Argonaut 1945
Trutta 1945
Spinax 1946
Requin 1954
nearly sister-ship Halfbeak 1954
nearly sister-ship Carp 1953
nearly sister-ship Sea Poacher 1953
nearly sister-ship Razorback 1955
nearly sister-ship Clamagore 1963
No | Name | Yard No | Builder | Laid down | Launched | Comm | Fate |
SS417, 10.1969- AGSS417, 6.1971- SS417 | Tench | Portsmouth N Yd | 4.1944 | 7.7.1944 | 10.1944 | auxiliary submarine 10.1969, attack submarine 6.1971, stricken 8.1973, to Peru (spares) | |
SS418 | Thornback | Portsmouth N Yd | 4.1944 | 7.7.1944 | 10.1944 | to Turkey 7.1971 (Uluç Ali Reis) | |
SS419, 4.1948- SSR419, 3.1961- SS419, 12.1963- AGSS419 | Tigrone | Portsmouth N Yd | 5.1944 | 20.7.1944 | 10.1944 | radar picket submarine 4.1948, attack submarine 3.1961, auxiliary submarine 12.1963, stricken 6.1975 | |
SS420 | Tirante | Portsmouth N Yd | 4.1944 | 9.8.1944 | 11.1944 | stricken 10.1973 | |
SS421 | Trutta (ex-Tomatate) | Portsmouth N Yd | 5.1944 | 18.8.1944 | 11.1944 | to Turkey 7.1972 (Cerbe) | |
SS422, 7.1962- AGSS422 | Toro | Portsmouth N Yd | 5.1944 | 23.8.1944 | 12.1944 | auxiliary submarine 7.1962, stricken 4.1963 | |
SS423, 5.1968- AGSS423 | Torsk | Portsmouth N Yd | 6.1944 | 6.9.1944 | 12.1944 | auxiliary submarine 5.1968, unclassified miscellaneous submarine IXSS423 6.1971 | |
SS424 | Quillback (ex-Trembler) | Portsmouth N Yd | 6.1944 | 1.10.1944 | 12.1944 | stricken 3.1973 | |
SS425 | Trumpetfish | 559 | Cramp, Philadelphia | 8.1943 | 13.5.1945 | 1.1946 | to Brazil 10.1973 (Goiás) |
SS426 | Tusk | 560 | Cramp, Philadelphia | 8.1943 | 8.7.1945 | 4.1946 | to Taiwan 10.1973 (海豹 [Hai Pao]) |
SS427 | Turbot | 561 | Cramp, Philadelphia | 11.1943 | 12.4.1946 | --- | cancelled 12.8.1945 |
SS428 | Ulua | 562 | Cramp, Philadelphia | 11.1943 | 23.4.1946 | --- | cancelled 12.8.1945 |
SS429 | Unicorn | 563 | Cramp, Philadelphia | --- | --- | --- | cancelled 29.7.1944 |
SS430 | Vandace | 561 | Cramp, Philadelphia | --- | --- | --- | cancelled 29.7.1944 |
SS431 | Walrus | 565 | Cramp, Philadelphia | --- | --- | --- | cancelled 29.7.1944 |
SS432 | Whitefish | 566 | Cramp, Philadelphia | --- | --- | --- | cancelled 29.7.1944 |
SS433 | Whiting | 567 | Cramp, Philadelphia | --- | --- | --- | cancelled 29.7.1944 |
SS434 | Wolffish | 568 | Cramp, Philadelphia | --- | --- | --- | cancelled 29.7.1944 |
SS435, 4.1960- AGSS435 | Corsair | 123 | Electric Boat, Groton | 3.1945 | 3.5.1946 | 11.1946 | auxiliary submarine 4.1960, stricken 2.1963 |
SS436 | Unicorn | 124 | Electric Boat, Groton | 4.1945 | 1.8.1946 | (9/1946) | accepted without commission, stricken 6.1958 |
SS437 | Walrus | 125 | Electric Boat, Groton | 6.1945 | 20.9.1946 | (10/1946) | accepted without commission, stricken 6.1958 |
SS475 | Argonaut | Portsmouth N Yd | 6.1944 | 1.10.1944 | 1.1945 | to Canada 12.1968 (Rainbow) | |
SS476, 2.1969- AGSS476 | Runner | Portsmouth N Yd | 7.1944 | 17.10.1944 | 2.1945 | auxiliary submarine 2.1969, Naval Reserve TS 1970, unclassified miscellaneous submarine IXSS476 6.1971 | |
