Data changelog
Every change to a cost figure is listed here, newest first.
| Date | Page | Change |
|---|---|---|
| October 11, 2026 | Piper Archer | First published. Fuel burn from AOPA, TBO from Lycoming SI 1009BF, market value from PlanePHD (March 2026). |
| October 11, 2026 | Cessna 172 | First published. 100LL prices from September 2026 national averages; TBO from Lycoming SI 1009BF. |