82-621: USS Cod (SS/AGSS/IXSS-224) is a Gato -class submarine , the only vessel of the United States Navy to be named for the cod , an important and very popular food fish of the North Atlantic and North Pacific oceans. She was launched on 21 March 1943, and commissioned on 21 June 1943. Cod is now a National Historic Landmark , preserved as a museum ship and memorial permanently moored in Cleveland, Ohio , and
164-409: A 5-inch (127 mm)/25 caliber Mk. 17 gun , and some ships had two of these weapons. Additional antiaircraft guns included single 40 mm Bofors and twin 20 mm Oerlikon mounts, usually one of each. At the end of World War II, the U.S. Navy found itself in an awkward position. The 56 remaining Gato -class submarines, designed to fight an enemy that no longer existed, were largely obsolete, despite
246-547: A constructive total loss and not repaired. Occasionally, some confusion arises as to the number of Gato -class submarines built, with some sources listing the total as 73, due to the transitional nature of the first four ships (SS-361 through SS-364) constructed under the second contract by the Manitowoc Shipbuilding Company of Manitowoc, Wisconsin . These were originally intended to be Balao -class subs and were assigned hull numbers that fall in
328-502: A landing craft , LSV-129 , on 14 August, and, once more successful, she returned to Fremantle 25 August. Cod put to sea on her fifth war patrol 18 September 1944, bound for Philippine waters. She made her first contact, a cargo ship, Tatsushiro Maru (6,886 tons) on 5 October, and sank it. Two days later, she inflicted heavy damage on a tanker. Contacting a large convoy on 25 October, Cod launched several attacks without success. With all her torpedoes expended, she continued to shadow
410-530: A Japanese merchantman . She sent another to the bottom on 27 February, Taisoku Maru (2,473 tons) and two days later attacked a third, only to be forced deep by a concentrated depth charging delivered by a Japanese escort ship. Refitting at Fremantle again from 13 March – 6 April 1944, Cod sailed to the Sulu Sea and the South China Sea off Luzon for her third war patrol. On 10 May, she attacked
492-406: A certain mark after the ship was submerged to restore neutral buoyancy. At the start of the war, these ships could go from fully surfaced to periscope depth in about 45–50 seconds. The superstructure that sat atop the pressure hull provided the main walking deck when the ship was surfaced and was free-flooding and full of water when the ship was submerged. When the dive began, the ship would "hang" for
574-492: A crew of 60–80 men were to be expected to conduct 75-day patrols in the warm waters of the Pacific, these types of features were vital to the health and efficiency of the crew. They could be added without impact to the ship's war fighting abilities due to the extra room of the big fleet ship. The air conditioning in particular had a very practical application, too, besides comfort. Should a submarine submerge for any length of time,
656-549: A few extra seconds while this superstructure filled with water. In an attempt to speed this process, additional limber, or free-flooding, holes were drilled and cut into the superstructure to allow it to flood faster. By midwar, these measures combined with improved crew training got dive times down to 30–35 seconds, very fast for such a large ship and acceptable to the ship's crew. The large size of these ships did negatively affect both surfaced and underwater maneuverability when compared to smaller submarines. No practical fix for this
738-421: A heavily escorted convoy of 32 ships and sank the destroyer Karukaya and cargo merchantman Shohei Maru (7,256 tons) before the escorts drove her down with depth charges . She returned to Fremantle to replenish on 1 June 1944. Cod was put to sea again 3 July on her fourth war patrol. She ranged from the coast of Luzon to Java. She sank the converted net tender , Seiko Maru (708 tons) on 3 August, and
820-599: A key factor in the success of these ships during World War II. Like the previous Tambor/Gar classes, the Gato class could substitute mines in place of torpedoes. For the Mk 10 and Mk 12 type mines used in World War II, each torpedo could be replaced by as many as two mines, giving the submarine a true maximum capacity of 48 mines. However, doctrine was to retain at least four torpedoes on mine laying missions, which further limits
902-409: A larger ship, which would take longer to submerge than a smaller one. Acknowledging this limitation, the bureau designers incorporated a negative (sometimes called a "down express") tank into the design, which was flooded to provide a large amount of negative buoyancy at the start of the dive. Based on later wartime experience, the tank was normally kept full or nearly full at the surface, then emptied to
