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Balao-class submarine

The Balao class was a design of United States Navy submarine used during World War II, and with 120[2] boats completed, the largest class of submarines in the United States Navy. An improvement on the earlier Gato class, the boats had slight internal differences. The most significant improvement was the use of thicker, higher yield strength steel in the pressure hull skins and frames,[5] which increased their test depth to 400 feet (120 m). Tang actually achieved a depth of 612 ft (187 m) during a test dive,[6] and exceeded that test depth when taking on water in the forward torpedo room while evading a destroyer.[7][8]

USS Balao in 1944
Class overview
NameBalao class
Builders
Operators
Preceded byGato class
Succeeded byTench class
Built1942–1946[1]
In commission1943–present[1]
Completed120[2]
Cancelled62[2]
Active1
Lost14 (11 in United States service, 3 in foreign service)[2]
Retired105[2]
Preserved8[2]
General characteristics
TypeDiesel-electric submarine
Displacement1,526 tons (1,550 t) surfaced,[2] 2,391–2,424 tons (2,429–2463 t) submerged[2]
Length311 ft 6 in–311 ft 10 in (94.9–95.0 m)[2]
Beam27 ft 3 in–27 ft 4 in (8.3 m)[2]
Draft16 ft 10 in (5.13 m) maximum[2]
Propulsion
Speed20.25 knots (38 km/h) surfaced,[3] 8.75 knots (16 km/h) submerged[3]
Range11,000 nautical miles (20,000 km) surfaced @ 10 knots (19 km/h)[3]
Endurance48 hours @ 2 knots (3.7 km/h) submerged,[3] 75 days on patrol
Test depth400 ft (120 m)[3]
Complement10 officers, 70–71 enlisted men[3]
Armament

Design edit

The Balaos were similar to the Gatos, except they were modified to increase test depth from 300 ft (90 m) to 400 ft (120 m). In late 1941, two of the Navy's leading submarine designers, Captain Andrew McKee and Commander Armand Morgan, met to explore increasing diving depth in a redesigned Gato. A switch to a new High-Tensile Steel (HTS) alloy, combined with an increase in hull thickness from 916 inch (14.3 mm) to 78 inch (22.2 mm), would result in a test depth of 450 ft (140 m) and a collapse depth of 900 ft (270 m). However, the limited capacity of the trim pump at deep depths, and lack of time to design a new pump, caused Rear Admiral E. L. Cochrane, Chief of the Bureau of Ships, to limit test depth to 400 ft (120 m). Fortunately, in 1944 a redesigned Gould centrifugal pump replaced the noisy early-war pump, and effective diving depth was increased.[9]

The Balaos incorporated the fairwater, conning tower and periscope shears reduction efforts that were being retrofitted to the Gatos and the preceding classes in the original design, refining the reductions and reducing the sail to the smallest practical size. By the time the boats began to be launched, lessons learned from patrol reports had been worked into the design and the bridge and sail proved to be efficiently laid out, well equipped, and well liked by the crews.[10]

For the masts and periscope shears, the original arrangement for both the Government and Electric Boat designs had (forward to aft) the two tapered cone shaped periscope support shears, followed by a thin mast for the SJ surface search radar, and then by a thin mast for the SD air search radar. There were minor differences in how the periscopes were braced against vibration, but both designs were nearly identical. About halfway through their production run, Electric Boat altered their design, moving the SJ radar mast forward of the periscopes, then altered it again a few boats later by enlarging the SD radar mast. Late in the war, many Balaos built with the original design had the SD air search radar moved slightly aft onto a thickened and taller mast. These mast arrangements, along with the tremendous variation in the gun layout as the war progressed account for the numerous exterior detail differences among the boats, to the point that at any given time no two Balaos looked exactly alike.[11]

Engines edit

The propulsion of the Balao-class submarines was generally similar to that of the preceding Gato-class. Like their predecessors, they were true diesel-electric submarines: their four diesel engines powered electrical generators, and electric motors drove the shafts. There was no direct connection between the main engines and the shafts.

 
General Motors Cleveland Model 16-248 diesel engine
 
Fairbanks-Morse Model 38D8⅛ diesel engine

Balao-class submarines received main engines from one of two manufacturers. General Motors Cleveland Model 16-278A V-type diesels or Fairbanks-Morse 38D 8-1/8 nine-cylinder opposed-piston engine. The General Motors Cleveland Model 16-248 V-type as original installations, while boats from Sand Lance onward received 10-cylinder engines. Earlier General Motors boats received Model 16-248 engines, but beginning with Perch Model 16-278A engines were used. In each case, the newer engines had greater displacement than the old, but were rated at the same power; they operated at lower mean effective pressure for greater reliability. [12] Both the Fairbanks-Morse and General Motors engines were two-stroke cycle types.[13]

Two submarines, Unicorn and Vendace, were to receive Hooven-Owens-Rentschler (H.O.R.) diesels, which proved unreliable on previous classes, but both boats were cancelled.

Two manufacturers supplied electric motors for the Balao 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. Allis-Chalmers motors were to be used in SS-530 through SS-536, but those seven boats were cancelled before even receiving names.[14]

Earlier submarines carried four high-speed electric motors (two per shaft), which had to be fitted with reduction gears to slow their outputs down to an appropriate speed for the shafts. This reduction gearing was very noisy, and made the submarine easier to detect with hydrophones. Eighteen late Balao-class submarines received low-speed double armature motors which drove the shafts directly and were much quieter, but this improvement was not universally fitted until the succeeding Tench class.[15] The new direct drive electric motors were designed by the Bureau of Ships' electrical division under Captain Hyman G. Rickover, and were first equipped on Sea Owl.[16] On all US World War II-built boats, as the diesel engines were not directly connected to the shafts, the electric motors drove the shafts all the time.

Deck guns edit

 
5"/25 caliber gun on USS Bowfin
 
20 mm Oerlikon twin mount displayed near HMCS Haida

Many targets in the Pacific War were sampans or otherwise not worth a torpedo, so the deck gun was an important weapon. Early Balaos began their service with a 4-inch (102 mm)/50 caliber Mk. 9 gun. Due to war experience, most were re-armed with a 5-inch (127 mm)/25 caliber Mk. 17 gun, similar to mounts on battleships and cruisers but built as a "wet" mount with corrosion resistant materials, and with power-operated loading and aiming features removed. This conversion started in late 1943, and some boats had two of these weapons beginning in late 1944. Spadefish, commissioned in March 1944, was the first newly built submarine with the purpose-built 5-inch/25 submarine mount. Additional anti-aircraft guns included single 40 mm Bofors and twin 20 mm Oerlikon mounts, usually one of each.[17][18]

Mine armament edit

Like the previous Tambor/Gar and Gato classes, the Balao 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 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 was also carried which only allowed one mine replacing one torpedo.[19]

Ships in class edit

This was the most numerous US submarine class; 120 of these boats were commissioned from February 1943 through September 1948, with 12 commissioned postwar. Nine of the 52 US submarines lost in World War II were of this class, along with five lost postwar, including one in Turkish service in 1953, one in Argentine service in the Falklands War of 1982, and one in Peruvian service in 1988.[2][20] Also, Lancetfish flooded and sank while fitting out at the Boston Naval Shipyard on 15 March 1945. She was raised but not repaired, and was listed with the reserve fleet postwar until struck in 1958. Some of the class served actively in the US Navy through the middle 1970s, and one (Hai Pao ex-Tusk) is still active in Taiwan's Republic of China Navy.

