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Permit-class submarine

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the frequency of blade-rate was directly related to the speed of the submarine (the RPM of the screw). The solution was to either make the screw smaller so it did not hit the wakes of the sail and control surfaces, which would cavitate more easily because of its increased speed, or have a large screw that gently interacted with these areas of disturbed water. The latter solution was chosen for all subsequent American SSNs.
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depth. It was determined that the source of this noise, called blade-rate, was the blades of the screw vibrating when they hit the wake of the sail and control surfaces. This produced a noise that could carry for many miles and could be used by an enemy submarine to set up a firing solution because
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were designed under project SCB 188M and were fitted with a larger sail, to house additional masts, and built 13 feet 9 inches longer than the other units of the class to include more SUBSAFE features, additional reserve buoyancy, more intelligence gathering equipment and improved accommodations.
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The boats had their torpedo tubes moved to the middle of the hull and angled outboard. This made available the required large space in the bow for the BQQ-2 (BQQ-5 as modernized from the late 1970s) sonar sphere, a new and powerful low-frequency detection sensor. Initially armed with
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were made using an improved design that extended test depth to 1,300 ft (400 m). The engineering spaces were also redesigned, with the turbines supported on "rafts" that were suspended from the hull on isolation mounts for
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inspectors in the engineering crew, and tracks extremely detailed information about every component of a submarine that is subject to sea pressure. Joints in any equipment carrying seawater must be
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and later submarines of this class had seven-bladed skewback screws, which reduced the problem of blade-rate, but reduced the submarines' top speed to 29–28 knots (54–52 km/h; 33–32 mph).
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s were the first class fitted with the Mark 113 fire control system that enabled the use of SUBROC; they were later upgraded with the Mark 117 system. In the late 1970s the
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and a reduced number of electronics masts, less convenient surfaced operation in rough seas, and an increased possibility of "broaching" (inadvertent surfacing) at
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was designed with counter-rotating screws, each of which were smaller than the standard seven-bladed screw, as an alternative solution to the blade-rate problem.
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propulsion system using concentric counter-rotating propellers. Although counter-rotating propellers produced impressive gains in speed on the experimental
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had numerous advanced design features and embodied the future of US Navy submarine design, and her loss was a serious blow. As a result, the
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s, according to one recollection. However, the small sail had disadvantages as well, including room for only one
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Lost with 129 crewmembers and shipyard personnel on 10 April 1963, 200 nautical miles (370 km) east of
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s and other submarines were rebuilt to SUBSAFE standards. SUBSAFE includes specific training of SUBSAFE
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was also used to test polymer ejection that could reduce flow noises that degraded sonar performance.
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The maximum weapons load was 23 torpedoes/missiles or, theoretically, up to 42 Mk 57, Mk 60, or Mk 67
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program was instituted to correct design flaws and introduce strict manufacturing and construction
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learned from various prototypes and experimental platforms. The design was managed under project
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Cold War Submarines: The Design and Construction of U.S. and Soviet Submarines, 1945-2001
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was lost on 10 April 1963, the class took the name of the second ship in the class,
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Rig Ship for Ultra Quiet: Life on a nuclear attack boat at the end of the Cold War
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Recycled via the nuclear Ship and Submarine Recycling Program 30 September 1994.
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Recycled via the nuclear Ship and Submarine Recycling Program 17 February 1995.
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the results were disappointing because of the difficulty in sealing the shaft.
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The class received mid-life upgrades in the late 1970s and 1980s, including the
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was completed with the larger sail but the standard 279-foot (85 m) hull.
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Cold War Submarines: The Design and Construction of U.S. and Soviet Submarines
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Recycled via the nuclear Ship and Submarine Recycling Program 1 January 1997.
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Recycled via the nuclear Ship and Submarine Recycling Program 15 August 1992.
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in critical systems. The seawater and main ballast systems of future classes (
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Recycled via the nuclear Ship and Submarine Recycling Program 14 March 1996.