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#1732780082631984-420: A training platform during the reservists' weekend drills. Twenty-eight Gato -class ships served in this capacity, some as late as 1971. In this role, the ships were rendered incapable of diving and had their propellers removed. They were used strictly as pierside trainers. These were in commission, but classed as "in commission in reserve", thus some were decommissioned and recommissioned on the same day to reflect
1066-722: Is open to visitors daily from May to November. Cod 's keel was laid down by the Electric Boat Company at Groton, Connecticut , on 21 July 1942. The submarine's four main Cleveland Model 16-248 V16 diesel engines and one Cleveland Model 8-268 auxiliary diesel engine were built by General Motors Cleveland Diesel Engine Division on Cleveland's west side. She was launched on 21 March 1943, sponsored by Mrs. G.M. Mahoney, and commissioned on 21 June 1943 with Commander James C. Dempsey , USN in command. Commander Dempsey had already won fame by sinking
1148-432: The kamikaze demonstrated the need for a long-range radar umbrella around the fleet. Surface ships refitted with powerful radar suites were put into service, but they proved vulnerable in this role, as they could be attacked as well, leaving the fleet blind. A submarine, though, could dive and escape aerial attack. Two Gato -class ships ( Grouper and Finback ) received rudimentary conversions to radar pickets before
1230-665: The Cod was in dry dock for repairs was in 1963 in Lorain, Ohio . Cod was closed to tours for approximately 64 days for a dry dock maintenance program. The goal of the $ 1.1 million project, partially funded by a $ 395,050 grant from the Save America's Treasures grant program administered by the U.S. Department of the Interior , is to conserve and restore the underwater hull of the submarine. Cod returned to Cleveland on 18 August 2021 to
1312-543: The Cod was stricken from the Naval Vessel Register . Cod is credited with sinking more than 12 enemy vessels totaling more than 37,000 tons, and damaging another 36,000 tons of enemy shipping. All seven of her war patrols were considered successful and Cod was awarded seven battle stars for her service in World War II , Cod 's battleflag and conning tower both carry a cocktail glass above
1394-507: The Dolph Lundgren motion picture Operation Seawolf to depict World War II German U-Boats . The motion picture released on 7 October 2022. Gato-class submarine The Gato class of submarines were built for the United States Navy and launched in 1941–1943. Named after the lead ship of the class, USS Gato , they were the first mass-production U.S. submarine class of World War II . The Gatos , along with
1476-612: The Gato class. By 1940, a much better developed industrial base and experience gained from the Porpoise -, Salmon -, and Sargo -class ships resulted in the Tambor and Gar classes . Finally, the U.S. Navy had hit the right combination of factors and now had the long-desired fleet submarine. Timing, however, conspired against the actual use of these ships in their assigned role. The attack on Pearl Harbor on 7 December 1941 destroyed
1558-447: The Gato -class ships would be fully capable of routinely operating at 300 feet, a 50-foot (15 m) increase in test depth over the preceding classes. The Gato s were slow divers when compared to some German and British designs, but that was mostly because the Gato s were significantly larger ships. Sufficient fuel bunkerage to provide the range necessary for 75-day patrols from Hawaii to Japan and back could be obtained only with
1640-653: The Gato s a mass-produced class of submarines. Six units were planned in FY41. In the immediate aftermath of the Two-Ocean Navy Act 48 additional units were ordered. By the end of 1941, 33 Gato keels had been laid. The Gato -class design, with a top range of 11,000 nautical miles (20,000 km), was a near-duplicate of the preceding Tambor - and Gar -class ships. The only significant differences were an increase in diving depth from 250 feet (76 m) to 300 feet (91 m), and an extra five feet in length to allow
1722-399: The Gato s and other submarines to sink an enormous amount of Japanese shipping by the end of the war. The Gato s were subjected to numerous exterior configuration changes during their careers, with most of these changes centered on the conning tower fairwater. The large, bulky original configuration proved to be too easy to spot when the boat was surfaced; it needed to be smaller. Secondly,