SS-361 through SS-364 were initially ordered as Balao-class, and were assigned hull numbers that fall in the middle of the range of numbers for the Balao class (SS-285 to SS-416 & 425–426).[21] Thus, in some references they are listed with that class.[22] However, they were completed by Manitowoc as Gatos, due to an unavoidable delay in Electric Boat's development of Balao-class drawings. Manitowoc was a follow yard to Electric Boat, and was dependent on them for designs and drawings.[23][2] Also, USS Trumpetfish (SS-425) and USS Tusk (SS-426) are listed with the Tench class in some references, as their hull numbers fall in the range of that class.[24][25]

Cancellations edit

A total of 125 U.S. submarines were cancelled during World War II, all but three between 29 July 1944 and 12 August 1945. The exceptions were three Tench-class boats, cancelled 7 January 1946. References vary considerably as to how many of these were Balaos and how many were Tenches. Some references simply assume all submarines numbered after SS-416 were Tench class; however, Trumpetfish (SS-425) and Tusk (SS-426) were completed as Balaos.[26][27] This yields 10 cancelled Balao-class, SS-353-360 and 379–380. The Register of Ships of the U. S. Navy differs, considering every submarine not specifically ordered as a Tench to be a Balao, and further projecting SS-551-562 as a future class.[2] This yields 62 cancelled Balao class, 51 cancelled Tench class, and 12 cancelled future class. Two of the cancelled Balao-class submarines, Turbot (SS-427) and Ulua (SS-428), were launched incomplete and served for years as experimental hulks at Annapolis and Norfolk, Virginia. The cancelled hull numbers, including those launched incomplete, were SS-353–360 (Balao), 379–380 (Balao), 427–434 (Balao), 436–437 (Tench), 438–474 (Balao), 491–521 (Tench), 526–529 (Tench), 530–536 (Balao), 537–550 (Tench), and 551–562 (future).[2]

Service history edit

World War II edit

 
Periscope photo from USS Wahoo of a Japanese merchant ship sinking.

The Balaos began to enter service in mid-1943, as the many problems with the Mark 14 torpedo were being solved. They were instrumental in the Submarine Force's near-destruction of the Japanese merchant fleet and significant attrition of the Imperial Japanese Navy. One of the class, Archerfish, brought down what remains the largest warship sunk by a submarine, the Japanese aircraft carrier Shinano (59,000 tons). Tang, the highest-scoring of the class, sank 33 ships totaling 116,454 tons, as officially revised upward in 1980.[28]

Nine Balaos were lost in World War II, while two US boats were lost in postwar accidents. In foreign service, one in Turkish service was lost in a collision in 1953, one in Peruvian service was lost in a collision in 1988, and Catfish was sold to the Argentinian Navy. She was renamed the ARA Santa Fe (S-21) and was lost in the 1982 Falklands War after being damaged, when she sank while moored pierside. Santa Fe was refloated and disposed of a few years after the war by being taken out to deep water and scuttled.

Additionally, Lancetfish, commissioned but incomplete and still under construction, flooded and sank pierside at the Boston Navy Yard on 15 March 1945, after a yard worker mistakenly opened the inner door of an aft torpedo tube that already had the outer door open. No personnel were lost in the accident and she was raised, decommissioned, and never completed or repaired.[2][29][30] Her 42 days in commission is the record for the shortest commissioned service of any USN submarine. Postwar, she was laid up in the Reserve Fleet until stricken in 1958 and scrapped in 1959.

Balao class losses edit

Name and hull number Date Notes
USS Cisco (SS-290) 28 September 1943 Lost to air attack and gunboat Karatsu (ex-USS Luzon)
USS Capelin (SS-289) December 1943 Cause of loss unknown, possibly naval mine or attack by the Japanese minelayer Wakataka
USS Escolar (SS-294) 17 October - 13 November 1944 Probably lost to enemy mine
USS Shark (SS-314) 24 October 1944 Attacked by the Japanese destroyer Harukaze
USS Tang (SS-306) 25 October 1944 Sunk by a circular run of own torpedo
USS Barbel (SS-316) 4 February 1945 Air attack
USS Kete (SS-369) March 1945 Cause of loss unknown, possibly to mine or enemy action
USS Lagarto (SS-371) 3 May 1945 Attacked by Japanese minelayer Hatsutaka
USS Bullhead (SS-332) 6 August 1945 Sunk by Japanese air attack by a Mitsubishi Ki-51
USS Cochino (SS-345) 26 August 1949 Accidental fire
TCG Dumlupinar (D-6) (formerly USS Blower (SS-325)) 4 April 1953 In Turkish service, lost in collision with MV Naboland
USS Stickleback (SS-415) 28 May 1958 Collision with USS Silverstein (DE-534)
ARA Santa Fe (S-21) (formerly USS Catfish (SS-339)) 25 April 1982 In Argentine service, disabled by helicopter attack, sank pierside, and was captured by ground forces during Operation Paraquet - the British recapture of South Georgia during the Falklands War. After the war, she was scuttled in deep water.
BAP Pacocha (SS-48) (formerly USS Atule (SS-403)) 26 August 1988 In Peruvian service, lost in collision with Japanese fishing trawler Kiowa Maru

Notable submarines edit

  • Tang was second on the list of number of ships sunk with 33 and first on the list of tonnage with 116,454. Her third war patrol was the most successful of any U.S. submarine with 10 ships for 39,100 tons. Sunk in the Taiwan Strait by a circular run of her own torpedo, her skipper Richard O'Kane and eight others escaped; some escaped the submerged wreck with the only known successful use of the Momsen Lung. Tang's survivors were imprisoned by the Japanese for the rest of the war. After his release following the Japanese surrender, Richard O'Kane was awarded the Medal of Honor for his actions commanding Tang during the convoy battles of 24 and 25 October 1944.
  • Archerfish sank the aircraft carrier Shinano. Shinano is the largest ship sunk by a submarine. Commander Enright was awarded the Navy Cross.

Postwar service history edit

Postwar, 55 Balaos were modernized under the Fleet Snorkel and Greater Underwater Propulsion Power (GUPPY) programs, with some continuing in US service into the early 1970s. The last Balao-class submarine in United States service was USS Clamagore (SS-343), which was decommissioned in June 1975.[31] Seven were converted to roles as diverse as guided-missile submarines (SSG) and amphibious transport submarines (SSP). 46 were transferred to foreign navies for years of additional service, some into the 1990s, and Tusk remains active in Taiwan's Republic of China Navy as Hai Pao.

Naval Reserve trainer edit

Interested in maintaining a ready pool of trained reservists, the Navy assigned at least 58 submarines from 1946 to 1971 to various coastal and inland ports (even in Great Lakes ports like Cleveland, Chicago, and Detroit), where they served as training platforms during the Reservists' weekend drills. At least 20 Balao-class boats served in this capacity. In this role, the boats 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 service in reserve", thus some were decommissioned and recommissioned on the same day to reflect the change in status.[32][33][34]

Foreign service edit

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. 46 Balao-class submarines were transferred to foreign navies, some shortly after World War II, others after serving nearly 30 years in the US Navy. These included 17 to Turkey, 2 to Greece, 3 to Italy, 2 to the Netherlands, 5 to Spain, 2 to Venezuela, 4 to Argentina, 5 to Brazil, 2 to Chile, 2 to Peru, 1 to Canada and 1 to Taiwan.[34] One of the Venezuelan boats, ARV Carite (S-11) formerly USS Tilefish (SS-307), featured in the 1971 film Murphy's War with some cosmetic modification.