SS477, 3.1962- AGSS477 | Conger | Portsmouth N Yd | 7.1944 | 17.10.1944 | 2.1945 | auxiliary submarine 3.1962, stricken 8.1963 | |
SS478 | Cutlass | Portsmouth N Yd | 7.1944 | 5.11.1944 | 3.1945 | to Taiwan 4.1973 (海獅 [Hai Shih]) | |
SS479, 7.1962- AGSS479 | Diablo | Portsmouth N Yd | 8.1944 | 1.12.1944 | 3.1945 | auxiliary submarine 7.1962, to Pakistan 6.1964 (غازی [Ghazi]) | |
SS480, 5.1967- AGSS480, 10.1969- SS480 | Medregal | Portsmouth N Yd | 8.1944 | 15.12.1944 | 4.1945 | auxiliary submarine 5.1967, attack submarine 10.1969, stricken 8.1970 | |
SS481, 1.1948- SSR481, 8.1959- SS481, 6.1968- AGSS481 | Requin | Portsmouth N Yd | 8.1944 | 1.1.1945 | 4.1945 | radar picket submarine 1946, attack submarine 8.1959, auxiliary submarine 6.1968, Naval Reserve TS 1969, unclassified miscellaneous submarine IXSS481 6.1971 | |
SS482, 6.1969- AGSS482 | Irex | Portsmouth N Yd | 10.1944 | 26.1.1945 | 5.1945 | auxiliary submarine 6.1969, stricken 11.1969 | |
SS483 | Sea Leopard | Portsmouth N Yd | 11.1944 | 2.3.1945 | 6.1945 | to Brazil 3.1973 (Bahia) | |
SS484 | Odax | Portsmouth N Yd | 12.1944 | 10.4.1945 | 7.1945 | to Brazil 7.1972 (Rio de Janeiro) | |
SS485 | Sirago | Portsmouth N Yd | 1.1945 | 11.5.1945 | 8.1945 | stricken 6.1972 | |
SS486 | Pomodon | Portsmouth N Yd | 1.1945 | 12.6.1945 | 9.1945 | stricken 8.1970 | |
SS487 | Remora | Portsmouth N Yd | 3.1945 | 12.7.1945 | 1.1946 | to Greece 10.1973 (Κατσώνης [Katsonis]) | |
SS488, 7.1962- AGSS488 | Sarda | Portsmouth N Yd | 4.1945 | 24.8.1945 | 4.1946 | auxiliary submarine 7.1962, stricken 6.1964 | |
SS489, 1.1948- SSR489, 8.1959- SS489, 6.1969- AGSS489 | Spinax | Portsmouth N Yd | 5.1945 | 20.11.1945 | 9.1946 | radar picket submarine, attack submarine 8.1959, auxiliary submarine 6.1969, stricken 10.1969 | |
SS490 | Volador | Portsmouth N Yd | 6.1945 | 17.1.1946 | 10.1948 | to Italy 8.1972 (Gianfranco Gazzana Priaroggia) | |
SS491 | Pompano | Portsmouth N Yd | 7.1945 | --- | --- | cancelled 12.8.1945 | |
SS492 | Grayling | Portsmouth N Yd | --- | --- | --- | cancelled 12.8.1945 | |
SS493 | Needlefish | Portsmouth N Yd | --- | --- | --- | cancelled 12.8.1945 | |
SS494 | Sculpin | Portsmouth N Yd | --- | --- | --- | cancelled 12.8.1945 | |
SS516 | Wahoo | Portsmouth N Yd | 5.1944 | --- | --- | cancelled 7.1.1946 | |
SS517 | Portsmouth N Yd | 5.1944 | --- | --- | cancelled 29.7.1944 | ||
SS522 | Amberjack | Boston N Yd, Charlestown | 2.1944 | 15.12.1944 | 3.1946 | to Brazil 10.1972 (Ceará) | |
SS523 | Grampus | Boston N Yd, Charlestown | 2.1944 | 15.12.1944 | 10.1947 | to Brazil 7.1972 (Rio Grande do Sul) | |
SS524 | Pickerel | Boston N Yd, Charlestown | 2.1944 | 15.12.1944 | 4.1949 | to Italy 8.1972 (Primo Longobardo) | |
SS525 | Grenadier | Boston N Yd, Charlestown | 2.1944 | 15.12.1944 | 2.1951 | to Venezuela 5.1973 (Picua) | |
SS526 | Dorado | Boston N Yd, Charlestown | 1944 | --- | --- | cancelled 29.7.1944 | |
