National Geographic : 1941 Jun
700 The National Geographic Photograph from Press Assoc. Inc. "Get That Kick Down Pat, Sailor, If You Want to Join the Fleet!" Navy recruits must be able to swim 50 yards before they can go to sea. This will enable them to keep afloat until rescued, should they fall overboard. Naval Training Station, San Diego, California. Official Photograph U. S. Navy Like a Man-eater Baring Its Teeth, the Submarine Shark Breaks the Surface Water pouring from the freeing ports gives a ferocious appearance to this undersea vessel. Almost as large as a destroyer, with a crew of more than 50, these newer submarines can cruise hundreds of miles into hostile waters (page 695). Submarines in the U. S . Navy are named for fish and aquatic animals.