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#17327800826311804-844: The General Motors Cleveland Diesel Engine Division on Cleveland's west side. Cod acquired two General Motors Cleveland Model 16-248 V16 diesel engines that had originally been used aboard another World War II submarine, USS Stingray (SS-186) . The engines are held in reserve for parts for the restoration of Cod 's engines. The Cod operates an amateur radio station, W8COD, and participates in various amateur radio contests and other events such as Field Day . On 13 June 2021, Cod departed Cleveland under tow to Donjon Shipbuilding & Repair in Erie, Pennsylvania for dry docking to repair and renew her underwater hull. The last time
1886-564: The Gulf of Siam and the coast of Indo-China on her seventh war patrol. On 9 and 10 July she went to the rescue of a grounded Dutch submarine, O-19 , taking its crew on board and destroying the Dutch submarine when it could not be gotten off the reef. This was the only international submarine-to-submarine rescue in history. After returning the Dutch sailors to U.S. Naval Base Subic Bay , between 21 July and 1 August Cod made 20 gunfire attacks on
1968-677: The Pacific Theater of Operations . However, in the summer of 1942, six new Gato s were assigned to Submarine Squadron 50 and sent to Rosneath, Scotland , to patrol the Bay of Biscay and to assist in the Operation Torch landings in North Africa. All in all, they conducted 27 war patrols, but could not claim any verified sinkings. Considered a waste of valuable resources, in mid-1943, all six ships were recalled and transferred to
2050-569: The Pacific War were sampans or otherwise not worth a torpedo, so the deck gun was an important weapon. Most ships began the war with a 3-inch (76 mm)/50 caliber Mk. 17 gun (although some ships received older Mk. 6 mounts due to shortages). The 3-inch gun was the model originally specified for the Gato class, but war experience led to the removal of 4-inch (102 mm)/50 caliber Mk. 9 guns from old S-class submarines to equip front-line ships. Beginning in late 1943, almost all were refitted with
2132-632: The Philadelphia Navy Yard for a overhaul, returning to New London, Connecticut where she was decommissioned and placed in reserve 22 June 1946. Cod was mothballed in 1946, Cod was recommissioned in 1951 to participate in NATO anti-submarine training exercises. During the Cold War , Cod traveled to St. John's, Newfoundland , as well as Cuba and South America . Cod was decommissioned in 1954 and placed in reserve. In 1959 she
2214-545: The Smithsonian Channel war documentary Hell Below to depict USS Tang , U-99 and U-100 . Filming took place aboard the Cod in 2015. The documentary aired on 17 July 2016. Cod was the subject of a two-part documentary on the World of Warships YouTube channel titled Naval Legends: USS Cod. The documentary published on 2 and 4 July 2019. Cod was used for exterior and interior scenes for
2296-472: The South China Sea , she contacted few targets, and launched an attack only once, on 29 November, with unobserved results. She returned to Fremantle, Australia , to refit from 16 December 1943 to 11 January 1944. Cod put to sea for her second war patrol in the South China Sea, off Java , and off Halmahera . On 16 February, she surfaced to sink a sampan by gunfire, and on 23 February, torpedoed
2378-715: The Soviet Navy building hundreds of Type XXI -derived submarines (eventually the 215-strong Whiskey class and dozens of others) in the Atlantic led the U.S. Navy to adapt submarines to specifically hunt other submarines, a radically new role for the 1950s. Concluding that this role did not require a fast or deep-diving submarine (this line of thought would quickly change with the advent of nuclear power), seven Gato s were converted to SSKs ( hunter-killer submarines ) between 1951 and 1953, joining three purpose-built K-1 -class SSKs entering service at that time. The Gato class
2460-426: The U.S. Department of the Interior designated Cod a National Historic Landmark . The memorial is open daily between May and November of each year. Today, Cod is the only World War II United States Navy museum submarine that has not had stairways and doors cut into her pressure hull for public access and is the only World War II Fleet submarine that is still intact and in her wartime configuration. Visitors to
2542-436: The 1201 North Marginal Road berth that she has occupied since her arrival in Cleveland in 1959. On 21 June 2023, Cod celebrated its 80th anniversary of her commissioning during World War II . Cod was subject of the television series The Silent Service and was the main plot for an episode titled The USS Cod's Lost Boarding Party which aired on 30 May 1958 on NBC . Cod was used for exterior and interior scenes for