SS527 | Comber | Boston N Yd, Charlestown | --- | --- | --- | cancelled 29.7.1944 | |
SS528 | Sea Panther | Boston N Yd, Charlestown | --- | --- | --- | cancelled 29.7.1944 | |
SS529 | Tiburon | Boston N Yd, Charlestown | --- | --- | --- | cancelled 29.7.1944 |
Data variant | as commissioned except SS489, 490, 523-525 |
Displacement standard, t |
|
Displacement normal, t |
1845 / 2415 |
Length, m |
92.2 wl 95.0 oa |
Breadth, m |
8.31 |
Draught, m |
4.70 |
No of shafts |
2 |
Machinery |
SS417-424, 475-491, 522-525: 4 Fairbanks-Morse diesel-generators / 4 electric motors SS435-437: 4 General Motors diesel-generators / 4 electric motors |
Power, h. p. |
5400 / 2740 |
Max speed, kts |
20.25 / 8.75 |
Fuel, t |
diesel oil 378 - 472 |
Endurance, nm(kts) | 11000 (10) - 12000 (10) / 96 (2) |
Armament |
SS417 - 424: 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) SS425, 426, 435 - 437: 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) SS475 - 486: 2 x 1 - 127/25 Mk 17, 1 x 1 - 40/56 Mk 1.2, 1 x 1 - 20/70 Mk 4, 10 - 533 TT (28 torpedoes or 40 mines, 6 bow, 4 stern) SS487, 488, 522: 2 x 1 - 127/25 Mk 40, 1 x 1 - 40/60 Mk 3, 1 x 1 - 20/70 Mk 10, 10 - 533 TT (28 torpedoes or 40 mines, 6 bow, 4 stern) |
Electronic equipment |
presumably SS417 - 424: SD, SJ, ST radars, WDA, JP sonars, APR-1 ECM suite presumably SS475 - 482: SJ, ST, SV radars, WDA, JP sonars, APR-1 ECM suite presumably SS425, 426, 435, 483 - 488, 522: SS, ST, SV radars, WFA, JT sonars, APR-1 ECM suite |
Complement |
60 |
Diving depth operational, m |
SS417 - 437: 120 SS475 - 529: 135 |
Project history: Further development of Gato and Balao classes. Design of new submarine received enhanced internal subdivision on compartments, hull durability also was raised, that has led to displacement growth approximately on 35-40t. In remaining they differed from predecessors a little. Last series, from SS475, was projected on the bigger operational diving depth (135 m, maximum permissible 225m), besides, they had increased to 28 torpedo stowage.
In total in 1942-1943 146 new submarines were ordered (SS417-562), however in 1944-1945 building of 112 boats (SS427-434, 438-474, 491-515, 517-521 and 526-562) was cancelled. In 1946 also SS516 was cancelled, and building of SS436 and 437 was suspended and eventually they were sold for scrap incomplete. As a result 31 boat were completed only.
Modernizations: 1945, Requin: + 6 x 12 - 127 Mk 51 RL
1.1946, SS417-424: 10 - 533 TT (6 bow, 4 stern, 24), 1 x 1 - 127/25 Mk 40, 1 x 1 - 40/60 Mk 3, 1 x 1 - 20/70 Mk 10, SD, SJ, ST radars, WDA, JP sonars, APR-1 ECM suite
1.1946, SS475-486: 10 - 533 TT (6 bow, 4 stern, 28), 2 x 1 - 127/25 Mk 40, 1 x 1 - 40/60 Mk 3, 1 x 1 - 20/70 Mk 10, SS or SJ, ST, SV radars, WFA, JT sonars, APR-1 ECM suite
1946 - 1953, part of submarines was converted to radar pickets by Migraine program with data as given in the table.
