Insomniac55 said:
...but helicopters don't fly fowards by simply tilting the rotor disk. The swashplate causes the blades to rapidly vary their pitch as they complete each revolution, resulting in more lift at a certain point in the rotor disk. This pitches the whole heli forwards, which results in forward flight.
More or less, I think we're both talking about the same thing. The swashplate causes the AoA to increase as the rotor is passing through the aft portion of its rotation and this has the effect of tilting the disc (somewhat), which in turn pitches the aircraft. To generate forward speed, a helicopter will need pitch down and collective-up, but the initial pitch is cause by some rotor disc tilt, generated by increased lift aft of the rotor hub.
The result to an observer outside the aircraft is that the entire aircraft pitches as a solid object, however the view from inside is that the rotor disc does tilt. You're a probably more correct, though, as more speed will be generated as a result of pitching the entire aircraft rather than just tilting the disc. A good example where disc-tilt can be demonstrated is a wheeled helicopter taxing, such as an S-70 Blackhawk. Because it is on the ground the airframe cannot pitch, though it can still taxi forwards under its own power.
I like your theories on stable flight for the hover bike, however the hardware you mention doesn't appear evident in the photos, hence my scepticism. Not to mention his outlandish claims on the performance envelope!
