H.M.S. "Dolphin" provides training on how to escape from a submarine. Hampshire.
Submarine Escape School - H.M.S. "Dolphin"
C/U men adjusting breathing equipment. C/U as they open sluice gates in tank and water gushes in. M/S man looking through window into tank. M/S man looking and checking pressure. Various shots as instructor and pupils make their way out of the submarine and float in the tank, one man somersaults in front of the camera. M/S naval officers looking on. M/S as man underwater drops flap from his breathing apparatus and rises slowly out of picture, another man does the same. M/S as they break the surface. M/S naval officers watching. M/S man on surface floating on back, he grasps side of tank. C/U men climbing out of tank.