The movement gimmick is running and the opening and closing of both wings are perfect, but the special gear wears out and slips when the aircraft rises, so it only rises about halfway. The cause of gear slippage and wear, which often occurs with robot types, is that the moving parts are held down and stress is placed on the gears.
It has been cleaned and waxed inside and out to prevent rust. The plastic parts are also waxed to prevent them from drying out.The size is 15.1in in length and 11.0in on both wings. Operates on two single batteries, but please be sure to use manganese batteries. Alkaline batteries (there were no such batteries at that time) are slightly larger and heavier than manganese batteries, making it a burden to lift the aircraft.