Following builder's trials, outfitting, and crew training, S-5 departed Boston Navy Yard, Boston, Massachusetts, on 30 August 1920 to undergo full-power trials in the Atlantic Ocean 55 nautical miles (102 km; 63 mi) off the Delaware Capes. At 13:00 on 1 September, she commenced a dive for a submerged test run. Water unexpectedly entered the submarine through the main air induction system, pouring into the control room, engine room, torpedo room, and motor room.[3]
Normal procedure was to leave the main air induction valve open until the engines had a chance to come to a full stop, this operation being so timed as to occur just prior to complete submergence. In the case of S-5, however, the chief of the boat, Gunner's Mate Percy Fox, the man responsible for operating this valve, was momentarily distracted. Noticing the mistake, he grabbed the valve lever and jerked hard, causing the valve to jam open.[3] After considerable difficulty, the system valves in the other compartments were closed, but all efforts to secure the torpedo room valve met with failure. The abandoned torpedo room flooded, making the boat bow-heavy. An additional 80 long tons (81 t) of water in the motor room bilges caused her to settle on the bottom. It was now impossible to eject water from the torpedo room. An attempt was then made to pump out the motor room, but a gasket blew out and there were no means for repair. Lying 180 ft (55 m) on the bottom, the crew had little hope of being found, much less being rescued.[4]
The crew reasoned that sufficient buoyancy in the after section could tilt the sub on her nose and extend the stern above the surface. The tilt would cause the water in the motor room to drain forward and increase buoyancy further. However, there was great risk involved because this would allow salt water into the battery room, which would generate deadly chlorine gas. They hoped to have enough time, after the water had entered, to close the watertight door before the gas could reach a dangerous level. After making preparations, air was applied to the after ballast and fuel tanks, blowing them dry. The stern began to rise and then shot to the surface. Men, floor plates, bilge water, and other loose objects fell through the length of the submarine. One man nearly drowned in the battery room, but was fished out, and the compartment door was sealed against the gas.
By tapping on the hull, it was determined that the stern extended about 17 ft (5.2 m) above the water. With inadequate tools, they took turns trying to cut a hole in the thick hull. After 36 hours, they had only succeeded in making a hole 3 in (76 mm) in diameter.
Side view of USS S-5The steamshipAlanthus standing by the stern of S-5 on 2 September 1920, the day after S-5 accidentally sank off the Delaware BayNOAAS Whiting's first sonar image of the wreck of S-5 on the ocean bottom, made in late July 2001 when Whiting discovered the wreck's exact location for the first timeThe circle of plating General G. W. Goethals cut from S-5's hull to allow men to escape is on display at the Navy Museum at the Washington Navy Yard in Washington, D.C. It is approximately 2 ft (61 cm) in diameter and 3⁄4 in (1.9 cm) thick.
Rescue
A lookout on watch aboard the wooden steamshipAlanthus, making her last voyage, spotted what he thought was a buoy on 2 September 1920. Knowing that no buoy should be so far out to sea, Alanthus's captain turned his ship around to investigate. Approaching the submarine's stern rising above the ocean, the captain hailed S-5 in maritime fashion. That conversation became legend:[citation needed]
Alanthus could not help with the cutting, but was able to rig a pump to provide air, provide fresh water for drinking, and rig cables under S-5's stern to hold it above the surface. Alanthus had no operator for her radio, but at about 18:00 was able to contact the passing Panama Railway Company steamship General G. W. Goethals using signal flags.[5][failed verification]
General G. W. Goethals, which was on voyage from Haiti to New York City, had a radio and contacted the U.S. Navy, and her crew immediately began enlarging the hole. By 01:45 on 3 September 1920, it was big enough to squirm through. At 03:00 on 3 September, Lieutenant Commander Cooke became the last member of S-5's crew to leave the submarine. Her crew had suffered no deaths or serious injuries.[citation needed]
Later that morning, the battleshipUSS Ohio secured a towline to the stern of S-5 and proceeded to tow her to shallower water. The towline, however, parted and the loose submarine bobbed, then plunged to the bottom about 15 nmi (28 km; 17 mi) off Cape May, New Jersey.[6] The Navy began an unsuccessful attempt to raise S-5, but called it off in November 1920. A second effort in 1921 also was unsuccessful, and S-5 was struck from the Naval Vessel Register that year. She was the fourth submarine lost in U.S. Navy history.[citation needed]
Whiting's survey department approached the project as it would any typical hydrographic survey. Information on snags – obstructions on the ocean bottom that snarl fishing nets and gear – that local recreational fishermen had reported and reports of possible locations of the wreck from divers that had visited it provided Whiting with possible targets for her search. After her crew had prepared a plan for a systematic search, Whiting moved from target cluster to target cluster, mapping the ocean bottom using sidescan sonar. After eight hours of searching, Whiting found the wreck of S-5 directly over one of the suspected targets, made a sonar image of the wreck, and recorded its exact location. Whiting then made several more passes over the wreck to acquire additional images of it at various angles before leaving the scene.[7]
^ ab"Submarine Casualties Booklet". U.S. Naval Submarine School. 1966. Archived from the original on September 11, 2009. Retrieved 2009-09-08.{{cite web}}: CS1 maint: unfit URL (link)
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