I have seen that the Spitfire someone uploaded has a working spinning propeller, although this does not seem to produce takeoff thrust without the aid of the rocket.
The question I have is whether anyone knows anything about trying to make a prop that actually spins itself up fast enough to take off.
Specifically:
1. Can rocket thrust push a separate craft.
2. Is it practical to make a self-powered electric system for that?
3. Can rover wheels turn another craft?
4. How well can a craft be "caged" inside another craft?
5. Do rotating wings use their individual velocity to calculate airspeed or that of the entire craft?
Edit: apparently this task is easier than I thought, due to the fact that I didn't notice before but there are stock hinges. This PROBABLY means we can do crazy things like stock swashplates and gyrocopters. Add to this the fact that wheels are REALLY powerful so if possible they might make good engines.
Another thing I noticed is pistons can be set to automatically move, so presumably we should be able to make propellantless engines with pistons.
Hmmmmmm. It does appear helicopters achieve reasonably good performance with shrunken rockets at the bladetip. I managed to make a monstrous "helicopter" with mile-long blades lift over a kiloton on around 60 tonnes of thrust (albeit at absurd effective torque) exploding the hub has the rather comical effect of throwing the rotor blades out of the solar system due to their momentum.
Sadly as far as I can tell wheel-like 3600 RPM insanity doesn't seem to apply to rotors. The rev limit is lower/more reasonable.