Heinkel He-177

The Heinkel He 177 Greif (Griffin) was a long-range heavy bomber flown by the Luftwaffe during World War II. However, it was the only long-range heavy bomber to be operational with the Luftwaffe during the war. The He 177 had a payload/range capacity similar to that of the four-engine heavy bombers used by the Allies in the European theater. source wikipedia