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FIGHTING SHIPS OF THE WORLD
UNITED STATES OF AMERICA
SUBMARINES
GATO submarines (1941 - 1944), BALAO submarines (1943 - 1948)


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Gato 1944

Ships


No Name Yard No Builder Laid down Launched Comm Fate Modification
SS212 Gato 42 Electric Boat, Groton 10.1940 21.8.1941 12/1941 Naval Reserve TS 3.1946, stricken 3.1960 Gato
SS213 Greenling 43 Electric Boat, Groton 11.1940 20.9.1941 1/1942 Naval Reserve TS 10.1946, stricken 3.1960 Gato
SS214, 1.1951- SSK214, 5.1958- AGSS214 Grouper 44 Electric Boat, Groton 12.940 27.10.1941 2/1942 auxiliary submarine 5.1958, stricken 12.1968 Gato
SS215 Growler 45 Electric Boat, Groton 2.1941 22.11.1941 3/1942 sunk 8.11.1944 Gato
SS216 Grunion 46 Electric Boat, Groton 3.1941 22.12.1941 4/1942 sunk 30.7.1942 Gato
SS217 Guardfish 47 Electric Boat, Groton 4.1941 20.1.1942 5/1942 Naval Reserve TS 6.1948, stricken 10.1960 Gato
SS218 Albacore 48 Electric Boat, Groton 4.1941 17.2.1942 6/1942 sunk 7.11.1944 Gato
SS219 Amberjack 49 Electric Boat, Groton 5.1941 6.3.1942 6/1942 sunk 16.2.1943 Gato
SS220 Barb 50 Electric Boat, Groton 6.1941 2.4.1942 7/1942 to Italy 12.1954 (Enrico Tazzoli) Gato
SS221 Blackfish 51 Electric Boat, Groton 7.1941 18.4.1942 7/1942 stricken 9.1958 Gato
SS222 Bluefish 64 Electric Boat, Groton 6.1942 21.2.1943 5/1943 stricken 6.1959 Gato
SS223 Bonefish 65 Electric Boat, Groton 6.1942 7.3.1943 5/1943 sunk 18.6.1945 Gato
SS224, 12.1962- AGSS224 Cod 67 Electric Boat, Groton 7.1942 21.3.1943 6/1943 auxiliary submarine 12.1962, miscellaneous unclassified submarine IXSS224 6.1971 Gato
SS225 Cero 69 Electric Boat, Groton 8.1942 4.4.1943 7/1943 stricken 6.1967 Gato
SS226 Corvina 70 Electric Boat, Groton 9.1942 9.5.1943 8/1943 sunk 16.11.1943 Gato
SS227 Darter 72 Electric Boat, Groton 10.1942 6.6.1943 9/1943 wrecked 24.10.1944 Gato
SS228, 3.1947- AGSS228 Drum   Portsmouth N Yd 9.1940 12.5.1941 11/1941 Naval Reserve TS 3.1947, auxiliary submarine 12.1962, stricken 6.1968 Gato
SS229, 11.1950- AGSS229 Flying Fish   Portsmouth N Yd 12.1940 9.7.1941 12/1941 auxiliary submarine 11.1950, stricken 8.1958 Gato
SS230 Finback   Portsmouth N Yd 2.1941 25.8.1941 1/1942 stricken 9.1958 Gato
SS231 Haddock   Portsmouth N Yd 3.1941 20.10.1941 3/1942 Naval Reserve TS 8.1948, stricken 6.1960 Gato
SS232 Halibut   Portsmouth N Yd 5.1941 3.12.1941 4/1942 damaged 14.11.1944, never repaired Gato
SS233 Herring   Portsmouth N Yd 7.1941 15.1.1942 5/1942 sunk 1.6.1944 Gato
SS234 Kingfish   Portsmouth N Yd 8.1941 2.3.1942 5/1942 stricken 3.1960 Gato
SS235 Shad   Portsmouth N Yd 10.1941 15.4.1942 6/1942 Naval Reserve TS 1947, stricken 4.1960 Gato
SS236, 11.1962- AGSS236 Silversides   Mare Island N Yd, Vallejo 11.1940 26.8.1941 12/1941 Naval Reserve TS 10.1947, auxiliary submarine 11.1962, stricken 6.1969 Gato
SS237 Trigger   Mare Island N Yd, Vallejo 2.1941 22.10.1941 1/1942 sunk 28.3.1945 Gato
SS238 Wahoo   Mare Island N Yd, Vallejo 6.1941 14.2.1942 5/1942 sunk 11.10.1943 Gato
SS239 Whale   Mare Island N Yd, Vallejo 6.1941 14.3.1942 6/1942 stricken 3.1960 Gato
SS240, 2.1953- SSK240, 8.1959- SS240, 7.1963- AGSS240 Angler 74 Electric Boat, Groton 11.1942 4.7.1943 10/1943 auxiliary submarine 7.1963, miscellaneous unclassified submarine IXSS240 6.1971 Gato
SS241, 2.1953- SSK241, 8.1959- SS241, 9.1962- AGSS241 Bashaw 75 Electric Boat, Groton 12.1942 25.7.1943 10/1943 auxiliary submarine 9.1962, stricken 9.1969 Gato
SS242, 2.1953- SSK242, 8.1959- SS242, 4.1966- AGSS242 Bluegill 77 Electric Boat, Groton 12.1942 8.8.1943 11/1943 auxiliary submarine 4.1966, stricken 6.1969 Gato
SS243, 2.1953- SSK243, 8.1959- SS243, 4.1965- AGSS243 Bream 79 Electric Boat, Groton 2.1943 17.10.1943 1/1944 auxiliary submarine 4.1965, stricken 6.1969 Gato
SS244, 2.1953- SSK244, 8.1959- SS244, 7.1963- AGSS244 Cavalla 80 Electric Boat, Groton 3.1943 14.11.1943 2/1944 auxiliary submarine 7.1963, stricken 12.1969 Gato
SS245, 12.1962- AGSS245 Cobia 81 Electric Boat, Groton 3.1943 28.11.1943 3/1944 auxiliary submarine 12.1962, stricken 7.1970 Gato
SS246, 2.1953- SSK246, 8.1959- SS246, 5.1967- AGSS246 Croaker 82 Electric Boat, Groton 4.1943 19.12.1943 4/1944 auxiliary submarine 5.1967, miscellaneous unclassified submarine IXSS246 6.1971 Gato
SS247 Dace 66 Electric Boat, Groton 7.1942 25.4.1943 7/1943 to Italy 1.1955 (Leonardo da Vinci) Gato
SS248 Dorado 68 Electric Boat, Groton 8.1942 23.5.1943 8/1943 sunk 12.10.1943 Gato
SS249 Flasher 71 Electric Boat, Groton 9.1942 20.6.1943 9/1943 stricken 6.1959 Gato
SS250 Flier 73 Electric Boat, Groton 10.1942 11.7.1943 10/1943 sunk 13.8.1944 Gato
SS251 Flounder 76 Electric Boat, Groton 12.1942 22.8.1943 11/1943 stricken 6.1959 Gato
SS252 Gabilan 78 Electric Boat, Groton 1.1943 19.9.1943 12/1943 stricken 6.1959 Gato