GUPPY and other conversions edit

At the end of World War II, the US submarine force found itself in an awkward position. The 111 remaining Balao-class submarines, designed to fight an enemy that no longer existed, were obsolete despite the fact they were only one to three years old. The German Type XXI U-boat, with a large battery capacity, streamlining to maximize underwater speed, and a snorkel, was the submarine of the immediate future. The Greater Underwater Propulsion Power Program (GUPPY) conversion program was developed to give some Balao- and Tench-class submarines similar capabilities to the Type XXI. When the cost of upgrading numerous submarines to GUPPY standard became apparent, the austere "Fleet Snorkel" conversion was developed to add snorkels and partial streamlining to some boats. A total of 36 Balao-class submarines were converted to one of the GUPPY configurations, with 19 additional boats receiving Fleet Snorkel modifications. Two of the GUPPY boats and six of the Fleet Snorkel boats were converted immediately prior to transfer to a foreign navy. Most of the 47 remaining converted submarines were active into the early 1970s, when many were transferred to foreign navies for further service and others were decommissioned and disposed of.[31]

Although there was some variation in the GUPPY conversion programs, generally the original two Sargo batteries were replaced by four more compact Guppy (GUPPY I and II only) or Sargo II batteries via significant re-utilization of below-deck space, usually including removal of auxiliary diesels. All of these battery designs were of the lead-acid type. This increased the total number of battery cells from 252 to 504; the downside was the compact batteries had to be replaced every 18 months instead of every 5 years. The Sargo II battery was developed as a lower-cost alternative to the expensive Guppy battery.[35] All GUPPYs received a snorkel, with a streamlined sail and bow. Also, the electric motors were upgraded to the direct drive double-armature type, along with modernized electrical and air conditioning systems. All except the austere GUPPY IB conversions for foreign transfer received sonar, fire control, and Electronic Support Measures (ESM) upgrades.[36]

The Fleet Snorkel program was much more austere than the GUPPY modernizations, but is included here as it occurred during the GUPPY era. The GUPPY and Fleet Snorkel programs are listed in chronological order: GUPPY I, GUPPY II, GUPPY IA, Fleet Snorkel, GUPPY IIA, GUPPY IB, and GUPPY III.

GUPPY I edit

Two Tench-class boats were converted as prototypes for the GUPPY program in 1947. Their configuration lacked a snorkel and was not repeated, so no Balaos received this conversion.

GUPPY II edit

 
USS Catfish in GUPPY II configuration

This was the first production GUPPY conversion, with most conversions occurring in 1947–49. Thirteen Balao-class boats (Catfish, Clamagore, Cobbler, Cochino, Corporal, Cubera, Diodon, Dogfish, Greenfish, Halfbeak, Tiru, Trumpetfish, and Tusk) received GUPPY II upgrades. This was the only production conversion with Guppy batteries.

GUPPY IA edit

 
USS Caiman (SS-323) after GUPPY IA conversion

This was developed as a more cost-effective alternative to GUPPY II. Nine Balao-class boats (Atule, Becuna, Blackfin, Blenny, Caiman, Chivo, Chopper, Sea Poacher, and Sea Robin) were converted in 1951–52. The less expensive Sargo II battery was introduced, along with other cost-saving measures.

Fleet Snorkel edit

 
USS Sabalo after a Fleet Snorkel conversion

The Fleet Snorkel program was developed as an austere, cost-effective alternative to full GUPPY conversions, with significantly less improvement in submerged performance. Twenty-three Balao-class boats (Bergall, Besugo, Brill, Bugara, Carbonero, Carp, Charr, Chub, Cusk, Guitarro, Kraken, Lizardfish, Mapiro, Mero, Piper, Sabalo, Sablefish, Scabbardfish, Sea Cat, Sea Owl, Segundo, Sennet, and Sterlet) received this upgrade, six immediately prior to foreign transfer. Most Fleet Snorkel conversions occurred 1951–52. Unlike the GUPPY conversions, the original pair of Sargo batteries were not upgraded. Each boat received a streamlined sail with a snorkel, along with upgraded sonar, air conditioning, and ESM. The original bow was left in place, except on three boats (Piper, Sea Owl, and Sterlet) that received additional upper bow sonar equipment.[37] A few boats initially retained the 5"/25 deck gun, but this was removed in the early 1950s.

GUPPY IIA edit

 
USS Razorback (SS-394) after GUPPY IIA conversion

This was generally similar to GUPPY IA, except one of the forward diesel engines was removed to relieve machinery overcrowding. Thirteen Balao-class boats (Bang, Diodon, Entemedor, Hardhead, Jallao, Menhaden, Picuda, Pomfret, Razorback, Ronquil, Sea Fox, Stickleback, and Threadfin) received GUPPY IIA upgrades in 1952–54. One of these, Diodon, had previously been upgraded to GUPPY II.

GUPPY IB edit

This was developed as an austere upgrade for two Gato-class and two Balao-class boats (Hawkbill and Icefish) prior to transfer to foreign navies in 1953–55. They lacked the sonar and electronics upgrades of other GUPPY conversions.

GUPPY III edit

 
USS Clamagore (SS-343)

Nine submarines, six of them Balaos (Clamagore, Cobbler, Corporal, Greenfish, Tiru, and Trumpetfish), were upgraded from GUPPY II to GUPPY III in 1959-63 as part of the Fleet Rehabilitation and Modernization II (FRAM II) program. All except Tiru, the pilot conversion, were lengthened by 15 feet in the forward part of the control room to provide a new sonar space, berthing, electronics space, and storerooms. Tiru was lengthened only 12.5 feet, and both forward diesel engines were removed.[38] The other GUPPY IIIs retained all four engines. A taller "Northern" sail was included, to allow improved surfaced operations in rough seas; this was also backfitted to some other GUPPYs. The BQG-4 Passive Underwater Fire Control Feasibility Study (PUFFS) sonar system, with its three tall domes topside, was fitted. Additionally, fire control upgrades allowed the Mark 45 nuclear torpedo to be used.[39]

Radar picket edit

The advent of the kamikaze demonstrated the need for a long range radar umbrella around the fleet. Radar picket destroyers and destroyer escorts 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. Four submarines including the Balao-class boat Threadfin prototyped the concept at the end of World War II but were not used in this role.[40] Ten fleet submarines were converted for this role 1946-53 and redesignated SSR as radar picket submarines. Burrfish was the only Balao-class SSR. Experiments on the first two SSR submarines under the appropriately named Project Migraine I showed that placement of the radars on the deck was inadequate and that more room was needed for electronics. Thus Burrfish was given the Migraine II (project SCB 12) conversion, which placed a Combat Information Center (CIC) in the space formerly occupied as the aft battery room. The after torpedo room was stripped and converted into berthing, and the boat lost two of her forward torpedo tubes to make room for additional berthing and electronics. The radars were raised up off the deck and put on masts, giving them a greater range and hopefully greater reliability.[36]

The SSRs proved only moderately successful, as the radars themselves proved troublesome and somewhat unreliable, and the boats' surface speed was insufficient to protect a fast-moving carrier group. The radars were removed and the boats reverted to general purpose submarines after 1959. Burrfish was decommissioned in 1956 and, with her radar equipment removed, transferred to Canada as HMCS Grilse (SS-71) in 1961.[41]

Guided-missile submarine edit

 
USS Cusk fires a Loon missile

The Regulus nuclear cruise missile program of the 1950s provided the US Navy with its first strategic strike capability. It was preceded by experiments with the JB-2 Loon missile, a close derivative of the German V-1 flying bomb, beginning in the last year of World War II. Submarine testing of Loon was performed 1947–53, with Cusk and Carbonero converted in to guided-missile submarines as test platforms in 1947 and 1948 respectively. Initially the missile was carried on the launch rail unprotected, thus the submarine was unable to submerge until after launch. Cusk was eventually fitted with a watertight hangar for one missile and redesignated as an SSG. Following a brief stint as a cargo submarine, Barbero was converted in 1955 to carry two surface-launched Regulus missiles and was redesignated as an SSG, joining the Gato-class Tunny in this role. She made strategic deterrent patrols with Regulus until 1964, when the program was discontinued in favor of Polaris.[42] A number of fleet boats were equipped with Regulus guidance equipment 1953–64, including Cusk and Carbonero following the Loon tests.

