Historical clue formulations

• Record held by the Spruce Goose for over 70 years, at 320 feet — 2026-09-24
• Up to 11 meters for a pterodactyl — 2022-09-18
• Jet measure — 2017-01-22
• Measurement for a bird — 2016-01-11
• It's about six feet for a turkey vulture — 2012-04-09
• Bird spec — 2010-09-28
• Plane stat — 2004-09-29