SS253 Gunnel 52 Electric Boat, Groton 7.1941 17.5.1942 8/1942 stricken 9.1958 Gato
SS254 Gurnard 53 Electric Boat, Groton 9.1941 1.6.1942 9/1942 Naval Reserve TS 7.1949, stricken 5.1961 Gato
SS255 Haddo 54 Electric Boat, Groton 10.1941 21.6.1942 10/1942 stricken 8.1958 Gato
SS256, 12.1962- AGSS256 Hake 55 Electric Boat, Groton 11.1941 17.7.1942 10/1942 Naval Reserve TS 7.1946, auxiliary submarine 12.1962, stricken 4.1968 Gato
SS257 Harder 56 Electric Boat, Groton 12.1941 19.8.1942 12/1942 sunk 24.8.1944 Gato
SS258 Hoe 57 Electric Boat, Groton 1.1942 17.9.1942 12.1942 Naval Reserve TS 9.1956, stricken 5.1960 Gato
SS259 Jack 58 Electric Boat, Groton 2.1942 16.10.1942 1/1943 to Greece 4.1958 (Αμφιτρίτη [Amfitriti]) Gato
SS260 Lapon 59 Electric Boat, Groton 2.1942 27.10.1942 1/1943 to Greece 8.1957 (Ποσειδών [Poseidon]) Gato
SS261 Mingo 60 Electric Boat, Groton 3.1942 30.11.1942 2/1943 to Japan 8.1955 (くろしお [Kuroshio]) Gato
SS262 Muskallunge 61 Electric Boat, Groton 4.1942 13.12.1942 3/1943 to Brazil 1.1957 (Humaitá) Gato
SS263 Paddle 62 Electric Boat, Groton 5.1942 30.12.1942 3/1943 to Brazil 1.1957 (Riachuelo) Gato
SS264 Pargo 63 Electric Boat, Groton 5.1942 24.1.1943 4/1943 Naval Reserve TS 6.1946, stricken 12.1960 Gato
SS265 Peto   Manitowoc SB 6.1941 30.4.1942 11/1942 Naval Reserve TS 11.1956, stricken 8.1960 Gato
SS266 Pogy   Manitowoc SB 9.1941 23.6.1942 1/1943 stricken 9.1958 Gato
SS267, 12.1951- SSR267 Pompon   Manitowoc SB 11.1941 15.8.1942 3/1943 radar picket submarine 12.1951, stricken 4.1960 Gato
SS268 Puffer   Manitowoc SB 2.1942 22.11.1942 4/1943 Naval Reserve TS 12.1946, stricken 7.1960 Gato
SS269, 12.1951- SSR269, 7.1960- AGSS269 Rasher   Manitowoc SB 5.1942 20.12.1942 6/1943 radar picket submarine 12.1951, auxiliary submarine 7.1960, miscellaneous unclassified submarine IXSS269 6.1971 Gato
SS270, 7.1952- SSR270, 7.1960- AGSS270 Raton   Manitowoc SB 5.1942 24.1.1943 7/1943 radar picket submarine 7.1952, auxiliary submarine 7.1960, stricken 6.1969 Gato
SS271, 1.1951- SSR271 Ray   Manitowoc SB 7.1942 28.2.1943 7/1943 radar picket submarine 1.1951, stricken 4.1960 Gato
SS272, 1.1951- SSR272, 8.1959- SS272, 6.1963- AGSS272 Redfin   Manitowoc SB 9.1942 4.4.1943 8/1943 radar picket submarine 1.1951, attack submarine 8.1959, auxiliary submarine 6.1963, Naval Reserve TS 5.1967, stricken 7.1970 Gato
SS273 Robalo   Manitowoc SB 10.1942 9.5.1943 9/1943 sunk 26.7.1944 Gato
SS274, 7.1952- SSR274, 8.1959- AGSS274 Rock   Manitowoc SB 12.1942 20.6.1943 1/1943 radar picket submarine 7.1952, auxiliary submarine 8.1959, stricken 9.1969 Gato
SS275 Runner   Portsmouth N Yd 12.1941 30.5.1942 7/1942 lost 1.7.1943 Gato
SS276 Sawfish   Portsmouth N Yd 1.1942 23.6.1942 8/1942 Naval Reserve TS 5.1947, stricken 4.1960 Gato
SS277 Scamp   Portsmouth N Yd 3.1942 20.7.1942 9/1942 sunk 16.11.1944 Gato
SS278 Scorpion   Portsmouth N Yd 3.1942 20.7.1942 10/1942 sunk 1.2.1944 Gato
SS279 Snook   Portsmouth N Yd 4.1942 15.8.1942 10/1942 lost 8.4.1945 Gato
SS280 Steelhead   Portsmouth N Yd 6.1942 11.9.1942 12/1942 Naval Reserve TS 1947, stricken 4.1960 Gato
SS281 Sunfish   Mare Island N Yd, Vallejo 9.1941 2.5.1942 7/1942 Naval Reserve TS 1949, stricken 5.1960 Gato
SS282, 7.1952- SSG282, 5.1965- SS282, 10.1966- APSS282, 1.1969- LPSS282 Tunny   Mare Island N Yd, Vallejo 11.1941 30.6.1942 9/1942 guided missile submarine 7.1952, attack submarine 5.1965, troop-carrying submarine 10.1966, amphibious transport submarine 1.1969, stricken 6.1969 Gato
SS283 Tinosa   Mare Island N Yd, Vallejo 2.1942 7.10.1942 1/1943 stricken 9.1958 Gato
SS284 Tullibee   Mare Island N Yd, Vallejo 4.1942 11.11.1942 2/1943 sunk 26.3.1944 Gato
SS361 Golet   Manitowoc SB 1.1943 1.8.1943 11/1943 sunk 14.6.1944 Gato
SS362, 2.1950- SSO362, 7.1952- AGSS362, 7.1957- AOSS362 Guavina   Manitowoc SB 3.1943 29.8.1943 12/1943 submarine oiler 2.1950, auxiliary submarine 7.1952, submarine oiler 7.1957, stricken 6.1967 Gato
SS363 Guitarro   Manitowoc SB 4.1943 26.9.1943 1/1944 to Turkey 8.1954 (Preveze) Gato
SS364 Hammerhead   Manitowoc SB 5.1943 24.10.1943 3/1944 to Turkey 10.1954 (Cerbe) Gato
SS285, 4.1960- AGSS285 Balao   Portsmouth N Yd 6.1942 27.10.1942 2/1943 auxiliary submarine 4.1960, stricken 8.1963 Balao
SS286, 12.1962- AGSS286 Billfish   Portsmouth N Yd 7.1942 12.11.1942 4/1943 Naval Reserve TS 1.1960, auxiliary submarine 12.1962, stricken 4.1968 Balao
SS287, 12.1962- AGSS287 Bowfin   Portsmouth N Yd 7.1942 7.12.1942 5/1943 Naval Reserve TS 1.1960, auxiliary submarine 12.1962, unclassified miscellaneous submarine IXSS287 6.1971 Balao
SS288, 12.1962- AGSS288 Cabrilla   Portsmouth N Yd 8.1942 24.12.1942 5/1943 Naval Reserve TS 1.1960, auxiliary submarine 12.1962, stricken 6.1968 Balao
SS289 Capelin   Portsmouth N Yd 9.1942 20.1.1943 6/1943 lost 12.1943 Balao
SS290 Cisco   Portsmouth N Yd 10.1942 24.12.1942 5.1943 sunk 28.9.1943 Balao