Transport submarine edit

 
A Sikorsky HRS helicopter touches down on Sealion as a transport submarine

Sealion and Perch were converted to amphibious transport submarines in 1948 and redesignated as SSPs. Initially, they were equipped with a watertight hangar capable of housing a Landing Vehicle Tracked (LVT), and retained one 5-inch (127 mm)/25 caliber deck gun for shore bombardment. Both torpedo rooms and one engine room were gutted to provide space for embarked Special Operations Forces (SOF) and their equipment. Snorkels were fitted. Due to the extra personnel, to avoid excessive snorkeling they were equipped with a CO2 scrubber and extra oxygen storage. Initially, a squadron of 12 SSPs was considered, capable of landing a reinforced Marine battalion, but only two Balao-class SSPs (out of four overall) were actually converted. Perch landed British commandos on one raid in the Korean War, and operated in the Vietnam War from 1965 until assignment to Naval Reserve training in 1967 and decommissioning in 1971, followed by scrapping in 1973. Perch was replaced in the Pacific Fleet transport submarine role by Tunny in 1967 and Grayback in 1968. Sealion operated in the Atlantic, deploying for the Cuban Missile Crisis and numerous SOF-related exercises. She was decommissioned in 1970 and expended as a target in 1978. The LVT hangar and 5-inch gun were removed from both boats by the late 1950s. They went through several changes of designation in their careers: ASSP in 1950, APSS in 1956, and LPSS in 1968.[43][2]

Sonar test submarine edit

Baya was redesignated as an auxiliary submarine (AGSS) in 1949 and converted to a sonar test submarine in 1958–59 to test a system known as LORAD. This included a 12-foot (3.7 m) extension aft of the forward torpedo room, with 40-foot (12 m) swing-out arrays near the bow. Later, three large domes were installed topside for a wide aperture array.[44]

Cargo submarine edit

Barbero was converted to a cargo submarine and redesignated as an SSA in 1948. The forward engine room, after torpedo room, and all reload torpedo racks were gutted to provide cargo space. From October 1948 until March 1950, she took part in an experimental program to evaluate her capabilities as a cargo carrier. Experimentation ended in early 1950, and she was decommissioned into the reserve on 30 June 1950. In 1955, she was converted to a Regulus missile submarine and redesignated as an SSG.[45]

Operational submarines edit

As of 2007 Tusk, a Balao-class submarine, was one of the last two operational submarines in the world built during World War II. The boat was transferred to Taiwan's Republic of China Navy in the early 1970s. The Tench-class ex-Cutlass is the other one. They are named Hai Pao and Hai Shih, respectively, in Taiwanese service.[46][47]

Museums edit

Six Balao-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 boat gets a yearly inspection and a "report card". Some boats, like Batfish and Pampanito, encourage youth functions and allow a group of volunteers to sleep overnight in the crew's quarters.

Surviving ships edit

The following is a complete list of Balao-class museum boats:

USS Clamagore (SS-343) served as a museum boat at Patriots Point in Charleston, South Carolina until being closed in 2021 and scrapped two years later. Additionally the USS Ling (SS-297) is aground in the Hackensack River at the site of the former New Jersey Naval Museum. As of 2022, efforts to find a new home for this vessel have been unsuccessful.

Surviving parts edit

See also edit

References edit

Citations edit

  1. ^ a b Friedman through 1945, pp. 285–304.
  2. ^ a b c d e f g h i j k l m n o p q r s t u v w Bauer, K. Jack; Roberts, Stephen S. (1991). Register of Ships of the U.S. Navy, 1775-1990: Major Combatants. Westport, Connecticut: Greenwood Press. pp. 275–280. ISBN 0-313-26202-0.
  3. ^ a b c d e f g Friedman through 1945, pp. 305–311.
  4. ^ a b U.S. Submarines Through 1945 pp. 305–311
  5. ^ Peter T. Sasgen (2002). Red Scorpion: The War Patrols of the USS Rasher. Naval Institute Press. p. 17.
  6. ^ Richard H. O'Kane (1977). Clear the Bridge! The War Patrols of the USS Tang. Presidio Press. p. 40.
  7. ^ Richard H. O'Kane (1977). Clear the Bridge! The War Patrols of the USS Tang. Presidio Press. p. 111.
  8. ^ Farley, Robert (18 October 2014). "The Five Best Submarines of All Time". The National Interest.
  9. ^ Friedman through 1945, pp. 208-209
  10. ^ A Visual Guide to the U.S. Fleet Submarines Part Three: Balao and Tench Classes 1942–1950 pp. 2-3, Johnston, David (2012) Navsource Naval History website
  11. ^ Johnston, pp. 3-10
  12. ^ Alden, John D. (1979). The Fleet Submarine in the U.S. Navy: A Design and Construction History. Naval Institute Press. pp. 90, 210–212. ISBN 0-85368-203-8.
  13. ^ Stern, Robert C. (2006). "Gato-Class Submarines in action" (PDF) (Press release). Squadron Signal Publications. Retrieved 17 September 2023.
  14. ^ "Submarine Electrical Systems". www.maritime.org/.
  15. ^ Bauer and Roberts, p. 275
  16. ^ Friedman through 1945, pp. 209-210
  17. ^ Johnston, pp. 3-6
  18. ^ Friedman 1995, pp. 218-219
  19. ^ ORD696 Operational Characteristics of U.S. Naval Mines
  20. ^ United States Submarine Losses in World War II, Naval History Division, Office of the Chief of Naval Operations, Washington: 1963 (Fifth Printing)
  21. ^ Fleet Submarine index at NavSource.org
  22. ^ Lenton, p. 94
  23. ^ Friedman through 1945, p. 209
  24. ^ Lenton, pp. 100-102
  25. ^ Silverstone, p. 203
  26. ^ Silverstone, pp. 203-204
  27. ^ Gardiner and Chesneau, pp. 145-147
  28. ^ O'Kane 1989, p. 458
  29. ^ Friedman through 1945, p. 297
  30. ^ Silverstone, p. 199
  31. ^ a b
  32. ^ Friedman 1995, p. 285
  33. ^ Reserve Training Boats at SubmarineSailor.com
  34. ^ a b Friedman since 1945, pp. 228-231
  35. ^ Friedman since 1945, p. 41
  36. ^ a b Friedman since 1945, pp. 35-43
  37. ^ Friedman since 1945, p. 82
  38. ^ Friedman since 1945, p. 37
  39. ^ Friedman since 1945, p. 43
  40. ^ Friedman since 1945, p. 253
  41. ^ . Archived from the original on 10 October 2012. Retrieved 24 November 2014.
  42. ^ Friedman since 1945, pp. 177-183
  43. ^ Friedman since 1945, pp. 86-88
  44. ^ Friedman since 1945, pp. 65-68
  45. ^ Friedman since 1945, p. 89
  46. ^ Museum documents an operating US, WW II built submarine in Taiwan
  47. ^ Jimmy Chuang (17 April 2007). "World's longest-serving sub feted". Taipei Times. p. 2.
  48. ^ . Archived from the original on 7 December 2017. Retrieved 7 December 2017.
  49. ^ . Archived from the original on 3 December 2017. Retrieved 7 December 2017.
  50. ^ USS Bowfin memorial website
  51. ^ Battleship Cove website
  52. ^ USS Pampanito memorial website
  53. ^ . Archived from the original on 21 November 2017. Retrieved 7 December 2017.

Bibliography edit

External links edit

  • On Eternal Patrol, website for lost US subs
  • San Francisco Maritime Museum
  • Description of GUPPY conversions at RNSubs.co.uk
  • Navsource.org fleet submarines photo index page
  • DiGiulian, Tony Navweaps.com later 3"/50 caliber gun
  • DiGiulian, Tony Navweaps.com 4"/50 caliber gun
  • DiGiulian, Tony Navweaps.com 5"/25 caliber gun

