In response to the absence of a suitable aircraft, Wallis revived an earlier concept for a large six-engine bomber, known initially as the 'High Altitude Stratosphere Bomber' and later simply as the 'Victory Bomber'. The Victory Bomber had its origins in an earlier concept that the RAF had previously rejected prior to the war, having not even introduced four-engine bombers at the time, there had been some political support from figures such as Lord Beaverbrook, who had been appointed as the Minister of Aircraft Production in May 1940. In July 1940, Wallis was summoned to meet with Beaverbrook, and was able to briefly present the Victor Bomber concept to him, who in turn referred it for further study. On 1 November 1940, Sir Charles Craven, Vickers' Managing Director, wrote to Lord Beaverbrook to suggest that he give backing to both the bomb and the Victory Bomber.