USS Cod - Misplaced Pages Continue
2624-435: The 1950s provided the U.S. Navy with its first strategic missile capability. Tunny was converted under SCB 28 in 1953 to house and fire this large surface-launched missile and was designated SSG ( guided-missile submarine ). She could carry two of the missiles in a cylindrical hangar on the aft deck. She made strategic deterrent patrols with Regulus until 1964, when the program was discontinued in favor of Polaris . With
2706-619: The Depression-era 1930s, and in great part due to the arrogance and stubbornness of its designer, the Naval Torpedo Station Newport under the Bureau of Ordnance , the "wonder weapon" Mark 14 proved to be full of bugs and very unreliable. They tended to run too deep, explode prematurely, run erratically, or fail to detonate. Bowing to pressure from the submariners in the Pacific, the bureau eventually acknowledged
2788-484: The East China Sea on her sixth war patrol. Assigned primarily to lifeguard duty, she used her deck gun to sink a tugboat and its tow on 17 April, rescuing three survivors, and on 24 April launched an attack on a convoy which resulted in the most severe depth charging of her career. The next day, she sent the minesweeper W-41 to the bottom. On 26 April Cod was threatened by a fire in the aft torpedo room, but
2870-606: The Navy and they were all removed at the first opportunity and replaced by General Motors Cleveland Model 16-278A V-type diesels. The other Gato -class ships received either the Fairbanks-Morse 38D 8-1/8 nine-cylinder opposed-piston engine or the General Motors Cleveland Model 16-248 V-type as original installations. These engines were hardy, rugged, and well liked by the crews and served
2952-579: The Pacific Fleet battle line and along with it the concept of the battleship-led gun battle, as well as 20 years of submarine strategic concept development. It left the fleet submarine without a mission. Fortunately, the same capabilities that would have enabled these submarines to operate with the fleet made them superbly qualified for their new mission of commerce raiding against the Japanese Empire . Timing, however, also conspired to make
3034-459: The Pacific. Once they began to arrive in theater in large numbers in mid-to-late 1942, the Gato s were in the thick of the fight against the Japanese. Many of these ships racked up impressive war records: Flasher , Rasher , and Barb were second, third, and fourth based on tonnage sunk by U.S. submarines. Silversides , Flasher , and Wahoo were third, fourth, and seventh place on
3116-440: The addition of a watertight bulkhead dividing the one large engine room in two, with two diesel generators in each room. The Gato s, along with nearly all of the U.S. Navy fleet-type submarines of World War II, were of partial double-hulled construction. The inner pressure-resisting hull was wrapped by an outer, hydrodynamic hull. The voids between the two hulls provided space for fuel and ballast tanks. The outer hull merged with
3198-454: The after torpedo room converted into an electronics space with torpedoes and tubes removed. They also received a streamlined "sail" in place of the traditional conning tower fairwater. Redesignated as SSRs, these ships were only moderately successful in this role, as the radars themselves proved troublesome and somewhat unreliable. The radars were removed and the ships temporarily reverted to general-purpose submarines after 1959. The threat of
3280-448: The beginning of the war, Gato -class ships, as well as the Gar and Tambor classes, had fully shrouded fairwaters visually similar to modern nuclear submarines. Experience during the war led to the progressive reduction of this structure to reduce visibility and radar profile at the expense of underwater performance and foul-weather operating comfort. Most of the subs in postwar movies show
3362-495: The capacity to 40 mines, and this is often stated as the maximum in various publications. In practice during the war, submarines went out with at least 8 torpedoes, and the largest minefields laid were 32 mines. Post-war, the Mk 49 mine replaced the Mk 12, while the larger Mk 27 mine (in actuality an acoustic-homing torpedo) was also carried which only allowed one mine replacing one torpedo. Twelve submarines of this class built by Electric Boat (SS-253 to SS-264) received what would be
USS Cod - Misplaced Pages Continue
