Focke-Wulf Fw 191

The Focke-Wulf Fw 191 was a German World War II prototype bomber, as a proposal for the Bomber B advanced medium bomber design competition. It was intended to produce two versions, a twin-engine version using the Junkers Jumo 222 engine and a four-engine variant that was to use the smaller Daimler-Benz DB 605 engine. The project was eventually abandoned due to technical difficulties with the engines. This model, which remained at the prototype stage, was built in only three examples (Fw 191 V1, V2 and V6) before being finally shelved at the end of 1943. source wikipedia