Detonators without such booster are called "initial pressing detonators" (IP detonators). The explosives were detonated by multiple exploding-bridgewire detonators. McClane steals Heinrich's bag containing C-4 explosives and detonators. The need for detonators such as blasting caps came from the development of safer explosives. They wore explosive vests and belts with identical detonators. Slapper detonators are used in nuclear weapons. Upon returning to "Ark Royal", the Swordfish loaded torpedoes equipped with contact detonators. Mother Melzard had that ignited detonators inside various humans. Ninety-four RDX electric detonators were fitted to the TNT. The cartridges include charges with remote and radar detonators. Slapper detonators are an improvement on EBW detonators. These could be unscrewed and the detonators removed. In some cases, the placers were fed from a cartridge holding a number of detonators. Heinrich is the terrorist in charge of the C4 and detonators. One of the gliders landed near to the fortification housing the bridge detonators.