SS291, 4.1960- AGSS291 Crevalle   Portsmouth N Yd 11.1942 22.2.1943 6/1943 auxiliary submarine 4.1960, Naval Reserve TS 1962, stricken 4.1968 Balao
SS292, 12.1962- AGSS292 Devilfish 547 Cramp, Philadelphia 3.1942 30.5.1943 9/1944 auxiliary submarine 12.1962, stricken 3.1967 Balao
SS293 Dragonet 548 Cramp, Philadelphia 4.1942 18.4.1943 3/1944 stricken 6.1961 Balao
SS294 Escolar 549 Cramp, Philadelphia 6.1942 18.4.1943 6/1944 lost 10.1944 Balao
SS295, 12.1962- AGSS295 Hackleback 550 Cramp, Philadelphia 8.1942 30.5.1943 11.1944 auxiliary submarine 12.1962, stricken 3.1967 Balao
SS296 Lancetfish 551 Cramp, Philadelphia 12.1942 15.8.1943 2/1945 foundered 15.3.1945, never repaired Balao
SS297, 12.1962- AGSS297 Ling 552 Cramp, Philadelphia 11.1942 15.8.1943 6/1945 Naval Reserve TS 3.1960, auxiliary submarine 12.1962, unclassified miscellaneous submarine IXSS297 6.1971 Balao
SS298, 12.1962- AGSS298 Lionfish 553 Cramp, Philadelphia 12.1942 7.11.1943 11/1944 Naval Reserve TS 3.1960, auxiliary submarine 12.1962, unclassified miscellaneous submarine IXSS298 6.1971 Balao
SS299, 8.1949- AGSS299 Manta 554 Cramp, Philadelphia 1.1943 7.11.1943 12/1944 target 8.1949, auxiliary submarine 1953, Naval Reserve TS 1.1960, stricken 6.1967 Balao
SS300, 12.1962- AGSS300 Moray 555 Cramp, Philadelphia 4.1943 14.5.1944 1/1945 auxiliary submarine 12.1962, stricken 4.1967 Balao
SS301, 12.1962- AGSS301 Roncador 556 Cramp, Philadelphia 4.1943 14.5.1944 3/1945 Naval Reserve TS 2.1960, auxiliary submarine 12.1962, unclassified miscellaneous submarine IXSS301 6.1971 Balao
SS302 Sabalo 557 Cramp, Philadelphia 6.1943 4.6.1944 6/1945 stricken 7.1971 Balao
SS303, 6.1969- AGSS303 Sablefish 558 Cramp, Philadelphia 6.1943 4.6.1944 12/1945 auxiliary submarine 6.1969, stricken 11.1969 Balao
SS304, 12.1962- AGSS304 Seahorse   Mare Island N Yd, Vallejo 8.1942 9.1.1943 3/1943 auxiliary submarine 12.1962, stricken 3.1967 Balao
SS305 Skate   Mare Island N Yd, Vallejo 8.1942 4.3.1943 4/1943 target for nuclear tests 7.1946, sunk as target 5.10.1948 Balao
SS306 Tang   Mare Island N Yd, Vallejo 1.1943 17.8.1943 10/1943 sunk 24.10.1944 Balao
SS307 Tilefish   Mare Island N Yd, Vallejo 3.1943 25.10.1943 12/1943 to Venezuela 12.1960 (Carite) Balao
SS308 Apogon (ex-Abadejo)   Portsmouth N Yd 12.1942 10.3.1943 7/1943 sunk at nuclear tests 25.7.1946 Balao
SS309, 7.1960- AGSS309 Aspro (ex-Acedia)   Portsmouth N Yd 12.1942 7.4.1943 7/1943 auxiliary submarine 7.1960, stricken 9.1962 Balao
SS310, 12.1962- AGSS310 Batfish (ex-Acoupa)   Portsmouth N Yd 12.1942 5.5.1943 8/1943 Naval Reserve TS 1960, auxiliary submarine 12.1962, stricken 11.1969 Balao
SS311, 2.1960- AGSS311 Archerfish   Portsmouth N Yd 1.1943 28.5.1943 9/1943 auxiliary submarine 2.1960, stricken 5.1968 Balao
SS312, 2.1949- SSR312, 1.1961- SS312 Burrfish (ex-Arnillo)   Portsmouth N Yd 2.1943 18.6.1943 9/1943 radar picket submarine 2.1949, attack submarine 1.1961, to Canada 5.1961 (Grilse) Balao
SS313, 1.1948- SSP313, 1.1950- ASSP313, 10.1956- APSS313, 1.1969- LPSS313 Perch 83 Electric Boat, Groton 1.1943 12.9.1943 1/1944 submarine transport 1.1948, transport submarine 1.1950, submarine transport 10.1956, Naval Reserve TS 1967, amphibious transport submarine 1.1969, unclassified miscellaneous submarine IXSS313 6.1971 Balao
SS314 Shark 84 Electric Boat, Groton 1.1943 17.10.1943 2/1944 sunk 24.10.1944 Balao
SS315, 4.1948- SSP315, 1.1950- ASSP315, 10.1956- APSS315, 1.1969- LPSS315 Sealion 85 Electric Boat, Groton 2.1943 31.10.1943 4/1944 submarine transport 4.1948, transport submarine 1.1950, submarine transport 10.1956, Naval Reserve TS 1960, amphibious transport submarine 1.1969, stricken 3.1977 Balao
SS316 Barbel 86 Electric Boat, Groton 3.1943 14.11.1943 4/1944 sunk 4.2.1945 Balao
SS317, 4.1948- SSA317, 1.1950- ASSA317, 10.1955- SSG317 Barbero 87 Electric Boat, Groton 3.1943 12.12.1943 4/1944 cargo submarine 4.1948, guided missile submarine 10.1955, stricken 7.1964 Balao
SS318, 8.1949- AGSS318 Baya 88 Electric Boat, Groton 4.1943 2.1.1944 5/1944 auxiliary submarine (tests) 8.1949, stricken 10.1972 Balao
SS319, 10.1969- AGSS319, 6.1971- SS319 Becuna 89 Electric Boat, Groton 4.1943 30.1.1944 5/1944 auxiliary submarine 10.1969, attack submarine 6.1971, stricken 8.1973 Balao
SS320 Bergall 90 Electric Boat, Groton 5.1943 12.2.1944 6/1944 to Turkey 10.1958 (Turgut Reis) Balao
SS321, 12.1962- AGSS321 Besugo 91 Electric Boat, Groton 5.1943 27.2.1944 6/1944 to Italy 5.1966 (Francesco Morosini) Balao
SS322 Blackfin 92 Electric Boat, Groton 6.1943 12.3.1944 7/1944 stricken 9.1972 Balao
SS323 Caiman (ex-Blanquillo) 93 Electric Boat, Groton 6.1943 30.3.1944 7/1944 to Turkey 7.1972 (Dumlupınar) Balao
SS324, 1964- AGSS324 Blenny 94 Electric Boat, Groton 7.1943 9.4.1944 7/1944 auxiliary submarine 1964, stricken 8.1973 Balao
