Originally Posted by DJ
Got to improve the performance at all speeds.
Why? The rotor will be far more efficient at low speeds than the prop, and the prop only really benefits at high speed by keeping hub profile drag down.
The smart solution would be for the prop control system to come in as airspeed increases. Pusher props (protected from landing gear) then allow rotor downwash to have rearward bias while maintaining horizontal rotor disk.
BTW, auto guys didn't seem that clear cut on tractor to me.
Mart