I agree that USMC happiness is a little too much, but based on what they are saying,the MV-22 is a new aircraft and has of course some problems to solve. But USMC do not speak about the engine upgrade for which they have not found solution yet, and which should put them in problems soon or later. On...
the AC311 is a blend between the HC 120 (chinese version of the EC 120B) and the Z-11 (Chimese version of the AS 350B2/3) - this picture is much better to understand the deal
:D Guys, Remember the Fairey Rotodyne, in the 50s, was later cancelled for lack of funding from the UK government, but was a full size Eurocopter X3, with main rotor and two lateral propellers. Same configuration, with of course many technical differences. Eurocopter plans are for a 30 seats aircraf...