J3

J3, J03, J 3 or J-3 can refer to a number of things:

Roads:

Submarines:

Aircraft:

Other:

Piper J-3 Cub

The Piper J-3 Cub is an American light aircraft that was built between 1937 and 1947 by Piper Aircraft. The aircraft has a simple, lightweight design which gives it good low speed handling properties and short field performance. The Cub is one of the best known light aircraft of all time. The Cub's simplicity, affordability and popularity — as well as its large production numbers, with nearly 20,000 built in the United States — invokes comparisons to the Ford Model T automobile.

The Cub was originally intended as a trainer, and saw great popularity in this role and as a general aviation aircraft. Due to its performance, it was well suited a variety of military uses such as reconnaissance, liaison and ground control, and was produced in large numbers during the Second World War as the L-4 Grasshopper. Large numbers of Cubs are still flying today. Notably Cubs are highly prized as bush aircraft.

The Cub is a high-wing strut-braced monoplane with a large area rectangular wing. It is powered by an air-cooled piston engine driving a fixed pitch propeller. Its fuselage is a welded steel frame covered in fabric, seating two people in tandem.