The Junkers Ju 87 "Stuka" was one of the most famous dive bombers of the German Air Force (Luftwaffe) during World War II. The D series was the main improved model, launched in 1941. The D5 model is another major modification in this series, with its wings increased to 15 meters (the wingspan of the D3 is 13.8 meters) in order to improve its lift and stability, allowing it to dive more accurately towards targets during bombing.