Hi all, I was given a large scale B25 nitro with robart (I think) air retracts.
I was fiddling with it yesterday and I have no idea how to move the retracts up or down (it's currently locked to down) without filling the tank with air?
Trouble is, I do not have a pump.
How do I make my own pump? Or do I really need to get a robart hand pump?
Is there a way I can operate the retracts without air?
If there is a way of making my own pump, what nozzle size do I need?
the plane did not come with manual for the retracts...
dont think i can upload photos from work...