Donkey,
The Osprey is very quiet, there is no reason to believe the 4 propped version would be anything different.
GPMG
"Engines may be cross connected but rotor pitch failure / general rotor failure would be pretty tough to manage"
"So if they are all providing lift, take out one engine / rotor and it is like a leg suddenly dissapearing from a table. I would be surprised if any pilot or automatic system could find a way of reacting to this without the worst happening."
All the points you make are just as true of the chinook. My big concern would be what if the tilt mechanism stuck in the forward flight position. The landing would be very fast, and very noisy as the props disintegrate in a fiesta of light and sound.
Last edited by Tourist; 14th Jul 2009 at 15:34.