Have a 61 Super Tiger and tuned pipe on mine--Put a Dave Brown mount on the front--Put servos on the side in the back--Graphite rods to control horns--One ounce of weight on left wing tip to counter balance the engine off set--Battery pack where the servos went inside the fuse--Perfect balance--The ST will go out o fsight stright up--Level flight fast--Put copper tubing on wing where fits in fuse---Has a tendanty to burn because of vibrations--Great plane