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Recycled via the nuclear Ship and Submarine Recycling Program 30 June 1992.
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Recycled via the nuclear Ship and Submarine Recycling Program 20 June 1992.
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Recycled via the nuclear Ship and Submarine Recycling Program 8 March 1996.
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from the early 1960s until 1996. They were a significant improvement on the
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Recycled via the nuclear Ship and Submarine Recycling Program 11 May 1994.
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Recycled via the nuclear Ship and Submarine Recycling Program 9 July 1992.
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Jane's Submarines, War Beneath The Waves, From 1776 To The Present Day
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was lengthened by 10 feet (3.0 m) to accommodate an experimental
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class was one of several results from a study commissioned in 1956 by
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short-range anti-submarine missile, replacing up to six Mk 48s. The
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The first submarine commissioned in the class was the ill-fated
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was introduced; typically four were carried in place of Mk 48s.
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Recycled via the nuclear Ship and Submarine Recycling Program.
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Recycled via the nuclear Ship and Submarine Recycling Program.
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The gaps in the hull number sequence were taken by the unique
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class, it was found that the propeller produced noise below
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U.S. Submarines Since 1945: An Illustrated Design History
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Conventional-powered cruise missile submarines - SSG
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List of submarine classes of the United States Navy
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List of submarine classes of the United States Navy
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List of submarine classes of the United States Navy
1521:Conway's All the World's Fighting Ships 1947–1995 607:s, which allowed her to reach this speed. During 699:, and so the class was known by her name. When 2068:Conventional-powered attack submarines - SS or 1420: 1418: 1416: 1414: 1412: 266:28 knots (52 km/h; 32 mph) submerged 659:, by the late 1960s they carried the improved 244:2 steam turbines, 15,000 shp (11 MW) 1810: 1617: 580:(61 km/h; 38 mph), the same as the 8: 2203:List of submarines of the United States Navy 1779:List of submarines of the United States Navy 1384:List of submarines of the United States Navy 460:", the Committee on Undersea Warfare of the 2244:Vietnam War submarines of the United States 844:fleet ballistic missile submarine classes. 1817: 1803: 1795: 1624: 1610: 1602: 462:United States National Academy of Sciences 2239:Cold War submarines of the United States 1519:Gardiner, Robert and Chumbley, Stephen, 846: 599:was fitted with a five-bladed symmetric 199:4,300 long tons (4,369 t) submerged 1523:, London: Conway Maritime Press, 1995. 