balao, class, submarine, balao, class, design, united, states, navy, submarine, used, during, world, with, boats, completed, largest, class, submarines, united, states, navy, improvement, earlier, gato, class, boats, slight, internal, differences, most, signif. The Balao class was a design of United States Navy submarine used during World War II and with 120 2 boats completed the largest class of submarines in the United States Navy An improvement on the earlier Gato class the boats had slight internal differences The most significant improvement was the use of thicker higher yield strength steel in the pressure hull skins and frames 5 which increased their test depth to 400 feet 120 m Tang actually achieved a depth of 612 ft 187 m during a test dive 6 and exceeded that test depth when taking on water in the forward torpedo room while evading a destroyer 7 8 USS Balao in 1944Class overviewNameBalao classBuildersPortsmouth Naval Shipyard Cramp Shipbuilding Company Mare Island Naval Shipyard Electric Boat Company Manitowoc Shipbuilding Company 2 Operators United States Navy Italian Navy Turkish Navy Hellenic Navy Peruvian Navy Argentine Navy Chilean Navy Bolivarian Navy of Venezuela Republic of China Navy Royal Canadian Navy Brazilian Navy Royal Netherlands Navy Spanish NavyPreceded byGato classSucceeded byTench classBuilt1942 1946 1 In commission1943 present 1 Completed120 2 Cancelled62 2 Active1Lost14 11 in United States service 3 in foreign service 2 Retired105 2 Preserved8 2 General characteristicsTypeDiesel electric submarineDisplacement1 526 tons 1 550 t surfaced 2 2 391 2 424 tons 2 429 2463 t submerged 2 Length311 ft 6 in 311 ft 10 in 94 9 95 0 m 2 Beam27 ft 3 in 27 ft 4 in 8 3 m 2 Draft16 ft 10 in 5 13 m maximum 2 Propulsion4 diesel engines driving electrical generators Fairbanks Morse or General Motors 2 2 126 cell Sargo batteries 3 4 high speed electric motors with reduction gears or 2 low speed electric motors Elliott Company or General Electric 2 two shafts 2 5 400 shp 4 000 kW surfaced 2 2 740 shp 2 040 kW submerged 2 Speed20 25 knots 38 km h surfaced 3 8 75 knots 16 km h submerged 3 Range11 000 nautical miles 20 000 km surfaced 10 knots 19 km h 3 Endurance48 hours 2 knots 3 7 km h submerged 3 75 days on patrolTest depth400 ft 120 m 3 Complement10 officers 70 71 enlisted men 3 Armament10 21 inch 533 mm torpedo tubes 6 forward 4 aft 24 torpedoes 4 1 5 inch 127 mm 25 caliber deck gun 4 Bofors 40 mm and Oerlikon 20 mm cannon Contents 1 Design 1 1 Engines 1 2 Deck guns 1 2 1 Mine armament 2 Ships in class 2 1 Cancellations 3 Service history 3 1 World War II 3 2 Balao class losses 3 3 Notable submarines 4 Postwar service history 4 1 Naval Reserve trainer 4 2 Foreign service 5 GUPPY and other conversions 5 1 GUPPY I 5 2 GUPPY II 5 3 GUPPY IA 5 4 Fleet Snorkel 5 5 GUPPY IIA 5 6 GUPPY IB 5 7 GUPPY III 5 8 Radar picket 5 9 Guided missile submarine 5 10 Transport submarine 5 11 Sonar test submarine 5 12 Cargo submarine 6 Operational submarines 7 Museums 7 1 Surviving ships 7 2 Surviving parts 8 See also 9 References 9 1 Citations 9 2 Bibliography 10 External linksDesign editThe Balaos were similar to the Gatos except they were modified to increase test depth from 300 ft 90 m to 400 ft 120 m In late 1941 two of the Navy s leading submarine designers Captain Andrew McKee and Commander Armand Morgan met to explore increasing diving depth in a redesigned Gato A switch to a new High Tensile Steel HTS alloy combined with an increase in hull thickness from 9 16 inch 14 3 mm to 7 8 inch 22 2 mm would result in a test depth of 450 ft 140 m and a collapse depth of 900 ft 270 m However the limited capacity of the trim pump at deep depths and lack of time to design a new pump caused Rear Admiral E L Cochrane Chief of the Bureau of Ships to limit test depth to 400 ft 120 m Fortunately in 1944 a redesigned Gould centrifugal pump replaced the noisy early war pump and effective diving depth was increased 9 The Balaos incorporated the fairwater conning tower and periscope shears reduction efforts that were being retrofitted to the Gatos and the preceding classes in the original design refining the reductions and reducing the sail to the smallest practical size By the time the boats began to be launched lessons learned from patrol reports had been worked into the design and the bridge and sail proved to be efficiently laid out well equipped and well liked by the crews 10 For the masts and periscope shears the original arrangement for both the Government and Electric Boat designs had forward to aft the two tapered cone shaped periscope support shears followed by a thin mast for the SJ surface search radar and then by a thin mast for the SD air search radar There were minor differences in how the periscopes were braced against vibration but both designs were nearly identical About halfway through their production run Electric Boat altered their design moving the SJ radar mast forward of the periscopes then altered it again a few boats later by enlarging the SD radar mast Late in the war many Balaos built with the original design had the SD air search radar moved slightly aft onto a thickened and taller mast These mast arrangements along with the tremendous variation in the gun layout as the war progressed account for the numerous exterior detail differences among the boats to the point that at any given time no two Balaos looked exactly alike 11 Engines edit The propulsion of the Balao class submarines was generally similar to that of the preceding Gato class Like their predecessors they were true diesel electric submarines their four diesel engines powered electrical generators and electric motors drove the shafts There was no direct connection between the main engines and the shafts nbsp General Motors Cleveland Model 16 248 diesel engine nbsp Fairbanks Morse Model 38D8 diesel engineBalao class submarines received main engines from one of two manufacturers General Motors Cleveland Model 16 278A V type diesels or Fairbanks Morse 38D 8 1 8 nine cylinder opposed piston engine The General Motors Cleveland Model 16 248 V type as original installations while boats from Sand Lance onward received 10 cylinder engines Earlier General Motors boats received Model 16 248 engines but beginning with Perch Model 16 278A engines were used In each case the newer engines had greater displacement than the old but were rated at the same power they operated at lower mean effective pressure for greater reliability 12 Both the Fairbanks Morse and General Motors engines were two stroke cycle types 13 Two submarines Unicorn and Vendace were to receive Hooven Owens Rentschler H O R diesels which proved unreliable on previous classes but both boats were cancelled Two manufacturers supplied electric motors for the Balao 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 Allis Chalmers motors were to be used in SS 530 through SS 536 but those seven boats were cancelled before even receiving names 14 Earlier submarines carried four high speed electric motors two per shaft which had to be fitted with reduction gears to slow their outputs down to an appropriate speed for the shafts This reduction gearing was very noisy and made the submarine easier to detect with hydrophones Eighteen late Balao class submarines received low speed double armature motors which drove the shafts directly and were much quieter but this improvement was not universally fitted until the succeeding Tench class 15 The new direct drive electric motors were designed by the Bureau of Ships electrical division under Captain Hyman G Rickover and were first equipped on Sea Owl 16 On all US World War II built boats as the diesel engines were not directly connected to the shafts the electric motors drove the shafts all the time Deck guns edit nbsp 5 25 caliber gun on USS Bowfin nbsp 20 mm Oerlikon twin mount displayed near HMCS HaidaMany targets in the Pacific War were sampans or otherwise not worth a torpedo so the deck gun was an important weapon Early Balaos began their service with a 4 inch 102 mm 50 caliber Mk 9 gun Due to war experience most were re armed with a 5 inch 127 mm 25 caliber Mk 17 gun similar to mounts on battleships and cruisers but built as a wet mount with corrosion resistant materials and with power operated loading and aiming features removed This conversion started in late 1943 and some boats had two of these weapons beginning in late 1944 Spadefish commissioned in March 1944 was the first newly built submarine with the purpose built 5 inch 25 submarine mount Additional anti aircraft guns included single 40 mm Bofors and twin 20 mm Oerlikon mounts usually one of each 17 18 Mine armament edit Like the previous Tambor