- You may be looking for Freedom One
Acorn One was a flight vessel used by the Kingdom of Knothole in 3237 following Sonic the Hedgehog's return from space. Docked at King Frederick Airfield, it was used by King Maximillian Acorn and his wife to transport them around Mobius during their world tour to form allianced against the Eggman Empire. (StH: #138)
- It is unknown if Acorn One was destroyed during the Destruction of Knothole or not.