SS325 Blower 95 Electric Boat, Groton 7.1943 23.4.1944 8/1944 to Turkey 11.1950 (Dumlupınar) Balao
SS326 Blueback 96 Electric Boat, Groton 7.1943 7.5.1944 8/1944 to Turkey 5.1948 (İkinçi İnönü) Balao
SS327 Boarfish 97 Electric Boat, Groton 8.1943 21.5.1944 9/1944 to Turkey 5.1948 (Sakarya) Balao
SS328, 1966- AGSS328 Charr (ex-Bocaccio) 98 Electric Boat, Groton 8.1943 18.6.1944 9/1944 auxiliary submarine 1966, unclassified miscellaneous submarine IXSS328 6.1971 Balao
SS329 Chub (ex-Bonaci) 99 Electric Boat, Groton 9.1943 18.6.1944 10/1944 to Turkey 5.1948 (Gür) Balao
SS330 Brill 100 Electric Boat, Groton 9.1943 25.6.1944 10/1944 to Turkey 5.1948 (Birinçi İnönü) Balao
SS331, 1969- AGSS331 Bugara 101 Electric Boat, Groton 10.1943 2.7.1944 11/1944 auxiliary submarine 1969, stricken 10.1970 Balao
SS332 Bullhead 102 Electric Boat, Groton 10.1943 16.7.1944 12/1944 sunk 6.8.1945 Balao
SS333 Bumper 103 Electric Boat, Groton 11.1943 6.8.1944 12/1944 to Turkey 11.1950 (Çanakkale) Balao
SS334, 1962- AGSS334 Cabezon 104 Electric Boat, Groton 11.1943 27.8.1944 12/1944 auxiliary submarine 1962, stricken 5.1970 Balao
SS335, 1962- AGSS335 Dentuda (ex-Capidoli) 105 Electric Boat, Groton 11.1943 10.9.1944 12/1944 Naval Reserve TS 12.1946, auxiliary submarine 1962, stricken 2.1969 Balao
SS336, 7.1960- AGSS336 Capitaine 106 Electric Boat, Groton 12.1943 1.10.1944 1/1945 auxiliary submarine 7.1960, to Italy 3.1966 (Alfredo Cappellini) Balao
SS337, 1949- AGSS337, 1952- SSG337, 1962- SS337 Carbonero 107 Electric Boat, Groton 12.1943 15.10.1944 2/1945 auxiliary submarine (guided missile) 1949, attack submarine 1962, stricken 12.1970 Balao
SS338, 3.1968- AGSS338 Carp 108 Electric Boat, Groton 12.1943 12.11.1944 2/1945 auxiliary submarine 3.1968, unclassified miscellaneous submarine IXSS338 12.1971 Balao
SS339 Catfish 109 Electric Boat, Groton 1.1944 19.11.1944 3/1945 to Argentina 7.1971 (Santa Fé) Balao
SS340 Entemedor (ex-Chickwick) 110 Electric Boat, Groton 2.1944 17.12.1944 4/1945 to Turkey 7.1972 (Preveze) Balao
SS341 Chivo 111 Electric Boat, Groton 2.1944 14.1.1945 4/1945 to Argentina 7.1971 (Santiago del Estero) Balao
SS342, 1969- AGSS342 Chopper 112 Electric Boat, Groton 3.1944 4.2.1945 5/1945 auxiliary submarine 1969, unclassified miscellaneous submarine IXSS342 6.1971 Balao
SS343 Clamagore 113 Electric Boat, Groton 3.1944 25.2.1945 6/1945 stricken 6.1975 Balao
SS344 Cobbler 114 Electric Boat, Groton 4.1944 1.4.1945 8/1945 to Turkey 11.1973 (Çanakkale) Balao
SS345 Cochino 115 Electric Boat, Groton 4.1944 20.4.1945 8/1945 foundered 25.8.1949 Balao
SS346 Corporal 116 Electric Boat, Groton 4.1944 10.6.1945 11.1945 to Turkey 11.1973 (İkinçi İnönü) Balao
SS347 Cubera 117 Electric Boat, Groton 5.1944 17.6.1945 12.1945 to Venezuela 1.1972 (Tiburón) Balao
SS348, 1.1948- SSG348, 7.1954- SS348, 9.1969- AGSS348 Cusk 118 Electric Boat, Groton 5.1944 28.7.1945 2/1946 missile submarine 1.1948, attack submarine 7.1954, auxiliary submarine 9.1969, stricken 1.1971 Balao
SS349 Diodon 119 Electric Boat, Groton 6.1944 10.9.1945 3/1946 stricken 1.1971 Balao
SS350 Dogfish 120 Electric Boat, Groton 6.1944 27.10.1945 4/1946 to Brazil 7.1972 (Guanabara) Balao
SS351 Greenfish (ex-Doncella) 121 Electric Boat, Groton 6.1944 21.12.1945 6/1946 to Brazil 12.1973 (Amazonas) Balao
SS352 Halfbeak (ex-Dory) 122 Electric Boat, Groton 7.1944 19.2.1946 7/1946 stricken 7.1971 Balao
SS353 Dugong   Electric Boat, Groton --- --- --- cancelled 23.10.1944 Balao
SS354 Eel   Electric Boat, Groton --- --- --- cancelled 23.10.1944 Balao
SS355 Espada   Electric Boat, Groton --- --- --- cancelled 23.10.1944 Balao
SS356 Jawfish (ex-Fanegal)   Electric Boat, Groton --- --- --- cancelled 29.7.1944 Balao
SS357 Ono (ex-Friar)   Electric Boat, Groton --- --- --- cancelled 29.7.1944 Balao
SS358 Garlopa   Electric Boat, Groton --- --- --- cancelled 29.7.1944 Balao
SS359 Garrupa   Electric Boat, Groton --- --- --- cancelled 29.7.1944 Balao
SS360 Goldring   Electric Boat, Groton --- --- --- cancelled 29.7.1944 Balao
SS365 Hardhead   Manitowoc SB 7.1943 12.12.1943 4/1944 to Greece 7.1972 (Παπανικολής [Papanikolis]) Balao
SS366 Hawkbill   Manitowoc SB 8.1943 9.1.1944 5/1944 to Netherlands 4.1953 (Zeeleuw) Balao
SS367 Icefish   Manitowoc SB 9.1943 20.2.1944 6/1944 to Netherlands 2.1953 (Walrus) Balao
SS368 Jallao   Manitowoc SB 9.1943 12.3.1944 7/1944 to Spain 6.1974 (S35) Balao
SS369 Kete   Manitowoc SB 10.1943 9.4.1944 7/1944 lost 3.1945 Balao
SS370 Kraken   Manitowoc SB 12.1943 30.4.1944 9/1944 to Spain 10.1959 (Almirante García de los Reyes) Balao
SS371 Lagarto   Manitowoc SB 1.1944 28.5.1944 10/1944 sunk 3.5.1945 Balao
SS372 Lambrey   Manitowoc SB 2.1944 18.6.1944 11/1944 to Argentina 8.1960 (Santa Fé) Balao
SS373 Lizardfish   Manitowoc SB 3.1944 16.7.1944 12/1944 to Italy 1.1960 (Evangelista Torricelli) Balao
