This P-38 is based on P-38 in scale of 1:5.08 of oneder which enlarged to scale 1:4 having scale like propeller dia of 876 mm (34,5") with pitch of 570 mm (22,4") and engines with 2,37 Gear ratio to give max scale speed of 166 kph (666 kph at military power). Cruising speed 111 kph (443 kph), stalling 41 kph (165 kph). Cubic wing loading 15.71.