SBD, I can try but I will have my buddy Dan come on with all the real info. I can givw you some basics. 19 servoes, brakes that were home made. 4x10oz tanks with 2oz hoppers for each. 4xos91 four strokes on glow, retractable tail skid, flaps and the list goes on. He will be on shortly to fill in the big blanks. He will post some up close pics of thedetails also