Luc De Keyser
02-04-2005, 10:34 AM
A couple of years ago, on Norm’s forum, there was a short discussion about a patented design of a small outboard motorboat featuring an autogiro rotor. Craig Wall would have said that if you don’t see it around anywhere there must be a good reason for it not to work. I have been trying to figure out this “good reason”. Alternatively, one could work out under what conditions it would work and show that those are unrealistic.
I assume it has all to do with the L/D of the rotor vs that of the hull. As hull drag increases very rapidly with increasing speed, I would think it would be easy to add a rotor with a better L/D than the hull at that speed, even though the max speed of boats is relatively low wrt the best speeds for autogiro’s, right?
Luc De Keyser
I assume it has all to do with the L/D of the rotor vs that of the hull. As hull drag increases very rapidly with increasing speed, I would think it would be easy to add a rotor with a better L/D than the hull at that speed, even though the max speed of boats is relatively low wrt the best speeds for autogiro’s, right?
Luc De Keyser