How does one escape from a sinking submarine?
British submarines have two escape routes called “towers”, which can be used to escape from stricken submarines. These towers are located at each end of the submarine so that all personnel have access to one or the other. The sailor gets into the tower dressed in a special escape suit, shuts the door, floods the tower with water, the outer door opens and the sailor floats to the surface. The special escape suit, is an all in one waterproof overall, that has a built in hood that can be inflated to enable the escaping sailor to breath normally on his way to the surface.