Gar and Gato classes the Balao 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 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 was also carried which only allowed one mine replacing one torpedo 19 Ships in class editMain article List of Balao class submarines This was the most numerous US submarine class 120 of these boats were commissioned from February 1943 through September 1948 with 12 commissioned postwar Nine of the 52 US submarines lost in World War II were of this class along with five lost postwar including one in Turkish service in 1953 one in Argentine service in the Falklands War of 1982 and one in Peruvian service in 1988 2 20 Also Lancetfish flooded and sank while fitting out at the Boston Naval Shipyard on 15 March 1945 She was raised but not repaired and was listed with the reserve fleet postwar until struck in 1958 Some of the class served actively in the US Navy through the middle 1970s and one Hai Pao ex Tusk is still active in Taiwan s Republic of China Navy SS 361 through SS 364 were initially ordered as Balao class and were assigned hull numbers that fall in the middle of the range of numbers for the Balao class SS 285 to SS 416 amp 425 426 21 Thus in some references they are listed with that class 22 However they were completed by Manitowoc as Gatos due to an unavoidable delay in Electric Boat s development of Balao class drawings Manitowoc was a follow yard to Electric Boat and was dependent on them for designs and drawings 23 2 Also USS Trumpetfish SS 425 and USS Tusk SS 426 are listed with the Tench class in some references as their hull numbers fall in the range of that class 24 25 Cancellations edit A total of 125 U S submarines were cancelled during World War II all but three between 29 July 1944 and 12 August 1945 The exceptions were three Tench class boats cancelled 7 January 1946 References vary considerably as to how many of these were Balaos and how many were Tenches Some references simply assume all submarines numbered after SS 416 were Tench class however Trumpetfish SS 425 and Tusk SS 426 were completed as Balaos 26 27 This yields 10 cancelled Balao class SS 353 360 and 379 380 The Register of Ships of the U S Navy differs considering every submarine not specifically ordered as a Tench to be a Balao and further projecting SS 551 562 as a future class 2 This yields 62 cancelled Balao class 51 cancelled Tench class and 12 cancelled future class Two of the cancelled Balao class submarines Turbot SS 427 and Ulua SS 428 were launched incomplete and served for years as experimental hulks at Annapolis and Norfolk Virginia The cancelled hull numbers including those launched incomplete were SS 353 360 Balao 379 380 Balao 427 434 Balao 436 437 Tench 438 474 Balao 491 521 Tench 526 529 Tench 530 536 Balao 537 550 Tench and 551 562 future 2 Service history editWorld War II edit nbsp Periscope photo from USS Wahoo of a Japanese merchant ship sinking The Balaos began to enter service in mid 1943 as the many problems with the Mark 14 torpedo were being solved They were instrumental in the Submarine Force s near destruction of the Japanese merchant fleet and significant attrition of the Imperial Japanese Navy One of the class Archerfish brought down what remains the largest warship sunk by a submarine the Japanese aircraft carrier Shinano 59 000 tons Tang the highest scoring of the class sank 33 ships totaling 116 454 tons as officially revised upward in 1980 28 Nine Balaos were lost in World War II while two US boats were lost in postwar accidents In foreign service one in Turkish service was lost in a collision in 1953 one in Peruvian service was lost in a collision in 1988 and Catfish was sold to the Argentinian Navy She was renamed the ARA Santa Fe S 21 and was lost in the 1982 Falklands War after being damaged when she sank while moored pierside Santa Fe was refloated and disposed of a few years after the war by being taken out to deep water and scuttled Additionally Lancetfish commissioned but incomplete and still under construction flooded and sank pierside at the Boston Navy Yard on 15 March 1945 after a yard worker mistakenly opened the inner door of an aft torpedo tube that already had the outer door open No personnel were lost in the accident and she was raised decommissioned and never completed or repaired 2 29 30 Her 42 days in commission is the record for the shortest commissioned service of any USN submarine Postwar she was laid up in the Reserve Fleet until stricken in 1958 and scrapped in 1959 Balao class losses edit Name and hull number Date NotesUSS Cisco SS 290 28 September 1943 Lost to air attack and gunboat Karatsu ex USS Luzon USS Capelin SS 289 December 1943 Cause of loss unknown possibly naval mine or attack by the Japanese minelayer WakatakaUSS Escolar SS 294 17 October 13 November 1944 Probably lost to enemy mineUSS Shark SS 314 24 October 1944 Attacked by the Japanese destroyer HarukazeUSS Tang SS 306 25 October 1944 Sunk by a circular run of own torpedoUSS Barbel SS 316 4 February 1945 Air attackUSS Kete SS 369 March 1945 Cause of loss unknown possibly to mine or enemy actionUSS Lagarto SS 371 3 May 1945 Attacked by Japanese minelayer HatsutakaUSS Bullhead SS 332 6 August 1945 Sunk by Japanese air attack by a Mitsubishi Ki 51USS Cochino SS 345 26 August 1949 Accidental fireTCG Dumlupinar D 6 formerly USS Blower SS 325 4 April 1953 In Turkish service lost in collision with MV NabolandUSS Stickleback SS 415 28 May 1958 Collision with USS Silverstein DE 534 ARA Santa Fe S 21 formerly USS Catfish SS 339 25 April 1982 In Argentine service disabled by helicopter attack sank pierside and was captured by ground forces during Operation Paraquet the British recapture of South Georgia during the Falklands War After the war she was scuttled in deep water BAP Pacocha SS 48 formerly USS Atule SS 403 26 August 1988 In Peruvian service lost in collision with Japanese fishing trawler Kiowa MaruNotable submarines edit Tang was second on the list of number of ships sunk with 33 and first on the list of tonnage with 116 454 Her third war patrol was the most successful of any U S submarine with 10 ships for 39 100 tons Sunk in the Taiwan Strait by a circular run of her own torpedo her skipper Richard O Kane and eight others escaped some escaped the submerged wreck with the only known successful use of the Momsen Lung Tang s survivors were imprisoned by the Japanese for the rest of the war After his release following the Japanese surrender Richard O Kane was awarded the Medal of Honor for his actions commanding Tang during the convoy battles of 24 and 25 October 1944 Archerfish sank the aircraft carrier Shinano Shinano is the largest ship sunk by a submarine Commander Enright was awarded the Navy Cross Postwar service history editPostwar 55 Balaos were modernized under the Fleet Snorkel and Greater Underwater Propulsion Power GUPPY programs with some continuing in US service into the early 1970s The last Balao class submarine in United States service was USS Clamagore SS 343 which was decommissioned in June 1975 31 Seven were converted to roles as diverse as guided missile submarines SSG and amphibious transport submarines SSP 46 were transferred to foreign navies for years of additional service some into the 1990s and Tusk remains active in Taiwan s Republic of China Navy as Hai Pao Naval Reserve trainer edit Interested in maintaining a ready pool of trained reservists the Navy assigned at least 58 submarines from 1946 to 1971 to various coastal and inland ports even in Great Lakes ports like Cleveland Chicago and Detroit where they served as training platforms during the Reservists weekend drills At least 20 Balao class boats served in this capacity In this role the boats 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 service in reserve thus some were decommissioned and recommissioned on the same day to reflect the change in status 32 33 34 Foreign service edit 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 46 Balao class submarines were transferred to foreign navies some shortly after World War II others after serving nearly 30 years in the US Navy These included 17 to Turkey 2 to Greece 3 to Italy 2 to the Netherlands 5 to Spain 2 to Venezuela 4 to Argentina 5 to Brazil 2 to Chile 2 to Peru 1 to Canada and 1 to Taiwan 34 One of the Venezuelan boats ARV Carite S 11 formerly USS Tilefish SS 307 featured in the 1971 film Murphy s War with some cosmetic modification GUPPY and other conversions editAt the end of World War II the US submarine force found itself in an awkward position The 111 remaining Balao class submarines designed to fight an enemy that no longer existed were obsolete despite the fact they