1/2.5 scale DG-800A for RF 7 with improved winglet foil and better performance more like the actual model. Please check all control throws before takeoff. This is a self launching sailplane with SLS on 3pos. switch; make sure it is retracted before or after reset, switch all the way down. Throttle for motor is independent, before retracting, idle motor and listen for it to stop. It can be mixed but I leave that to you. Great flying model, replicating the majesty of this scale, when you're doing 100, looks like 30! Everything, physics and all, tweaked and tested for size, including airfoil upgrade for size and speed. Have fun!