The bomber design is not believed to have been developed beyond construction of a large wooden wind tunnel model which survives today at Brooklands Museum. However, the earthquake bomb idea was continued, initially as the smaller Tallboy bomb, and then the larger Grand Slam bomb, the carrying aircraft being a modified Avro Lancaster, whose performance had improved during the war to the point where it could manage such a load. There was further design work on large high flying bombers by the British during the war, including 75 ton (68 tonne) and 100 ton (90 tonne) design proposals, but these did not progress either. The Bristol design work for a 100-ton bomber did have some influence on the Bristol Brabazon.