Originally Posted by
Graviman
Shawn, agreed. X2 should be the control for this concept. Pusher/puller props are a must for fuselage/hub drag.
Maybe I'm missing something here, but surely you could get an equivalent reduction in drag by having the rotor mast angle forward somewhat. The helicopter would hover tail low (but this is less of an issue with a counter-rotator as there is no tailrotor), but the fuselage would be horizontal in fast forward flight.
Is there some additional drag from having the disk at a tilt?
Daniel