Air retract landing gear

Took me some time to figure out how to fit an air pump. The intake valve has a one-way valve that open up at 40-60 psi. My foot press air pump cannot tolerate the pressure and broke the piston. Need some "steel" epoxy pudding to reinforce the piston and reseal the crack with silicone glue.

Now can easily pressurize it with 7 stroke.

Weight : pending