[RAF_Magpie]

i have found by stripping down the TB3 that the fire extinguisher is actually a small animated square placed within the engine model.
So in theory, does this mean that i can place the same animation to the wings and this will have the same effect?
and as the java will need programming for this to work, when the models have been completed will the guys here be able to do the required programming as necessary bearing in mind that the C variant was automatic ?

This small animated square, is called a Dummy Object, which represents the location of the hook for the Extinguisher. This can be simply be added with text editing of the mesh, or by physically adding a dummy object for you to attach the hook, or rather physically add a hook in 3ds; but all this requires more than simply the hook placement on the mesh - as you've guessed, it does also require class files to be edited.