for fs98 there was an Osprey that came with a alternate chopper .air file, and i'm flying it still.
one thing i find annoying about it tho. the rotor tilt was done with flaps, but they don't work anymore since fs 2k. it doesn't affect the flight profile and does'nt lead to a crash when the rotors hit the ground, but it is still strange looking.
now my question: is there a tweak for that?
maybe just having the rotors fixed in vertical position, or maybe turning them as exit doors or something.