When The Navy Gets Down To It... The Royal Navy's under-water men have an extensive wardrobe, as is suggested-by-this trio, seen during training at Portsmouth. Arthur Wiscombe of Portland is wearing a standard diving suit weighing a total of 187 pounds - the boats weigh 20 pounds each. It can be used at a depth of 300 feet where the prosecure is 150 pounds to the square inch. The frogman at right wears a more streamlined outfit with flippers, designed for fast travel and high ***** below the surface. The diver seen in background on left is in a self-contained suit for use in shallow water. April 29, 1952. (Photo by Reuterphoto).