USS F-4 (SS-23)

USS F-4 (SS-23) was an early United States Navy submarine of the F-class built at Union Iron Works and commissioned in 1912. F-4 served with East Coast and Caribbean submarines during a period of rapid naval innovation involving figures such as Theodore Roosevelt, institutions like the Naval War College, and shipbuilders including William Cramp and Sons and Bethlehem Steel. The loss of F-4 in 1915 off Honolulu prompted investigations involving the Navy Department, salvors from Mare Island Navy Yard, and public attention in newspapers such as the New York Times.

Design and construction

F-4 was laid down and constructed at Union Iron Works in San Francisco, part of a generation of experimental submarines influenced by designers from Holland Torpedo Boat Company and contemporaries like the Plunger-class and D-class submarine. Naval architects studied hull forms from John P. Holland, Simon Lake, and industrialists at Fore River Shipyard to optimize displacement and endurance. The F-class incorporated gasoline engines similar to installations produced by Hercules Engine Company and electrical machinery by Electric Boat Company, reflecting industrial links with General Electric and Westinghouse. Armament and sensor fit echoed practices observed aboard USS Holland (SS-1) and tested at the Naval Torpedo Station, Newport alongside ordnance such as Whitehead torpedoes. Commissioning trials involved officers trained at Naval Academy units and under the aegis of commanders from Pacific Fleet commands.

Service history

Assigned to the Pacific, F-4 operated from bases including Mare Island Navy Yard, Pearl Harbor Naval Base, and forward stations at Guantanamo Bay Naval Base and Panama Canal Zone during training exercises with vessels such as USS Birmingham (CL-2), USS Pennsylvania (ACR-4), and early destroyers like USS Perkins (DD-26). Crews drawn from United States Naval Academy graduates and warrant officers practiced diving procedures developed from lessons at the Submarine School, New London and tactical doctrines promoted by the General Board of the United States Navy. Missions included reconnaissance alongside Battle Fleet maneuvers, torpedo drills coordinated with the Torpedo Station, and harbor defense studies comparing tactics with European fleets such as the Royal Navy and observing maneuvers of navies like the Imperial Japanese Navy.

Sinking and rescue attempts

On 25 March 1915, while conducting a practice run near Honolulu Harbor on a mission tied to fleet exercises with units from Pacific Fleet and support from tender ships like USS Castine (PG-6), F-4 sank with loss of life. Immediate rescue attempts were mounted involving divers from Mare Island Navy Yard, Pearl Harbor Navy Yard, and civilian salvage firms familiar with the Kaiser Permanente industrial network and companies such as Knox and Adams. Responses drew officials including officers from the Navy Department and observers from the United States Congress, prompting comparisons to earlier submarine accidents such as the loss of USS F-1 (SS-20) and international incidents like the HMS A7 disaster. Efforts included diving operations using equipment pioneered by inventors like Augustus Siebe and apparatus supplied by firms linked to Scuba-predecessor technologies and the U.S. Navy Diving School.

Salvage and investigation

The raising of F-4 required complex salvage engineering with involvement from contractors experienced with the salvage of ships such as USS K-1 and techniques developed at Bethlehem Shipbuilding Corporation yards. Investigations into the loss engaged boards of inquiry under leadership from officials connected to the Secretary of the Navy, drawing testimony from naval engineers influenced by research at the Naval Ship Research and Development Center and academia at institutions like Massachusetts Institute of Technology and Johns Hopkins University. Findings examined gasoline engine ventilation, battery gas management known from incidents aboard USS Dolphin (PG-24), and hull integrity, informing policy debates within the General Board of the United States Navy and legislative oversight by committees of the United States House Committee on Naval Affairs and the United States Senate Committee on Naval Affairs.

Legacy and preservation

The F-4 disaster accelerated reforms in submarine design and safety that influenced later classes including the Plunger-class submarine successors and technical standards promulgated at Groton, Connecticut facilities and the Submarine School, New London. Memorialization included monuments near Pearl Harbor and records preserved at the National Archives and Naval History and Heritage Command, preserving artifacts alongside collections from USS Virginia (BB-13) and archival papers related to officers trained at the United States Naval Academy. The incident contributed to broader public discourse appearing in periodicals such as the Outlook (magazine) and Harper's Weekly, and informed subsequent salvage operations like those for HMS Thetis and for safety practices later institutionalized by the International Convention for the Safety of Life at Sea. The legacy of F-4 continues in museum exhibits at institutions such as the National Museum of the United States Navy and local Hawaiian historical societies near Honolulu.

Category:United States Navy submarines Category:Shipwrecks in the Pacific Ocean