SS374, 12.1962- AGSS374 Loggerhead   Manitowoc SB 4.1944 13.8.1944 2/1945 auxiliary submarine 12.1962, stricken 6.1967 Balao
SS375 Macabi   Manitowoc SB 5.1944 19.9.1944 3/1945 to Argentina 11.1960 (Santiago del Estero) Balao
SS376 Mapiro   Manitowoc SB 5.1944 9.11.1944 4/1945 to Turkey 3.1960 (Piri Reis) Balao
SS377 Menhaden   Manitowoc SB 6.1944 20.12.1944 6/1945 stricken 8.1973 Balao
SS378 Mero   Manitowoc SB 7.1944 17.1.1945 8/1945 to Turkey 4.1960 (Hızır Reis) Balao
SS379 Needlefish   Manitowoc SB --- --- --- cancelled 29.7.1944 Balao
SS380 Nerka   Manitowoc SB --- --- --- cancelled 29.7.1944 Balao
SS381 Sand Lance (ex-Ojanco, ex-Orca)   Portsmouth N Yd 3.1943 25.6.1943 10/1943 to Brazil 9.1963 (Rio Grande do Sul) Balao
SS382 Picuda (ex-Obispo)   Portsmouth N Yd 3.1943 12.7.1943 10/1943 to Spain 10.1972 (Narciso Monturiol) Balao
SS383, 12.1962- AGSS383 Pampanito   Portsmouth N Yd 3.1943 12.7.1943 11/1943 Naval Reserve TS 4.1960, auxiliary submarine 12.1962, unclassified miscellaneous submarine IXSS383 6.1971 Balao
SS384, 12.1962- AGSS384 Parche   Portsmouth N Yd 4.1943 24.7.1943 11/1943 Naval Reserve TS 3.1947, auxiliary submarine 12.1962, stricken 11.1969 Balao
SS385 Bang   Portsmouth N Yd 4.1943 30.8.1943 12/1943 to Spain 10.1972 (Cosme García) Balao
SS386 Pilotfish   Portsmouth N Yd 5.1943 30.8.1943 12/1943 sunk at nuclear tests 25.7.1946 Balao
SS387, 12.1962- AGSS387 Pintado   Portsmouth N Yd 5.1943 15.9.1943 1/1944 auxiliary submarine 12.1962, stricken 3.1967 Balao
SS388, 12.1962- AGSS388 Pipefish   Portsmouth N Yd 5.1943 12.10.1943 1/1944 auxiliary submarine 12.1962, stricken 3.1967 Balao
SS389, 12.1962- AGSS389 Piranha   Portsmouth N Yd 6.1943 27.10.1943 2/1944 auxiliary submarine 12.1962, stricken 3.1967 Balao
SS390 Plaice   Portsmouth N Yd 6.1943 15.11.1943 2/1944 to Brazil 9.1963 (Bahia) Balao
SS391 Pomfret   Portsmouth N Yd 7.1943 27.10.1943 2/1944 to Turkey 7.1971 (Oruç Reis) Balao
SS392 Sterlet (ex-Pudiano)   Portsmouth N Yd 7.1943 27.10.1943 3.1944 stricken 10.1968 Balao
SS393, 7.1960- AGSS393 Queenfish   Portsmouth N Yd 7.1943 30.11.1943 3.1944 auxiliary submarine 7.1960, stricken 3.1963 Balao
SS394 Razorback   Portsmouth N Yd 9.1943 27.1.1944 4.1944 to Turkey 11.1970 (Murat Reis) Balao
SS395, 7.1960- AGSS395 Redfish   Portsmouth N Yd 9.1943 27.1.1944 4.1944 auxiliary submarine 7.1960, stricken 6.1968 Balao
SS396 Ronquil   Portsmouth N Yd 9.1943 27.1.1944 4.1944 to Spain 7.1971 (Isaac Peral) Balao
SS397 Scabbardfish   Portsmouth N Yd 9.1943 27.1.1944 4.1944 to Greece 2.1965 (Τρίαινα [Triaina]) Balao
SS398 Segundo   Portsmouth N Yd 10.1943 5.2.1944 5.1944 stricken 8.1970 Balao
SS399, 9.1949- AGSS399, 12.1951- SS399, 6.1968- AGSS399 Sea Cat   Portsmouth N Yd 10.1943 30.2.1944 5.1944 auxiliary submarine 9.1949, attack submarine 12.1951, auxiliary submarine 6.1968, stricken 12.1968 Balao
SS400, 7.1960- AGSS400 Sea Devil   Portsmouth N Yd 11.1943 28.2.1944 5.1944 auxiliary submarine 7.1960, stricken 4.1964 Balao
SS401, 12.1962- AGSS401 Sea Dog   Portsmouth N Yd 11.1943 28.3.1944 6.1944 Naval Reserve TS 2.1960, auxiliary submarine 12.1962, stricken 12.1968 Balao
SS402 Sea Fox   Portsmouth N Yd 11.1943 28.3.1944 6.1944 to Turkey 12.1970 (Burak Reis) Balao
SS403, 10.1969- AGSS403, 6.1971- SS403 Atule   Portsmouth N Yd 11.1943 6.3.1944 6.1944 auxiliary submarine 10.1969, attack submarine 6.1971, stricken 8.1973, to Peru (Pacocha) Balao
SS404, 7.1962- AGSS404 Spikefish (ex-Shiner)   Portsmouth N Yd 1.1944 26.4.1944 6.1944 auxiliary submarine 7.1962, stricken 5.1963 Balao
SS405, 6.1969- AGSS405 Sea Owl   Portsmouth N Yd 2.1944 7.5.1944 7.1944 auxiliary submarine 6.1969, stricken 11.1969 Balao
SS406, 11.1969- AGSS406, 6.1971- SS406 Sea Poacher   Portsmouth N Yd 2.1944 20.5.1944 7.1944 auxiliary submarine 11.1969, attack submarine 6.1971, stricken 8.1973, to Peru (Pabelon da Pica) Balao
SS407 Sea Robin   Portsmouth N Yd 3.1944 25.5.1944 7.1944 stricken 10.1970 Balao
SS408 Sennet   Portsmouth N Yd 3.1944 6.6.1944 8.1944 stricken 12.1968 Balao
SS409, 6.1967- AGSS409 Piper (ex-Awa)   Portsmouth N Yd 3.1944 26.6.1944 8.1944 stricken 7.1970 Balao
SS410 Threadfin (ex-Sole)   Portsmouth N Yd 3.1944 26.6.1944 8.1944 to Turkey 8.1972 (Birinçi İnönü) Balao
SS411, 12.1962- AGSS411 Spadefish   Mare Island N Yd, Vallejo 5.1943 8.1.1944 3.1944 stricken 4.1967 Balao
SS412, 12.1962- AGSS412 Trepang (ex-Senoria)   Mare Island N Yd, Vallejo 6.1943 8.1.1944 5.1944 Naval Reserve TS 1960, auxiliary submarine 12.1962, stricken 6.1967 Balao
SS413 Spot   Mare Island N Yd, Vallejo 8.1943 19.5.1944 8.1944 to Chile 1.1962 (Simpson) Balao
SS414 Springer   Mare Island N Yd, Vallejo 10.1943 3.8.1944 10.1944 to Chile 1.1961 (Thomson) Balao
SS415 Stickleback   Mare Island N Yd, Vallejo 3.1944 1.1.1945 3.1945 collision 29.5.1958 Balao
SS416 Tiru   Mare Island N Yd, Vallejo 4.1944 16.6.1947 9.1948 stricken 7.1975 Balao


