I posted before how I cut a larger hatch to get at the landing gear screws. It made installing the landing gear with proper blind nuts MUCH easier.

Having done so, I wanted to see how difficult it would be to make the outside doors actually operational. It turned out to be fairly easy.

The outer doors are hinged to the hatches I cut out and the entire assembly screws into blocks on the wing skins so that they can be removed to service the gear.

There is a tapered plywood piece glued to the back side of the middle gear doors that push the outer doors open when the gear come down. The outer doors rest on this piece when the doors are closed.

There are two small rare-earth magnets embedded in the outer doors and the tapered plywood piece to hold the outer doors closed when the gear is up.

There is an elastic cord between the middle doors and the outer doors that holds the outer doors against the middle ones when the gear is down and pulls the outer doors closed when the gear goes up.

Bob