Introduction The Piper J-3 Cub is an American light aircraft that was built between 1937 and 1947 By the Piper Aircraft Company as an affordable trainer. The aircraft has a simple, lightweight design which gives it good low-speed handling properties and short-field performance. During the WWII, J-3 Cub was designated as L-4 Grasshopper, used extensively for reconnaissance, transporting supplies, artillery spotting duties and medical evacuation of wounded soldiers. Features Powerful 3536-850KV motor, Predator 40A ESC Highly detailed scale engine and landing gear Simple structure for quick assembly Durable EPO material Optional scale floats Overview Like its full-sized counterpart, the all-new FMS 1400mm J-3 V4 has excellent short takeoff and landing (STOL) and.