ORIGINAL: Warbird Man

Gear doors:

There are many ways to hooking up gear doors, but not alot of ''cheap'' ways. I believe the regular kit built TF GS build thread has a few ideas on rigging up a mechanical wire and paddle type system in where the wheel closes the doors or having levers mounted to the doors is another. Other wise you need some kinda actuation system to open and close them. There are many pneumatic and or electric setups out there.
I already had the pneumatic gear for this plane so I decided to use some air cylinders to operate the doors and go with a UP3 valve. This type of air valve can adjust the timing of the doors and gear separately. I mounted it to the wing to keep all the air lines within it and only need one quick disconnect supply line from the tank in the fuse. The air cylinders are 1-5/8'' from BVM.