3444-710: The change in status. The large numbers of relatively modern, but surplus U.S. fleet submarines proved to be popular in sales, loans, or leases to allied foreign navies. While most of these ships were of the more capable Balao and Tench classes, some Gato s went overseas, as well. Italy received two ( Barb and Dace ), which received the only GUPPY conversions given to Gato -class ships (Guppy IB). Japan received one ( Mingo ), Brazil two ( Muskallunge and Paddle ), Greece two ( Lapon and Jack ), and Turkey two ( Guitarro and Hammerhead ). The ships transferred to Japan and Brazil did not receive any modernizations (streamlining and snorkels) prior to transfer, but
3526-561: The closely related Balao and Tench classes that followed, accounted for most of the Navy's World War II submarines; they destroyed much of the Japanese merchant marine and a large portion of the Imperial Japanese Navy . In some references, the Gato s are combined with their successors, especially the Balao class. Gato ' s name comes from a species of small catshark . Like most other U.S. Navy submarines of
3608-539: The convoy for another day to report its position. In November she took up a lifeguard station off Luzon, ready to rescue carrier pilots carrying out the series of air strikes on Japanese bases which paved the way for the Battle of Leyte later that month. Cod returned to Pearl Harbor Naval Base on 20 November 1944, and sailed on to a stateside overhaul at Mare Island Naval Shipyard , returning to Pearl Harbor on 7 March 1945. On 24 March she sailed from Pearl Harbor for
3690-413: The crew of O-19 was waiting to throw a party for their rescuers. During that celebration, the two crews learned of the Japanese surrender. To symbolize that moment, another symbol was added to Cod 's battle flag: the name O-19 under a martini glass. Cod sailed for home on 31 August. Arriving at Naval Submarine Base New London , on 3 November after a visit to Miami, Florida , Cod sailed to
3772-428: The desire to incorporate new masts for surface- and air-search radars drove changes to the fairwater and periscope shears. Third, additional gun armament was needed, and cutting down the fairwater provided excellent mounting locations for machine guns and antiaircraft cannon. The modifications (or mods) to the Gato -class conning tower fairwaters were fairly uniform in nature and they can be grouped together based on what
3854-583: The end of World War II, but were not used in this role. After further experimenting with the concept on four Balao and Tench -class boats under Projects Migraine I and II, and realizing that a deep diving depth was not overly important in this role, six Gato s were taken in hand ( Pompon , Rasher , Raton , Ray , Redfin , and Rock ) for conversion under Project Migraine III (aka SCB 12A). They were lengthened by 24 feet (7.3 m) to provide additional space for an air control center and had powerful air-search and height-finding radars installed, with
3936-558: The enemy in preparation for the main fleet action, a titanic gun battle between battleships and cruisers . This was an operational concept born from experience in World War I. To operate effectively in this role, a submarine had to have high surface speed, long range and endurance, and heavy armament. Limitations in submarine design and construction in the 1920s and 1930s made this combination of qualities very difficult to achieve. The U.S. Navy experimented constantly with this concept in
4018-457: The fact they were only two to four years old. Such was the pace of technological development during the war that a submarine with only a 300-foot test depth was going to be of little use, despite being modern in most other aspects. Enough of the Balao and Tench ships, with their greater diving depth, remained that the Gato s were superfluous for front-line missions. The Greater Underwater Propulsion Power Program (GUPPY) modernization program of
4100-699: The final installations of the Hooven-Owens-Rentschler (H.O.R.) double-acting diesel engine . The Navy had been tinkering with this engine off and on since 1937 because its unique design promised nearly twice the horsepower in a package the same size as other diesel engine types. Unfortunately, the Hooven-Owens-Rentschler company ran into severe design and manufacturing problems, and these engines proved to be operational and maintenance nightmares. Frequent breakdowns and utter unreliability had destroyed these engines' reputation with
4182-409: The final result of these modifications. A side benefit of these modifications was the creation of convenient locations for antiaircraft guns. Seventy-seven of these ships were commissioned from November 1941 ( Drum ) through April 1944 ( Croaker ). Twenty of the 52 U.S. submarines lost in World War II were of this class, plus Halibut , a damaged ship that returned to the U.S., but was considered
