Hello Gabriel, the 4.12 version actually leaves the wings in the deployed position if you start on a runway, they are folded on a carrier, on this particular aircraft the wing moves in part through the undercarriage door which looks odd, however, I just watched a video of the real thing and I think it would be fairly difficult to replicate for our game.
Just look at the piece the crew man moves to allow the process to begin.
I have not myself tried any 3d for a wing fold, however, from doing other things it might be possible to leave as it is but try different orientations using the Matrix tools until it moves as per your own java code, you might get lucky, maybe not but worth a try.
If that fails I could put the meshes into gmax for you and turn them into the direction you think might work, try and give me a little image of what direction you think might be appropriate to work with your code, I am not the brightest with math so you will need to give me a clue.
Take care and be safe.
Wishing you all the very best, Pete.