WE.177B
The WE.177B was a 400 kiloton bomb carried by the Tornado until the weapons retirement. (Hiroshima was hit by the 15 Kiloton Little Boy). These WE.177s are on display at the excellent Hack Green Secret Bunker near Nantwich in Cheshire. The weapon was parachute-retarted for low level deployment and could be used in lay down mode, a time delayed detonation.