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#17327800826314264-636: The first Japanese destroyer lost in World War II while in command of the submarine USS S-37 (SS-142) . On 30 August 1943, the American Type C1-B cargo ship SS Alcoa Patriot opened gunfire on Cod in the Caribbean Sea at 12°25′N 076°03′W / 12.417°N 76.050°W / 12.417; -76.050 , about 120 nautical miles (220 km; 140 mi) north-northwest of Barranquilla, Colombia , and 330 nautical miles (610 km; 380 mi) east of
4346-426: The four ships sent to Greece and Turkey did receive snorkels and partial streamlining to the fairwater. Six Gato -class submarines are open to public viewing. They primarily depend on revenue generated by visitors to keep them operational and up to U.S. Navy standards; each ship gets a yearly inspection and a "report card". Some ships, such as Cod and Silversides , have been used in film production. The following
4428-480: The government purchased an old foundry downstream from the main yard, constructed 10 slipways, and turned the yard over to Electric Boat. Called the Victory Yard , it became an integral part of Electric Boat operations. A total of 77 Gato s were built at four different locations (Electric Boat, Manitowoc, Portsmouth, and Mare Island). All of the Gato s (with one exception, Dorado ) would eventually fight in
4510-472: The heat generated by the recently shut-down engines, electronic gear, and 70 warm bodies will quickly raise internal temperatures above 100 °F (38 °C). High humidity generated by tropical waters will quickly condense and begin dripping into equipment, eventually causing electrical shorts and fires. Air conditioning, acting mostly as a dehumidifier, virtually eliminates this problem and greatly increases mechanical and electrical reliability. It proved to be
4592-471: The junks, motor sampans, and barges which were all that remained to supply the Japanese at Singapore . After inspecting each contact to rescue civilian crew, Cod sank it by gunfire and torpedoes, sending to the bottom a total of 23. On 1 August, an enemy plane strafed Cod , forcing her to dive, leaving one of her boarding parties behind. The men were rescued two days later by USS Blenny (SS-324) . When Cod returned to Fremantle 13 August 1945,
4674-564: The late 1940s largely passed these ships by. Only Barb and Dace received GUPPY conversions; these were austere GUPPY IB modernizations under project SCB 47A prior to their transfer to the Italian Navy . However, the U.S. Navy found itself new missions to perform, and for some of these the Gato s were well suited. The last two Gato -class ships active in the U.S. Navy were Rock and Bashaw , which were both decommissioned on 13 September 1969 and sold for scrap. The advent of
4756-463: The list for the number of ships sunk. Gato -class ships sank four Japanese submarines: I-29 , I-168 , I-351 , and I-42 ; while only losing one in exchange, Corvina to I-176 . Their principal weapon was the steam-powered Mark 14 torpedo in the early war years, with the electric Mark 18 torpedo supplementing the Mark 14 in late 1943. Due to a stunted research-and-development phase in
4838-416: The middle of the range of numbers for the Balao class (SS-285 to SS-416, SS-425, and SS-426). Manitowoc was a designated follow-on yard to Electric Boat; they used construction blueprints and plans supplied by Electric Boat and used many of the same suppliers. The government-owned shipyards ( Portsmouth Naval Shipyard and Mare Island Naval Shipyard ) began to make the transition to the new Balao design in
4920-520: The name O-19 to commemorate the rescue and the party. [REDACTED] [REDACTED] [REDACTED] A group of Cleveland residents formed the Cleveland Coordinating Committee to Save Cod , Inc., with the goal of preserving the ship as a memorial. On 25 January 1976, the United States Navy gave guardianship of the submarine to the group. Cod opened for public tours as a floating memorial on 1 May 1976. In 1986,
5002-665: The new nuclear subs: Tullibee , commissioned in 1960, introduced the bow-mounted sonar sphere. Tullibee was an attempt to develop a slow but ultra-quiet nuclear-powered SSK equivalent; no others were built due to her unexpectedly high cost relative to the more capable Thresher , and the SSK mission was folded into the regular attack submarine role. The slow and less capable diesel SSKs were decommissioned or reassigned to other roles in 1959, and all except Croaker and Cavalla (eventually preserved as memorials) were scrapped in 1968 and 1969. The Regulus nuclear cruise missile program of
