As for the afterburners, it can become quite frustrating when you hit your tab button to make a fast get away and all you hear is shutting down sound...
You could count it as having the wings closed maybe? Even if with extras from the SCP. Or if you were really eager, you could try and get some animations to the meshes added in, but that would be quite difficult to pull off, including a function that disables weapons when the wings are 'closed'.
Anyway thats my 2 cents, I thought you guys were dead because there hadnt been an update at your site for over a year, but I guess when you check the forums there is always a different story...