The Focke-Wulf Fw 190 Würger, also abbreviated as Fw 190, is a single-seat, single-engine fighter used by the German forces after 1941. Alongside its counterpart, Messerschmitt Bf 109, it became the backbone for the Luftwaffe's Jagdwaffe. On its debut combat, the Focke-Wulf was superior to the Spitfire V, which happened to be the Allies main plane at the time, in almost every way. Mostly suited for low-medium altitude fights, the Focke-Wulf proved to be the superior plane until the Allies introduced the Spitfire XI.