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#17327800826315084-739: The northern entrance to the Panama Canal . Less than three hours later, Alcoa Patriot again sighted Cod and fired on her at 12°02′N 076°04′W / 12.033°N 76.067°W / 12.033; -76.067 , about 105 nautical miles (194 km; 121 mi) northwest of Barranquilla and 310 nautical miles (570 km; 360 mi) east of the northern entrance to the Panama Canal . Cod suffered no damage or casualties in either incident. Cod arrived in Brisbane, Australia , on 2 October 1943 to prepare for her first war patrol . She sailed from there 20 days later. Penetrating
5166-410: The period, ships of the Gato class were given the names of marine creatures. The Gato -class ships were considered to be fleet submarines , designed to operate as adjuncts to the main battle fleet, based on standard-type battleships since World War I . They were to scout out ahead of the fleet and report on the enemy fleet's composition, speed, and course, then they were to attack and whittle down
5248-517: The post-World War I years, producing a series of submarines with less than stellar qualities and reliability, the AA-1 class (also known as the T class) and the V-boats , of which V-1 through V-3 were an unsuccessful attempt to produce a fleet submarine. By 1931, the experimental phase of fleet submarine development was over and the Navy began to make solid progress towards what would eventually be
5330-419: The pressure hull at both ends in the area of the torpedo room bulkheads, hence the "partial" double hull. Operational experience with earlier ships led the naval architects and engineers at the Navy's Bureau of Construction and Repair to believe that they had been unduly conservative in their estimates of hull strength. Without changing the construction or thickness of the pressure hull steel, they decided that
5412-452: The problems in the Mark 14 and largely corrected them by late 1943. The Mark 18 electric torpedo was a hastily copied version of captured German G7e torpedoes and was rushed into service in the fall of 1943. Unfortunately, it also was full of faults, the most dangerous being a tendency to run in a circular pattern and come back at the sub that fired it. Once perfected, both types of torpedoes proved to be reliable and effective weapons, allowing
5494-542: The retirement of the Regulus missile system in 1965, Tunny was converted into a troop transport in 1966. She was redesignated as an APSS (transport submarine), replacing Perch in this role. Her Regulus hangar became a lockout chamber for UDT , SEAL , and Marine Force Recon teams in the Vietnam War . On 1 January 1969, Tunny ' s designation was changed to LPSS (amphibious transport submarine); however, she
5576-411: The ship use the same vertical ladders and hatches that were used by her crew. The ship's 5-inch deck gun, Mark IV Torpedo Data Computer , SJ-5 radar , Sound-powered telephone , and all five diesel engines have been restored and are fully operable. Cleveland can claim partial credit as Cod 's birthplace, since the submarine's four main diesel engines, and one auxiliary diesel engine were built at
5658-466: The ship's crew brought the fire under control and manually launched a torpedo already in its tube before the fire could detonate it. QM2c Lawrence E. Foley and S1c Andrew G. Johnson were washed overboard while freeing the torpedo room hatch. S1c Foley was recovered the next morning, but QM2c Johnson drowned during the night. This was Cod 's only fatality during World War II . After refitting at Guam between 29 May and 26 June 1945, Cod put out for
5740-481: The ships quite well. Both the Fairbanks-Morse and General Motors engines were two-stroke cycle types. Two manufacturers supplied electric motors for the Gato class. Elliott Company motors were fitted primarily to boats with Fairbanks-Morse engines. General Electric motors were fitted primarily to boats with General Motors engines, but some Fairbanks-Morse boats received General Electric motors. At
5822-460: The space was used as berthing for technicians and as a sonar lab. Flying Fish was decommissioned in 1954, but Grouper continued in the test role until 1968. Interested in maintaining a ready pool of trained reservists , the Navy assigned numerous fleet ships to various coastal and inland ports (even in Great Lakes ports such as Chicago , Cleveland , and Detroit ) where they served as
