Though the smallest in the International Rescue fleet, Thunderbird 4 is a versatile and capable craft. Outfited with powerful searchlights, it can descend to the deepest parts of the ocean with ease. For rescue situations it is fitted with cutting lasers, electromagnets, demolition rockets and battering rams, which can be extended from the nose section. With a top speeds of 46mph (74kph) on the surface and 180mph (300kph) submerged, it can travel quickly and pack a powerful punch.