Photo #: S-584-026 "Proposed Destroyers ... Jan. 14, 1913" Preliminary design prepared for the Fiscal Year 1913 destroyers, which became the O'Brien class (Destroyer #s 51 to 56). This plan provides four 4-inch guns and a speed of 29.5 knots in a ship 310 feet long on the load water line (L.W.L.), 30 feet 6 inches in beam, with a normal displacement of 1,090 tons. Note: The original document was a blueprint (white on black). The original plan is in the 1911-1925 "Spring Styles Book". U.S. Naval Historical Center Photograph. Online Image: 317KB; 1500 x 1200 pixels