5904-581: The summer of 1942. Electric Boat, due to the huge backlog of Gato -class construction, was not ready to make the transition to the new design until January 1943. Manitowoc had already completed their allotted production run of Gato s and could not switch over to the Balao design until Electric Boat supplied them with the plans. Faced with a work stoppage while they waited for Electric Boat to catch up, managers at Manitowoc got permission to complete four additional boats (SS-361 through SS-364) to Electric Boat's Gato -class plans. Manitowoc's first Balao -class ship
5986-473: The test role for a few years under the designation AGSS. In 1957, she converted back to the oiler/tanker role and carried the designation AOSS. This time, she experimented with refueling seaplanes at sea, which was potentially important, as refueling the nuclear-capable Martin P6M Seamaster at sea could improve the Navy's strategic strike capabilities. However, this mission, too, was dropped and Guavina
6068-412: The two forward diesel engines, and they received a snorkel . Grouper was converted under project SCB 58 as the test ship for the concept, having her sonar array at the forward end of the sail instead of the better position at the bow. The other ships in the program included Angler , Bashaw , Bluegill , Bream , Cavalla , and Croaker . Eventually more advanced sonars were installed on
6150-482: The war started. Gato herself was laid down on 5 October 1940 by the Electric Boat Company at Groton, Connecticut , and commissioned 31 December 1941. Due to their large construction capacity, more than half (41) of the class was built at Electric Boat facilities; three new slipways were added to the north yard and four slipways were added to the south yard to accommodate their production. In addition,
6232-516: Was Hardhead . The Gato boats were authorized in appropriations for Fiscal Year 1941, as part of President Franklin Roosevelt 's proclamation of "limited emergency" in September 1939. The first boat laid down was actually USS Drum at Portsmouth Naval Shipyard on 11 September 1940. She was commissioned on 1 November 1941, and was the only Gato -class ship in commission when
6314-570: Was available due to the limitations of the installed hydraulic systems used to move the rudder. Although a point of concern, the turning radius was still acceptable. After the war, a few fleet ships were fitted with an additional rudder topside at the very stern. The class of ships had numerous crew comforts including showers, air conditioning, refrigerated storage for food, generous freshwater distilling units , clothes washers, and bunks for nearly every crew member; these were luxuries virtually unheard of in other navies. The bureau designers felt that if
6396-401: Was chosen because large numbers were available in the reserve fleet should rapid mobilization become necessary, and the deeper-diving classes were more suitable for GUPPY rather than SSK conversions. A streamlined GUPPY-style sail was installed, a large sonar array was wrapped around the bow (losing two torpedo tubes in the process), the ships were extensively silenced including the removal of
6478-491: Was decommissioned. The development of advanced sonar systems took on a great deal of importance in the 1950s, and several fleet ships were outfitted with various strange-looking sonar transducer arrays and performed extensive tests. Two Gato s, Flying Fish and Grouper (previously the prototype hunter-killer ship) were assigned to these duties and proved to be key players in the development of new sonar capabilities. Grouper had all her forward torpedo tubes removed and
6560-513: Was done when: Variations on the above mods included the 1A (shortened navigation bridge), 2A (plating removed from periscope shears), and the 3A and 4A (which moved the SJ radar mast aft of the periscopes). The conning tower fairwater of Flasher is preserved in Groton, Connecticut, in the mod 4A configuration, with two single 40 mm Bofors mounts. Deck guns varied during the war. Many targets in
6642-451: Was replaced by Grayback and decommissioned in June of that year. Guavina was converted under SCB 39 to a SSO in 1950 to carry fuel oil, gasoline, and cargo to amphibious beachheads. She received additional "saddle" tanks wrapped around her outer hull to carry these fuels and a streamlined sail. After a few tests, the concept was dropped in 1951 as impractical, and Guavina served in
6724-488: Was towed through the St. Lawrence Seaway to Cleveland, Ohio and was used as a training vessel. The Cod served as a training platform during the reservists' weekend drills. The Cod was reclassified first as an Auxiliary Submarine (AGSS-224) on 1 December 1962, and later as a Unclassified Miscellaneous Submarine (IXSS-224) on 30 June 1971. The Cod was in commission, but classed as "in commission in reserve". On 15 December 1971,
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