The Focke-Wulf Fw 191 was a prototype German bomber of World War II prepared to meet the Technische Amt Bomber B requirement of July 1939, calling for a high altitude pressurized bomber. Two versions were intended to be produced, a twin-engine version using the Junkers Jumo 222 engine and a four-engine variant which was to have used the smaller Daimler-Benz DB 605 engine. The project was eventually abandoned due to technical difficulties with the engines and electrical systems needed to operate the remote-controlled guns.