I decided use a servo to extend and retract the brake. The way I had done this was to make two aluminum slides. Basically an L shape piece of Aluminum, cut a slice down the middle big enough to accept a 440 rod, and cut holes on the other side so that epoxy will hold it onto the brake. An extended servo arm made from Aluminum will be used to raise and lower the brake. I had to center the servo in the plane to make sure it would not bind the brake as it was in movement.
The brake is made of 1/8 ply with balsa top with a piece of ply near the front of the brake so that the hinge will have something to hold onto.