight)
• La Herradura — outside the curated takeoff dataset (6 flights)
• Andalusia, Loma del Gato - lower launch — outside the curated takeoff dataset (5 flights)
• Reunion, Colimacon 1400 — outside the curated takeoff dataset (2 flights)
• Bovec - Kanin — outside the curated takeoff dataset (1 flight)