9.1946 (as completed), Spinax; 1946, Requin: converted by Migraine program, they can use their radars only when surfaced, later converted submarines had snorkel and can use radars in cruise position.
1948, Tigrone: was converted by Migraine I program
1950, Requin, Spinax: were converted by Migraine II program
Data variant | Migraine conversion |
Displacement standard, t |
|
Displacement normal, t |
Migraine 0, I: 1525 / 2410 Migraine II: 1570 / 2410 |
Length, m |
95.1 |
Breadth, m |
8.30 |
Draught, m |
|
No of shafts |
2 |
Machinery |
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 |
1 x 1 - 40/60 Mk 3, 4 - 533 TT (12, bow) |
Electronic equipment |
Migraine: SS, SV-1, SV-2 radars, WFA, JT sonars, APR-1 ECM suite Migraine I: SS, SV-1, SV-2, BPS-2 radars, sonars, WFA, JT sonars, APR-1 ECM suite Migraine II: SS, SV, SV-2, SR-2 radars, sonars, WFA, JT sonars, APR-1 ECM suite |
Complement |
Migraine I: 82 - 90 Migraine II: 82 - 85 |
Diving depth operational, m |
Migraine 0, II: 135 Migraine I: 120 |
1947, Odax, Pomodon: were reconstructed by GUPPY I design, as follows: new, more powerful enlarged battery was installed, hull, CT and superstructure were streamlined, all guns were removed. See data in the table.
Data variant | GUPPY I modernization |
Displacement standard, t |
|
Displacement normal, t |
1830 / 2440 |
Length, m |
93.6 |
Breadth, m |
8.20 |
Draught, m |
5.20 |
No of shafts |
2 |
Machinery |
4 Fairbanks-Morse diesel-generators / 4 electric motors |
Power, h. p. |
4610 / 5400 |
Max speed, kts |
18 / 18 |
Fuel, t |
diesel oil 378 - 472 |
Endurance, nm(kts) | 11000 (10) / 96 (2) |
Armament |
10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern) |
Electronic equipment |
SS, ST, SV radars, BQR-2, BQS-2, JT sonars, APR-1 ECM suite |
Complement |
82 |
Diving depth operational, m |
135 |
1947, Grampus (as commissioned); 1948, Volador (as commissioned); 1949, Pickerel (as commissioned); 1951, Grenadier (as commissioned); 1947, Remora; 1948, Trumpetfish, Tusk, Cutlass, Amberjack; 1949, Sea Leopard, Sirago; 1951, Odax, Pomodon were commissioned by GUPPY II design and modernized, as follows: new, more powerful and enlarged battery was installed, hull, CT and superstructure were streamlined, all guns were removed. Snorkel was installed. See data in the table.
Data variant | GUPPY II modernization |
Displacement standard, t |
|
Displacement normal, t |
1870 / 2440 |
Length, m |
93.6 |
Breadth, m |
8.20 |
Draught, m |
5.20 |
No of shafts |
2 |
Machinery |
4 Fairbanks-Morse diesel-generators / 4 electric motors |
Power, h. p. |
4610 / 5400 |
Max speed, kts |
18 / 16 (9 with snorkel) |
Fuel, t |
diesel oil 378 - 472 |
Endurance, nm(kts) | 11000 (10) / 96 (2) |
Armament |
10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern) |
Electronic equipment |
SS, ST, SV radars, BQR-2, BQS-2, JT or SQR-3 sonars, APR-1 ECM suite |
Complement |
82 |
Diving depth operational, m |
SS425, 476: 120 SS478, 483 - 487, 522: 135 |
1947, Irex; 1952, Torsk, Argonaut, Runner, Medregal; 1964, Diablo: were modernized by "Fleet Snorkel" design, as follows: CT and superstructure were streamlined, all guns were removed. Snorkel was installed. Data was as given in the table.
