Fell down a rabbit hole last night of reading about rotor ships: https://en.wikipedia.org/wiki/Rotor_ship
The aircraft equivalent is the Flettner airplane which uses spinning rotors instead of wings, which seems so bonkers counterintuitive:
Video of a working model one to show that this isn't just someone's bizarre fantasy https://www.youtube.com/watch?v=hlmvHfIAszo