were only one to three years old The German Type XXI U boat with a large battery capacity streamlining to maximize underwater speed and a snorkel was the submarine of the immediate future The Greater Underwater Propulsion Power Program GUPPY conversion program was developed to give some Balao and Tench class submarines similar capabilities to the Type XXI When the cost of upgrading numerous submarines to GUPPY standard became apparent the austere Fleet Snorkel conversion was developed to add snorkels and partial streamlining to some boats A total of 36 Balao class submarines were converted to one of the GUPPY configurations with 19 additional boats receiving Fleet Snorkel modifications Two of the GUPPY boats and six of the Fleet Snorkel boats were converted immediately prior to transfer to a foreign navy Most of the 47 remaining converted submarines were active into the early 1970s when many were transferred to foreign navies for further service and others were decommissioned and disposed of 31 Although there was some variation in the GUPPY conversion programs generally the original two Sargo batteries were replaced by four more compact Guppy GUPPY I and II only or Sargo II batteries via significant re utilization of below deck space usually including removal of auxiliary diesels All of these battery designs were of the lead acid type This increased the total number of battery cells from 252 to 504 the downside was the compact batteries had to be replaced every 18 months instead of every 5 years The Sargo II battery was developed as a lower cost alternative to the expensive Guppy battery 35 All GUPPYs received a snorkel with a streamlined sail and bow Also the electric motors were upgraded to the direct drive double armature type along with modernized electrical and air conditioning systems All except the austere GUPPY IB conversions for foreign transfer received sonar fire control and Electronic Support Measures ESM upgrades 36 The Fleet Snorkel program was much more austere than the GUPPY modernizations but is included here as it occurred during the GUPPY era The GUPPY and Fleet Snorkel programs are listed in chronological order GUPPY I GUPPY II GUPPY IA Fleet Snorkel GUPPY IIA GUPPY IB and GUPPY III GUPPY I edit Two Tench class boats were converted as prototypes for the GUPPY program in 1947 Their configuration lacked a snorkel and was not repeated so no Balaos received this conversion GUPPY II edit nbsp USS Catfish in GUPPY II configurationThis was the first production GUPPY conversion with most conversions occurring in 1947 49 Thirteen Balao class boats Catfish Clamagore Cobbler Cochino Corporal Cubera Diodon Dogfish Greenfish Halfbeak Tiru Trumpetfish and Tusk received GUPPY II upgrades This was the only production conversion with Guppy batteries GUPPY IA edit nbsp USS Caiman SS 323 after GUPPY IA conversionThis was developed as a more cost effective alternative to GUPPY II Nine Balao class boats Atule Becuna Blackfin Blenny Caiman Chivo Chopper Sea Poacher and Sea Robin were converted in 1951 52 The less expensive Sargo II battery was introduced along with other cost saving measures Fleet Snorkel edit nbsp USS Sabalo after a Fleet Snorkel conversionThe Fleet Snorkel program was developed as an austere cost effective alternative to full GUPPY conversions with significantly less improvement in submerged performance Twenty three Balao class boats Bergall Besugo Brill Bugara Carbonero Carp Charr Chub Cusk Guitarro Kraken Lizardfish Mapiro Mero Piper Sabalo Sablefish Scabbardfish Sea Cat Sea Owl Segundo Sennet and Sterlet received this upgrade six immediately prior to foreign transfer Most Fleet Snorkel conversions occurred 1951 52 Unlike the GUPPY conversions the original pair of Sargo batteries were not upgraded Each boat received a streamlined sail with a snorkel along with upgraded sonar air conditioning and ESM The original bow was left in place except on three boats Piper Sea Owl and Sterlet that received additional upper bow sonar equipment 37 A few boats initially retained the 5 25 deck gun but this was removed in the early 1950s GUPPY IIA edit nbsp USS Razorback SS 394 after GUPPY IIA conversionThis was generally similar to GUPPY IA except one of the forward diesel engines was removed to relieve machinery overcrowding Thirteen Balao class boats Bang Diodon Entemedor Hardhead Jallao Menhaden Picuda Pomfret Razorback Ronquil Sea Fox Stickleback and Threadfin received GUPPY IIA upgrades in 1952 54 One of these Diodon had previously been upgraded to GUPPY II GUPPY IB edit This was developed as an austere upgrade for two Gato class and two Balao class boats Hawkbill and Icefish prior to transfer to foreign navies in 1953 55 They lacked the sonar and electronics upgrades of other GUPPY conversions GUPPY III edit nbsp USS Clamagore SS 343 Nine submarines six of them Balaos Clamagore Cobbler Corporal Greenfish Tiru and Trumpetfish were upgraded from GUPPY II to GUPPY III in 1959 63 as part of the Fleet Rehabilitation and Modernization II FRAM II program All except Tiru the pilot conversion were lengthened by 15 feet in the forward part of the control room to provide a new sonar space berthing electronics space and storerooms Tiru was lengthened only 12 5 feet and both forward diesel engines were removed 38 The other GUPPY IIIs retained all four engines A taller Northern sail was included to allow improved surfaced operations in rough seas this was also backfitted to some other GUPPYs The BQG 4 Passive Underwater Fire Control Feasibility Study PUFFS sonar system with its three tall domes topside was fitted Additionally fire control upgrades allowed the Mark 45 nuclear torpedo to be used 39 Radar picket edit The advent of the kamikaze demonstrated the need for a long range radar umbrella around the fleet Radar picket destroyers and destroyer escorts 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 Four submarines including the Balao class boat Threadfin prototyped the concept at the end of World War II but were not used in this role 40 Ten fleet submarines were converted for this role 1946 53 and redesignated SSR as radar picket submarines Burrfish was the only Balao class SSR Experiments on the first two SSR submarines under the appropriately named Project Migraine I showed that placement of the radars on the deck was inadequate and that more room was needed for electronics Thus Burrfish was given the Migraine II project SCB 12 conversion which placed a Combat Information Center CIC in the space formerly occupied as the aft battery room The after torpedo room was stripped and converted into berthing and the boat lost two of her forward torpedo tubes to make room for additional berthing and electronics The radars were raised up off the deck and put on masts giving them a greater range and hopefully greater reliability 36 The SSRs proved only moderately successful as the radars themselves proved troublesome and somewhat unreliable and the boats surface speed was insufficient to protect a fast moving carrier group The radars were removed and the boats reverted to general purpose submarines after 1959 Burrfish was decommissioned in 1956 and with her radar equipment removed transferred to Canada as HMCS Grilse SS 71 in 1961 41 Guided missile submarine edit nbsp USS Cusk fires a Loon missileThe Regulus nuclear cruise missile program of the 1950s provided the US Navy with its first strategic strike capability It was preceded by experiments with the JB 2 Loon missile a close derivative of the German V 1 flying bomb beginning in the last year of World War II Submarine testing of Loon was performed 1947 53 with Cusk and Carbonero converted in to guided missile submarines as test platforms in 1947 and 1948 respectively Initially the missile was carried on the launch rail unprotected thus the submarine was unable to submerge until after launch Cusk was eventually fitted with a watertight hangar for one missile and redesignated as an SSG Following a brief stint as a cargo submarine Barbero was converted in 1955 to carry two surface launched Regulus missiles and was redesignated as an SSG joining the Gato class Tunny in this role She made strategic deterrent patrols with Regulus until 1964 when the program was discontinued in favor of Polaris 42 A number of fleet boats were equipped with Regulus guidance equipment 1953 64 including Cusk and Carbonero following the Loon tests Transport submarine edit nbsp A Sikorsky HRS helicopter touches down on Sealion as a transport submarineSealion and Perch were converted to amphibious transport submarines in 1948 and redesignated as SSPs Initially they were equipped with a watertight hangar capable of housing a Landing Vehicle