100 - 1000 t displacement/ BRT tonnage vessels


Data variant Migraine conversion

Displacement standard, t  

Displacement normal, t

Migraine I: 1525 / 2410

Migraine III: 1700 /

Length, m

Migraine I: 95.1

Migraine III: 104.1

Breadth, m

8.30

Draught, m  

No of shafts

2

Machinery

SSR267, 269-272, 274: 4 General Motors diesel-generators / 2 electric motors

SSR312: 4 Fairbanks-Morse diesel-generators / 2 electric motors

Power, h. p.

4610 / 1750

Max speed, kts

17 / 8

Fuel, t

diesel oil 378 - 472 Endurance, nm(kts) 12000 (10) /

Armament

Migraine I: 1 x 1 - 40/60 Mk 3, 4 - 533 TT (12, bow)

Migraine III: 6 - 533 TT (18, bow)

Electronic equipment

Migraine I: SS, SV-1, SV-2, BPS-2 radars, WFA, JT sonars, APR-1 ECM suite

Migraine III: BPS-2, BPS-3, BPS-4 radars, WFA, JT sonars, BLR-1 ECM suite

Complement

Migraine I: 82 - 90

Migraine III: 95 - 108

Diving depth operational, m

Migraine I: 120

Migraine III: 90


Technical data


Data variantas commissioned except SS416 Migraine conversion GUPPY II modernization Fleet Snorkel modernization missile submarines GUPPY IB modernization SSK conversion GUPPY IIA modernization GUPPY III modernization
Displacement standard, t                 
Displacement normal, t

SS212 - 284, 361 - 364: 1810 / 2410

SS285 - 360, 365 - 415: 1845 / 2415

Migraine I: 1525 / 2410

Migraine III: 1700 /

1870 / 2440

1830 / 2440

1525 / 2400

1830 / 2440

1848 / 2440

1848 / 2440

1975 / 2450

Length, m

92.2 wl 95.0 oa

Migraine I: 95.1

Migraine III: 104.1

93.6

95.0

95.1

93.6

93.6

93.6

99.5

Breadth, m

8.31

8.30

8.20

8.31

8.30

8.20

8.20

8.20

8.20

Draught, m

4.65

 

5.20

5.20

 

5.20

5.20

5.20

5.20

No of shafts

2

2

2

2

2

2

2

2

2

Machinery

SS212-227, 327, 328, 331, 333, 337,338: 4 General Electric diesel-generators / 4 electric motors

SS228-237, 275-284, 292-312, 381-416, 425, 426: 4 Fairbanks-Morse diesel-generators / 4 electric motors