1408: 541:80,000 psi (550 MPa)) as the 1534:Karam, P. Andrew and Thompson, Roger, 521:was an alternate design optimized for 29: 1591:NavSource.org SSN Photo Gallery Index 488:plant from the immediately preceding 7: 1484:Polmar, Norman; Moore, K. J. (2004) 954:Ship and Submarine Recycling Program 533:system. Although they used the same 263:(28 km/h; 17 mph) surfaced 209:278 ft 5 in (84.86 m) 525:, much smaller and slower than the 2145:Auxiliary submarines - AGSS or SSA 276:Unlimited, except by food supplies 225:25 ft 2 in (7.67 m) 217:31 ft 7 in (9.63 m) 25: 1394:Ship Characteristics Board – USS 92: 33: 1825:US submarine classes after 1945 642:sonar suite with a retractable 511:used in the concurrently-built 18:Thresher/Permit class submarine 484:The new class kept the proven 80:General Dynamics Electric Boat 27:US Navy fast attack submarines 1: 1435:United States Naval Institute 507:sphere and angled, amidships 1833:ballistic missile submarines 735:) were redesigned, and some 1548:, Harper Paperbacks, 2005. 2260: 933:Mare Island Naval Shipyard 412:hull classification symbol 284:1,300 ft (400 m) 65:Mare Island Naval Shipyard 2198: 2184: 1904:cruise missile submarines 1774: 1748: 1642: 1510:War Machines Encyclopedia 1475:Friedman, pp. 136–42, 243 1425:Friedman, Norman (1994). 1251: 1110:Portsmouth Naval Shipyard 1108: 1039: 952:Recycled via the nuclear 931: 890:Portsmouth Naval Shipyard 873: 855: 565:greatly reduced in size. 531:turbo-electric propulsion 450:Chief of Naval Operations 414:SSN) in service with the 402:was lost) was a class of 171: 60:Portsmouth Naval Shipyard 48: 32: 1437:. pp. 141–46, 243. 425:, with greatly improved 2234:Permit-class submarines 1559:Polmar, Norman (2004). 1488:, Potomac Books, p. 363 1352:Pascagoula, Mississippi 1179:Pascagoula, Mississippi 1006:Pascagoula, Mississippi 917:, exact cause unknown. 366:anti-submarine missiles 196:(3,810 t) surfaced 172:General characteristics 1582:On Eternal Patrol USS 523:anti-submarine warfare 470:anti-submarine warfare 1598:at GlobalSecurity.org 1563:. Dulles: Brassey's. 1214:New York Shipbuilding 1041:New York Shipbuilding 75:New York Shipbuilding 2191:Single ship of class 2116:submarines - SSR or 1596:SSN-594 Permit class 1544:Hutchinson, Robert, 1500:Friedman, pp. 143–46 1457:Friedman, pp. 235–36 1348:Ingalls Shipbuilding 1175:Ingalls Shipbuilding 1002:Ingalls Shipbuilding 395:until the lead boat 356:, later replaced by 70:Ingalls Shipbuilding 2007:Glenard P. Lipscomb 1431:Annapolis, Maryland 787:The engine room of 529:s and with a quiet 327:Electronic warfare 313:Fire-control system 1218:Camden, New Jersey 1114:16 September 1960 1085:16 December 1964 1045:Camden, New Jersey 871:Period of service 757:was not SUBSAFE). 576:a top speed of 33 568:The small sail of 416:United States Navy 373:anti-ship missiles 299:processing systems 100:United States Navy 2229:Submarine classes 2216: 2215: 1934:attack submarines 1875:Benjamin Franklin 1843:George Washington 1792: 1791: 1636:-class submarines 1569:978-1-57488-594-1 1540:Google Books link 1375: 1374: 1362:22 December 1967 1317:15 December 1961 1228:20 December 1966 1222:13 February 1961 1144:24 November 1959 1079:9 September 1960 1019:20 December 1989 977:21 November 1962 828:George Washington 741:quality assurance 728:Benjamin Franklin 676:anti-ship missile 657:Mark 37 torpedoes 559:acoustic quieting 466:submarine warfare 408:attack submarines 379: 378: 