Data variant | Fleet Snorkel modernization |
Displacement standard, t |
|
Displacement normal, t |
1830 / 2440 |
Length, m |
95.0 |
Breadth, m |
8.31 |
Draught, m |
5.20 |
No of shafts |
2 |
Machinery |
4 Fairbanks-Morse diesel-generators / 4 electric motors |
Power, h. p. |
4610 / 2700 |
Max speed, kts |
20 / 10 (6.5 with snorkel) |
Fuel, t |
diesel oil 378 - 472 |
Endurance, nm(kts) | 11000 (10) / 96 (2) |
Armament |
1 x 1 - 127/25 Mk 40 (few), 10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern) |
Electronic equipment |
SS, ST, SV radars, BQR-2, BQS-2, JT or SQR-3 sonars, APR-1 ECM suite |
Complement |
82 |
Diving depth operational, m |
SS423: 120 SS475, 476, 479, 480, 482: 135 |
1950, Tench: was modernized by GUPPY IA design, as follows: battery was enlarged, hull, CT and superstructure were streamlined, all guns were removed. Snorkel was installed. See data in the table.
Data variant | GUPPY IA modernization |
Displacement standard, t |
|
Displacement normal, t |
1830 / 2440 |
Length, m |
93.6 |
Breadth, m |
8.20 |
Draught, m |
5.20 |
No of shafts |
2 |
Machinery |
4 Fairbanks-Morse diesel-generators / 4 electric motors |
Power, h. p. |
4610 / 5400 |
Max speed, kts |
18 / 15 (7.5 with snorkel) |
Fuel, t |
diesel oil 378 - 472 |
Endurance, nm(kts) | 11000 (10) / 96 (2) |
Armament |
10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern) |
Electronic equipment |
SS, SV, BPS-1 radars, BQR-2, BQS-2, JT or SQR-3 sonars, APR-1 ECM suite |
Complement |
82 |
Diving depth operational, m |
120 |
1952, Tirante; 1953, Thornback, Trutta, Quillback: were modernized by GUPPY IIA design, as follows: battery was enlarged, hull, CT and superstructure were streamlined, all guns were removed. Snorkel and new sonars were installed. One diesel was removed. SS418 Thornback can also used as target. See data in the table.
Data variant | GUPPY IIA modernization |
Displacement standard, t |
|
Displacement normal, t |
1848 / 2440 |
Length, m |
93.6 |
Breadth, m |
8.20 |
Draught, m |
5.20 |
No of shafts |
2 |
Machinery |
3 Fairbanks-Morse diesel-generators / 4 electric motors |
Power, h. p. |
3430 / 5400 |
Max speed, kts |
17 / 15 |
Fuel, t |
diesel oil 378 - 472 |
Endurance, nm(kts) | 11000 (10) / 96 (2) |
Armament |
10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern) |
Electronic equipment |
BPS-1, BPS-4, SS radars, BQR-2, BQS-2, SQR-3 sonars, APR-1 ECM suite |
Complement |
82 |
Diving depth operational, m |
120 |
1956 - 1960, all "Migraine I and II" submarines were reconverted to conventional attack submarines, all additional radars were removed.
1962, Trumpetfish, Pickerel; 1963, Remora, Volador: were modernized by GUPPY III design, as follows: Hull was longed, CT was replaced by new. New sonars were installed. Submarines can launch Mk 45 Astor nuclear torpedoes. Data was as given in the table.
Data variant | GUPPY III modernization |
Displacement standard, t |
|
Displacement normal, t |
1975 / 2450 |
Length, m |
99.5 |
Breadth, m |
8.20 |
Draught, m |
5.20 |
No of shafts |
2 |
Machinery |
4 Fairbanks-Morse diesel-generators / 4 electric motors |
Power, h. p. |
4610 / 5400 |
Max speed, kts |
17.2 / 14.5 |
Fuel, t |
diesel oil 378 - 472 |
Endurance, nm(kts) | 11000 (10) / 96 (2) |
Armament |
10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern) |
Electronic equipment |
BPS-1, BPS-4, BPS-5 radars, BQR-2, BQS-2, SQR-3, BQG-4 PUFFS (most submarines), BLR-1 ECM suite |
Complement |
86 |
Diving depth operational, m |
SS425: 120 SS487, 490, 524: 135 |
Naval service: Diablo and Medregal were sunk at trials of new weapons in 1971 and 1970 respectively.
Argonaut 1946
Spinax 1956
© Ivan Gogin, 2014-15