Tracked LVT and retained one 5 inch 127 mm 25 caliber deck gun for shore bombardment Both torpedo rooms and one engine room were gutted to provide space for embarked Special Operations Forces SOF and their equipment Snorkels were fitted Due to the extra personnel to avoid excessive snorkeling they were equipped with a CO2 scrubber and extra oxygen storage Initially a squadron of 12 SSPs was considered capable of landing a reinforced Marine battalion but only two Balao class SSPs out of four overall were actually converted Perch landed British commandos on one raid in the Korean War and operated in the Vietnam War from 1965 until assignment to Naval Reserve training in 1967 and decommissioning in 1971 followed by scrapping in 1973 Perch was replaced in the Pacific Fleet transport submarine role by Tunny in 1967 and Grayback in 1968 Sealion operated in the Atlantic deploying for the Cuban Missile Crisis and numerous SOF related exercises She was decommissioned in 1970 and expended as a target in 1978 The LVT hangar and 5 inch gun were removed from both boats by the late 1950s They went through several changes of designation in their careers ASSP in 1950 APSS in 1956 and LPSS in 1968 43 2 Sonar test submarine edit Baya was redesignated as an auxiliary submarine AGSS in 1949 and converted to a sonar test submarine in 1958 59 to test a system known as LORAD This included a 12 foot 3 7 m extension aft of the forward torpedo room with 40 foot 12 m swing out arrays near the bow Later three large domes were installed topside for a wide aperture array 44 Cargo submarine edit Barbero was converted to a cargo submarine and redesignated as an SSA in 1948 The forward engine room after torpedo room and all reload torpedo racks were gutted to provide cargo space From October 1948 until March 1950 she took part in an experimental program to evaluate her capabilities as a cargo carrier Experimentation ended in early 1950 and she was decommissioned into the reserve on 30 June 1950 In 1955 she was converted to a Regulus missile submarine and redesignated as an SSG 45 Operational submarines editAs of 2007 Tusk a Balao class submarine was one of the last two operational submarines in the world built during World War II The boat was transferred to Taiwan s Republic of China Navy in the early 1970s The Tench class ex Cutlass is the other one They are named Hai Pao and Hai Shih respectively in Taiwanese service 46 47 Museums editSix Balao 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 boat gets a yearly inspection and a report card Some boats like Batfish and Pampanito encourage youth functions and allow a group of volunteers to sleep overnight in the crew s quarters Surviving ships edit The following is a complete list of Balao class museum boats USS Batfish SS 310 at War Memorial Park in Muskogee Oklahoma 48 USS Becuna SS 319 at Independence Seaport Museum in Philadelphia 49 USS Bowfin SS 287 at USS Bowfin Submarine Museum amp Park in Honolulu 50 USS Lionfish SS 298 at Battleship Cove in Fall River Massachusetts 51 USS Pampanito SS 383 at San Francisco Maritime National Historical Park in San Francisco 52 USS Razorback SS 394 at Arkansas Inland Maritime Museum in North Little Rock Arkansas 53 USS Clamagore SS 343 served as a museum boat at Patriots Point in Charleston South Carolina until being closed in 2021 and scrapped two years later Additionally the USS Ling SS 297 is aground in the Hackensack River at the site of the former New Jersey Naval Museum As of 2022 efforts to find a new home for this vessel have been unsuccessful Surviving parts edit USS Halfbeak SS 352 at New Jersey Naval Museum in Hackensack New Jersey Sail USS Baya SS 318 at Vallejo Naval and Historical Museum in Vallejo California Periscope USS Pintado SS 387 at National Museum of the Pacific War in Fredericksburg Texas Conning Tower USS Parche SS 384 at USS Bowfin Submarine Museum amp Park in Honolulu Conning Tower USS Balao SS 285 at Washington Navy Yard in Washington D C Conning Tower See also editList of most successful American submarines in World War II List of lost United States submarines Allied submarines in the Pacific War List of ship classes of the Second World War List of Balao class SubmarinesReferences editCitations edit a b Friedman through 1945 pp 285 304 a b c d e f g h i j k l m n o p q r s t u v w Bauer K Jack Roberts Stephen S 1991 Register of Ships of the U S Navy 1775 1990 Major Combatants Westport Connecticut Greenwood Press pp 275 280 ISBN 0 313 26202 0 a b c d e f g Friedman through 1945 pp 305 311 a b U S Submarines Through 1945 pp 305 311 Peter T Sasgen 2002 Red Scorpion The War Patrols of the USS Rasher Naval Institute Press p 17 Richard H O Kane 1977 Clear the Bridge The War Patrols of the USS Tang Presidio Press p 40 Richard H O Kane 1977 Clear the Bridge The War Patrols of the USS Tang Presidio Press p 111 Farley Robert 18 October 2014 The Five Best Submarines of All Time The National Interest Friedman through 1945 pp 208 209 A Visual Guide to the U S Fleet Submarines Part Three Balao and Tench Classes 1942 1950 pp 2 3 Johnston David 2012 Navsource Naval History website Johnston pp 3 10 Alden John D 1979 The Fleet Submarine in the U S Navy A Design and Construction History Naval Institute Press pp 90 210 212 ISBN 0 85368 203 8 Stern Robert C 2006 Gato Class Submarines in action PDF Press release Squadron Signal Publications Retrieved 17 September 2023 Submarine Electrical Systems www maritime org Bauer and Roberts p 275 Friedman through 1945 pp 209 210 Johnston pp 3 6 Friedman 1995 pp 218 219 ORD696 Operational Characteristics of U S Naval Mines United States Submarine Losses in World War II Naval History Division Office of the Chief of Naval Operations Washington 1963 Fifth Printing Fleet Submarine index at NavSource org Lenton p 94 Friedman through 1945 p 209 Lenton pp 100 102 Silverstone p 203 Silverstone pp 203 204 Gardiner and Chesneau pp 145 147 O Kane 1989 p 458 Friedman through 1945 p 297 Silverstone p 199 a b GUPPY and other diesel boat conversions page Friedman 1995 p 285 Reserve Training Boats at SubmarineSailor com a b Friedman since 1945 pp 228 231 Friedman since 1945 p 41 a b Friedman since 1945 pp 35 43 Friedman since 1945 p 82 Friedman since 1945 p 37 Friedman since 1945 p 43 Friedman since 1945 p 253 Whitman Edward C Cold War Curiosities U S Radar Picket Submarines Undersea Warfare Winter Spring 2002 Issue 14 Archived from the original on 10 October 2012 Retrieved 24 November 2014 Friedman since 1945 pp 177 183 Friedman since 1945 pp 86 88 Friedman since 1945 pp 65 68 Friedman since 1945 p 89 Museum documents an operating US WW II built submarine in Taiwan Jimmy Chuang 17 April 2007 World s longest serving sub feted Taipei Times p 2 Muskogee War Memorial Park website Archived from the original on 7 December 2017 Retrieved 7 December 2017 USS Becuna memorial website Archived from the original on 3 December 2017 Retrieved 7 December 2017 USS Bowfin memorial website Battleship Cove website USS Pampanito memorial website Arkansas Inland Maritime Museum website Archived from the original on 21 November 2017 Retrieved 7 December 2017 Bibliography edit Friedman Norman 1995 U S Submarines Through 1945 An Illustrated Design History Annapolis Maryland United States Naval Institute ISBN 1 55750 263 3 Friedman Norman 1994 U S Submarines Since 1945 An Illustrated Design History Annapolis Maryland United States Naval Institute ISBN 1 55750 260 9 Lenton H T 1973 American Submarines New York Doubleday ISBN 0 385 04761 4 Silverstone Paul H 1989 1965 U S Warships of World War II Annapolis MD Naval Institute Press ISBN 0 87021 773 9 Gardiner Robert Chesneau Roger 1980 Conway s All the World s Fighting Ships 1922 1946 London Conway Maritime Press ISBN 0 83170 303 2 O Kane Richard H 1989 Clear the Bridge The War Patrols of the U S S Tang Novato CA Presidio Press ISBN 978 0 89141 346 2 Different pagination than 1977 edition External links edit nbsp Wikimedia Commons has media related to Balao class submarines On Eternal Patrol website for lost US subs Fleet Type Submarine Training Manual San Francisco Maritime Museum Description of GUPPY conversions at RNSubs co uk GUPPY and other diesel boat conversions page partial archive Navsource org fleet submarines photo index page https web archive org web 20140322093118 http www fleetsubmarine com sublist html DiGiulian Tony Navweaps com later 3 50 caliber gun DiGiulian Tony Navweaps com 4 50 caliber gun DiGiulian Tony Navweaps com 5 25 caliber gun Retrieved from https en wikipedia org w index php title Balao class submarine amp oldid 1188508441, wikipedia, wiki, book, books, library,

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