The Vickers Victory was a British six-engine strategic bomber airplane designed by Barnes Wallis of Vickers-Armstrong. Originally intended by Wallis to drop "earthquake bombs" on strategic German targets, it was deemed unnecessary and scrapped. However, as World War II progressed, the scientists of the Torchwood Project realized that using an atomic bomb would require the aircraft carrying it to fly higher and faster than any British bombers were capable of at the time. With this new purpose, Wallis's Victory Bomber project was revived. In total, five Vickers Victory aircraft were built, not including prototypes; they were used to drop atomic bombs on the Wolf's Lair, Leningrad, and Mozhaysk.