RE: Modeltech .25 Extra 300 conversion
The rest of the plane is built following the included manuel with the exception of using a micro servo for the rudder. The listed CG is met with the Hecell pack all of the way back to the rear of the cockpit. Cinch it in with velcro like strap. Place the Kokam pack behind what is left of the throttle tray fuse brace. Strap it the same.