An example might help. In WWII the Japanese aircraft carrier Taiho was hit by a single torpedo from the submarine USS Albacore. the torpedo caused some flooding and some structural damage, but no immediate fires.
However that structural damage had ruptured some fuel lines, which bring aviation gas from their storage tanks to the hanger where the planes are fueled. That gas accumulated, then started evaporating filling large parts of the ship with vaporized fuel. More and more of the ship was filled with the fuel vapor until somehwere it found an ignition source and BOOM.
Latest Answers