USS F-1 (SS-20)

USS F-1 (SS-20) was an United States Navy F-class submarine commissioned in 1912 that served in training and coastal defense before sinking after a fatal collision in 1917. Built by Electric Boat Company at Newport News Shipbuilding-era facilities, she operated from Newport, Rhode Island, New London, Connecticut, and San Pedro, California and played a role in pre‑World War I submarine development, crew training, and tactical experimentation.

Design and Construction

F-1 was ordered as part of the early twentieth‑century expansion of the United States Navy submarine force under the supervision of designers from Electric Boat Company and naval architects influenced by Simon Lake and John Philip Holland. Laid down at the Norwich Division of Electric Boat and launched in June 1912, her design reflected incremental advances over the Holland-class submarine and Plunger-class submarine predecessors, incorporating gasoline/diesel propulsion concepts similar to contemporaries built by Fore River Shipyard and William Cramp & Sons. Naval engineering debates involving figures such as Rear Admiral George W. Melville and institutions like the Naval War College informed hull form, ballast systems, and torpedo arrangement. Armament consisted of four 18‑inch torpedo tubes mirroring standards adopted after trial results from Torpedo Station, Newport and tactical recommendations by officers who had trained at United States Naval Academy and served aboard earlier boats like USS Holland (SS-1).

Service History

After commissioning in November 1912, F-1 joined the growing Submarine Flotilla, Atlantic Fleet for exercises and experimental work alongside sister ships including USS F-2 (SS-21), participating in war games conducted with surface units from Battle Fleet squadrons and destroyers such as those of Destroyer Squadron 1. Operations centered on training personnel from the United States Naval Academy, the Submarine School, New London, and crews seconded from Charleston Navy Yard and Portsmouth Navy Yard. Peacetime patrols and drills took F-1 to ports like Boston, New York City, Philadelphia, and Norfolk, Virginia, exposing her to interactions with capital ships that included components of the Atlantic Fleet and observers from the Office of Naval Intelligence. In 1914–1916 she contributed to doctrine development alongside officers who later served in World War I commands, and technological exchange with manufacturers including Sperry Corporation and General Electric refined gyro and electrical gear aboard boats of her class.

Transferred to the Pacific in 1916, F-1 steamed via Panama Canal convoys to San Diego and operated out of San Pedro, California with units of the Pacific Fleet, undertaking coastal reconnaissance, training with Submarine Chasers, and coordination with patrol vessels assigned to District 11.

1917 Collision and Sinking

On 17 March 1917, during nighttime surface transit off Point Loma near San Diego Bay and under conditions of restricted visibility, F-1 was struck by the steamship SS Parkfield (or contemporary merchant/transport) in a collision that rapidly flooded the submarine. Rescue and salvage efforts involved nearby units including USS Stuart (Destroyer No. 13), local Coast Guard detachments, and civilian tugs from San Pedro Harbor. Despite attempts by crew and rescuers, F-1 sank with loss of life; survivors and casualties were handled through Balboa Hospital and naval medical facilities, and courts of inquiry convened in San Diego and at Naval Station San Diego to investigate seamanship, signaling, and navigation procedures. The incident influenced operational safety directives issued by the Bureau of Steam Engineering and the Bureau of Navigation and prompted revisions to night transit protocols employed by submarines and surface vessels operating in congested coastal approaches.

Wreck Discovery and Archaeology

The wreck of F-1 was rediscovered in 1972 by recreational divers and later surveyed by teams associated with institutions such as the Scripps Institution of Oceanography, the San Diego Maritime Museum, and local historical societies collaborating with salvage firms and professional archaeologists from National Oceanic and Atmospheric Administration programs. Systematic documentation employed side‑scan sonar, magnetometer surveys, and photogrammetry techniques refined in projects led by figures from Monterey Bay Aquarium Research Institute and drew on methods used in investigations of wrecks like USS Conestoga (AT‑54) and SS Montebello. Artifacts recovered under permit included torpedo tube components, hull fittings, and personal effects conserved at repositories including the San Diego Air & Space Museum and compared with materials cataloged by Naval History and Heritage Command. The site has been subject to protection under state and federal laws overseen by agencies such as the California State Lands Commission and has informed public exhibits and academic publications from universities including University of California, San Diego and San Diego State University.

Legacy and Commemoration

The loss of F-1 contributed to evolving submarine safety, tactical doctrine, and seamanship training employed in the United States Navy through World War I and beyond, influencing standards promulgated by the Bureau of Steam Engineering and the Office of the Chief of Naval Operations. Commemorations include memorials in San Diego and entries in registers maintained by the Naval History and Heritage Command and local museums such as the Maritime Museum of San Diego. Scholarly attention from historians associated with Naval War College, Naval Historical Foundation, and maritime archaeologists from Society for Historical Archaeology has placed F-1 within broader narratives of early submarine development, along with vessels like USS Holland (SS-1), USS F-4 (SS-23), and contemporaneous foreign types from Royal Navy, Imperial German Navy, and other navies cataloged in comparative studies. The wreck remains a site of interest for divers, educators, and preservationists who collaborate with institutions including NOAA Office of National Marine Sanctuaries and state agencies to balance exploration with protection.

Category:United States Navy submarines Category:Shipwrecks of the California coast Category:Ships sunk in collisions Category:1912 ships