RE: Spacewalker 2nd servo mouting for elevator
I set three across with the rudder in the middle (as a pull pull) and the elevator servos on either side. Used a reversing wye so that both pushrods were on the outboaard side of the servo arms and crossed them inside the fuse so that it was a straight shot to the elevator horns[8D]
I used a small HA 81 for engine and mounted just behind the former where the front of the wing slides into