SS238-252, 265-274, 285-291, 313-326, 329, 330, 332, 334-336, 339-352, 361-380: 4 General Motors diesel-generators / 4 electric motors

SS253-264: 4 Hoover, Owens, Rentschler diesel-generators / 4 electric motors

SSR267, 269-272, 274: 4 General Motors diesel-generators / 2 electric motors

SSR312: 4 Fairbanks-Morse diesel-generators / 2 electric motors

SS339, 343-347, 349-352: 4 General Motors diesel-generators / 4 electric motors

SS416: 4 Fairbanks-Morse diesel-generators / 4 electric motors

SS302, 303, 307, 392, 397-399, 405, 408, 409: 4 Fairbanks-Morse diesel-generators / 4 electric motors

SS320, 325, AGSS336, SS363, 364: 4 General Motors diesel-generators / 4 electric motors

SS331, 333, 337, 338: 4 General Electric diesel-generators / 4 electric motors

SSG282: 3 Fairbanks-Morse diesel-generators / 4 electric motors

SSG317: 2 General Motors diesel-generators / 4 electric motors

SSG337, SS348: 4 General Electric diesel-generators / 4 electric motors

SS348: 4 General Motors diesel-generators / 4 electric motors

SS220: 4 General Electric diesel-generators / 4 electric motors

SS247, 319, 322-324, 341, 366, 367: 4 General Motors diesel-generators / 4 electric motors

SS403, 406, 407: 4 Fairbanks-Morse diesel-generators / 4 electric motors

SSK214: 2 General Electric diesel-generators / 4 electric motors

SSK240-244, 246: 2 General Motors diesel-generators / 4 electric motors

SS340, 365, 368, 377: 3 General Motors diesel-generators / 4 electric motors

SS382, 385, 391, 394, 396, 402, 410, 415: 3 Fairbanks-Morse diesel-generators / 4 electric motors

SS343, 344, 346, 351: 4 general Motors diesel-generators / 4 electric motors

SS416: 4 Fairbank-Morse diesel-generators / 4 electric motors

Power, h. p.

5400 / 2740

4610 / 1750

4610 / 5400

4610 / 2700

SSG282: 3430 / 2740

SSG317: 2305 / 2305

SSG337, SS348: 5400 / 2740

4610 / 5400

2305 / 5400

3430 / 5400

4610 / 5400

Max speed, kts

20.25 / 8.75

17 / 8

18 / 16 (9 with snorkel)

20 / 10 (6.5 with snorkel)

SSG282: 17 / 9

SSG317: 15 / 9

SSG337, SS348: 20 / 9

18 / 15 (7.5 with snorkel)

14 / 15

17 / 15

17.2 / 14.5

Fuel, t

diesel oil 378 - 472

diesel oil 378 - 472

diesel oil 378 - 472

diesel oil 378 - 472

diesel oil 378 - 472

diesel oil 378 - 472

diesel oil 378 - 472

diesel oil 378 - 472

diesel oil 378 - 472

Endurance, nm(kts)11000 (10) / 96 (2) 12000 (10) / 11000 (10) / 96 (2) 11000 (10) / 96 (2) 11000 (10) / 96 (2) 11000 (10) / 96 (2) 11000 (10) / 96 (2) 11000 (10) / 96 (2) 11000 (10) / 96 (2)
Armament

SS212 - 223, 228 - 239, 253  - 255, 275 - 279, 281, 282: 1 x 1 - 76/50 Mk 17/18, 2 x 1 - 12.7/90, 10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

SS224: 1 x 1 - 125/25 Mk 17, 2 x 1 - 12.7/90, 10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

SS225 - 227, 240 - 252, 257 - 274, 280, 283, 284: 1 x 1 - 102/50 Mk 9, 2 x 1 - 20/70 Mk 4, 10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

SS256: 1 x 1 - 127/51 Mk 9, 2 x 1 - 12.7/90, 10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

SS285 - 291: 1 x 1 - 102/50 Mk 9, 2 x 1 - 20/70 Mk 4, 10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

SS292 - 312: 1 x 1 - 127/25 Mk 17, 2 x 1 - 20/70 Mk 4, 10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

SS313 - 352, 361 - 378, 381 - 415: 1 x 1 - 127/25 Mk 17, 1 x 1 - 40/56 Mk 1.2, 1 x 1 - 20/70 Mk 4, 10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

SS348 - 352: 1 x 1 - 127/25 Mk 40, 1 x 1 - 40/60 Mk 3, 1 x 1 - 20/70 Mk 10, 10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

Migraine I: 1 x 1 - 40/60 Mk 3, 4 - 533 TT (12, bow)

Migraine III: 6 - 533 TT (18, bow)

10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

1 x 1 - 127/25 Mk 40 (few), 10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

SSG282 and SSG337 in Regulus program (from 1953): 2 Regulus I CruM launchers (2 RGM-6), 10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

SSG317: 2 Regulus I CruM launchers (2 RGM-6), 6 - 533 TT (16 torpedoes or 28 mines, bow)

SSG337, SS348: 2 Loon CruM launchers (2 LTV-N-2), 10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

Electronic equipment

presumably SS212 - 219, 228 - 239: SD radar, WCA or WDA, JK sonars

presumably SS220 - 227, 240 - 291, 293, 294, 304 - 321, 361 - 367, 381 - 404, 411, 412: SD, SJ radars, WDA, JP sonars

presumably SS292, 295, 298, 299, 322 - 335, 368 - 373, 405 - 410, 413, 414: SD, SJ, ST radars, WDA, JP sonars, APR-1 ECM suite

presumably SS296, 300, 336 - 338, 374: SJ, ST, SV radars, WDA, JP sonars, APR-1 ECM suite

presumably SS301, 339 - 342, 375, 376, 415: SJ, ST, SV radars, WDA, JP sonars, APR-1 ECM suite

presumably SS297, 302, 303, 343 - 352, 377, 378: SS, ST, SV radars, WFA, JT sonars, APR-1 ECM suite

Migraine I: SS, SV-1, SV-2, BPS-2 radars, WFA, JT sonars, APR-1 ECM suite

Migraine III: BPS-2, BPS-3, BPS-4 radars, WFA, JT sonars, BLR-1 ECM suite

SS, ST, SV radars, BQR-2, BQS-2, JT or SQR-3 sonars, APR-1 ECM suite SS, ST, SV radars, BQR-2, BQS-2, JT or SQR-3 sonars, APR-1 ECM suite

