V-22 Osprey
This is a realistic replica of the Bell Boing V-22 Osprey. It is pretty big and pretty awesome. The cargo bay should be able to carry some serious cargo too.
Tips for flying: When you want to transform into airplane mode, I highly recommend increasing the collective at the same time that you rotate the nacelles forward. And vice versa, you should decrease the collective when you transition back into helicopter mode.
Controls:
Start engine: Right Shift
Collective control: I, K
Pitch and Roll (helicopter mode): Arrow keys
Yaw (helicopter mode): J, L
Rotate nacelles: 9, 8
Pitch and Roll (airplane mode): numpad 1235
Yaw (airplane mode): U, O
Auto stabilization: Return
Landing Gear: M, N, B
Cargo Door: Comma, Period
Camera: Ctrl