This is a rigged version of James Jackaman's (JIMBO45UK) excellent P-51 Mustang here on BlendSwap. To rig the plane, I had to separate the control surfaces and add the landing gear. I used the knife tool to prevent messing with James' textures. I also converted everything to Cycles materials.
Everything is rigged except the trim tabs. Rigged pieces include: the canopy, gear, ailerons, flaps, elevators, rudder, and tail wheel. Constraints are set on everything, and certain pieces are set to copy rotations (such as the right flap copies the rotation of the left flap), so if you want to animate this plane, animate from the left side because the right side follows the left. Aileron movement is inverted from right to left. Constraints are also set to prevent moving pieces too far.
This blend file only includes the plane and its rig, nothing else.