SSG282, 317, 337 from 1953: SS, SV-6, BPS-1, BPS-4 radars, BQR-2, BQS-2, JT sonars, BLR-1 ECM suite

SSG337, SS348: SS, ST, SV-4 radars, BQR-2, BQS-2, JT sonars, APR-1 ECM suite

SS, SV, BPS-1 radars, BQR-2, BQS-2, JT or SQR-3 sonars, APR-1 ECM suite SS, SV, BPS-1 radars, BQR-2, BQS-2, SQR-3, BQR-4 sonars, BLR-1 ECM suite BPS-1, BPS-4, SS radars, BQR-2, BQS-2, SQR-3 sonars, BLR-1 ECM suite BPS-1, BPS-4, BPS-5 radars, BQR-2, BQS-2, SQR-3, BQG-4 PUFFS (most submarines) sonars, BLR-1 ECM suite
Complement

60

Migraine I: 82 - 90

Migraine III: 95 - 108

82

82

84

82

82

82

86

Diving depth operational, m

SS212 - 284, 361 - 364: 90

SS285 - 360, 365 - 415: 120

Migraine I: 120

Migraine III: 90

120

120

SSG282: 90

SSG317, 337, SS348: 120

GUPPY IA: 120

GUPPY IB: 90

90 120

120



Standard scale images


<i>Barbero </i> 1963
Barbero 1963
<i>Guavina </i> 1963
Guavina 1963
<i>Whale</i> 1942
Whale 1942
<i>Tang</i> 1944
Tang 1944
<i>Barbero</i> 1944
Barbero 1944
<i>Burrfish</i> 1954
Burrfish 1954
<i>Ray</i> 1954
Ray 1954
  <i>Razorback</i> 1955
  Razorback 1955
  <i>Clamagore</i> 1963    
  Clamagore 1963    
<i>Halfbeak</i> 1954
Halfbeak 1954
<i>Carp</i> 1953
Carp 1953
<i>Tunny</i> 1953
Tunny 1953
  <i>Sea Poacher</i> 1953
  Sea Poacher 1953
<i>Bashaw</i> 1953
Bashaw 1953
<i>Hake</i> 1943
Hake 1943
<i>Perch </i>1955
Perch 1955
<i>Hawkbill</i> 1944
Hawkbill 1944
<i>Pampanito</i> 1944
Pampanito 1944


Graphics


<i>Gato</i> 1944
Gato 1944
<i>Redfin</i> 1957
Redfin 1957
<i>Sabalo</i> 1953
Sabalo 1953
<i>Diodon</i> 1965
Diodon 1965
<i>Cusk</i> 1948
Cusk 1948


Project history

Under the FY1941 program the building of eight Gato class submarines (SS212-219) was provided. Basically repeated predecessors of Gar class, the main difference consisted in return to diesel-electric drive and some increase in a length to allow to improve hull subdivision on compartments and to divide engine room by watertight bulkhead.

In May, 1940 the decision on building of 28 more (SS220-247) Gato class submarines followed, and in two months 37 more boats (SS248-284) were ordered. Under the "Emergency" 1942 program it was provided to build 132 more submarines of a little advanced Balao class (SS285-416), but in 1944 the order for 10 boats (SS353-360, 379 and 380) was cancelled.

Double-hulled submarines. Since SS285 Balao project received a number of improvements in hull construction (basically technological), allowed to simplify building and simultaneously led to some economy of weight. This prize was expended on pressure hull strengthening, then the diving depth has increased to 120m. Diving depth has formed the basis of setting off of Balao class submarines into separate group. As submarines of both classes were built in a parallel way throughout all second half of war, differences between submarines in one group frequently were more than between Balao and Gato classes (except a diving depth).

First Gato class submarines became operational with traditional large streamlined CT, but already from late 1942, CT was replaced by new smaller, with the special platforms for AA guns. Subsequently earlier submarines also received CTs rebuilt in a similar way.

The design artillery consisted from 76/50mm gun and two 12.7mm MGs, and first Gatos were completed so. From late 1942 submarines received more powerful artillery consisted from 102/50mm gun and two 20mm Oerlikons. In 1943 submarines were commissioned with one-two 127/25mm guns and two 20mm Oerlikons. Part of boats had one or both 20mm MGs replaced by 40mm Boforses.

Modernizations

1943, Greenling, Grouper, Flying Fish, Kingfish: CT was rebuilt; - 1 x 1 - 76/50, 2 x 1 - 12.7/90; + 1 x 1 - 127/25 Mk 17, 2 x 1 - 20/70 Mk 4

1943 - 1944, many earlier submarines: CT was rebuilt; - 1 x 1 - 76/50, 2 x 1 - 12.7/90; + (1 - 2) x 1 - 127/25 Mk 17, (1 x 1 - 40/56 Mk 1.2, 1 x 1 - 20/70 Mk 4) or 2 x 1 - 20/70 Mk 4

1944 - 1945, many submarines: - 1 x 1 - 102/50; + (1 - 2) x 1 - 127/25 Mk 17

1945, many submarines: - 1 x 1 - 20/70; + 1 x 1 - 40/56 Mk 1.2

1945, Flying Fish, Entemedor, Sea Cat, Sea Dog, Sea Poacher, Sea Robin, Sennet: were armed with 2 x 1 - 127/25 Mk 17, 2 x 1 - 40/56 Mk 1.2, 10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern), SJ, ST, SV radars, WFA, JT sonars

1945, Barb, Chivo, Chopper: + 6 x 12 - 127 Mk 51 RL

1/1946, SS212-214, 217, 220-222, 224, 225, 228-231, 234-236, 239-247, 249, 251-256, 258-272, 274, 276, 280-283, 285-288, 291-293, 295, 297-305, 307-313, 315, 317-331, 333-347, 362-368, 370, 372-378, 381-415: 10 - 533 TT (6 bow, 4 stern, 24), 1 x 1 - 127/25 Mk 40, 1.1946, (1 x 1 - 40/60 Mk 3, 1 x 1 - 20/70 Mk 10) or 2 x 1 - 20/70 Mk 10, SS, ST, SV radars, WDA or WFA, JT sonars, APR-1 ECM suite

late 1940s, almost all submarines: had WFA, JT sonars

1946 - 1953, part of submarines was converted to radar pickets by Migraine program with data as given in the table.

1949, Burrfish: was converted by "Migraine" program; she can use their radars only when surfaced, later converted submarines had snorkel and can use radars in cruise position.

1952, Ray; 1953, Pompon, Rasher, Raton, Redfin, Rock: were converted by "Migraine III" program