The Churchill AVRE was one of the so-called 'funnies' designed by Major General Sir Percy Hobart specifically for use on the D-Day beaches to break through the German fortified defences. The AVRE was the most successful 'funny' type. Others included the the amphibious Duplex Drive (DD) tank, the ‘Crocodile’ flamethrowing tank and the ‘Crab’ minesweeping tank.