354:Mark 37 torpedoes 181:Nuclear submarine 119:Succeeded by 16:(Redirected from 2251: 1932:Nuclear-powered 1902:Nuclear-powered 1831:Nuclear-powered 1819: 1812: 1805: 1796: 1626: 1619: 1612: 1603: 1513: 1507: 1501: 1498: 1489: 1482: 1476: 1473: 1467: 1466:Friedman, p. 143 1464: 1458: 1455: 1449: 1448: 1422: 1323:25 January 1968 1293:3 November 1967 1231:2 February 1992 1192:2 December 1988 1153:15 January 1992 1150:17 October 1964 1147:9 December 1961 1010:9 November 1959 974:9 December 1961 847: 725:-class SSNs and 663:and the nuclear 641: 552: 499:s had the large 386:-class submarine 344:21 inch (533 mm) 315:(later Mark 117) 98: 96: 95: 37: 30: 21: 2259: 2258: 2254: 2253: 2252: 2250: 2249: 2248: 2219: 2218: 2217: 2212: 2194: 2180: 2140: 2108: 2063: 2044: 1927: 1897: 1826: 1823: 1793: 1788: 1770: 1744: 1638: 1630: 1578: 1516: 1508: 1504: 1499: 1492: 1483: 1479: 1474: 1470: 1465: 1461: 1456: 1452: 1445: 1424: 1423: 1410: 1406: 1380: 1287:15 August 1961 1186:18 August 1962 1082:18 August 1962 1016:24 August 1963 980:3 January 1990 868:Decommissioned 817: 719:quality control 691: 652: 635: 592:in rough seas. 590:periscope depth 550: 482: 404:nuclear-powered 328: 298: 93: 91: 44: 28: 23: 22: 15: 12: 11: 5: 2257: 2255: 2247: 2246: 2241: 2236: 2231: 2221: 2220: 2214: 2213: 2211: 2210: 2205: 2199: 2196: 2195: 2193: 2192: 2189: 2185: 2182: 2181: 2179: 2178: 2171: 2164: 2157: 2148: 2146: 2142: 2141: 2139: 2138: 2131: 2122: 2120: 2110: 2109: 2107: 2106: 2098: 2091: 2083: 2074: 2072: 2065: 2064: 2062: 2061: 2052: 2050: 2046: 2045: 2043: 2042: 2034: 2026: 2018: 2010: 2003: 1996: 1988: 1980: 1973: 1965: 1957: 1950: 1942: 1940: 1929: 1928: 1926: 1925: 1917: 1909: 1907: 1899: 1898: 1896: 1895: 1887: 1879: 1871: 1863: 1855: 1847: 1838: 1836: 1828: 1827: 1824: 1822: 1821: 1814: 1807: 1799: 1790: 1789: 1787: 1786: 1781: 1775: 1772: 1771: 1769: 1768: 1759: 1749: 1746: 1745: 1743: 1742: 1735: 1728: 1721: 1714: 1707: 1700: 1693: 1686: 1679: 1672: 1665: 1658: 1651: 1643: 1640: 1639: 1631: 1629: 1628: 1621: 1614: 1606: 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870: 867: 865:Commissioned 864: 861: 858: 852: 849: 848: 845: 843: 841: 836: 835: 830: 829: 824: 823: 814: 812: 810: 806: 802: 801: 796: 792: 791: 785: 783: 782: 776: 775: 770: 769: 764: 763: 758: 756: 755: 750: 746: 742: 738: 734: 731: 729: 724: 720: 716: 712: 708: 707: 702: 698: 697: 688: 686: 684: 679: 677: 674: 670: 666: 665:UUM-44 SUBROC 662: 658: 649: 647: 645: 639: 634: 629: 627: 623: 618: 614: 610: 606: 602: 598: 593: 591: 587: 583: 579: 575: 571: 566: 564: 560: 555: 548: 544: 540: 536: 532: 528: 524: 520: 516: 515: 510: 509:torpedo tubes 506: 502: 498: 494: 492: 487: 479: 477: 475: 471: 467: 463: 459: 455: 454:Arleigh Burke 451: 447: 442: 440: 439: 434: 433: 428: 424: 422: 417: 413: 409: 405: 401: 400: 394: 392: 387: 385: 372: 368: 365: 364:UUM-44 SUBROC 361: 359: 355: 351: 348: 347:torpedo tubes 345: 341: 340: 339: 336: 335: 331: 326: 325: 320: 317: 314: 310: 308:(later BQQ-5) 307: 303: 302: 301: 296: 295: 291: 288: 287: 283: 280: 279: 275: 272: 271: 265: 262: 258: 257: 256: 253: 252: 246: 243: 241: 238: 234: 233: 232: 229: 228: 224: 221: 220: 216: 213: 212: 208: 205: 204: 198: 195: 191: 190: 189: 186: 185: 182: 179: 176: 175: 170: 166: 163: 162: 158: 155: 154: 150: 147: 146: 142: 140:In commission 139: 138: 134: 131: 130: 127: 125: 121: 118: 117: 114: 112: 108: 105: 104: 101: 90: 87: 86: 81: 78: 76: 73: 71: 68: 66: 63: 61: 58: 57: 56: 53: 52: 47: 42: 36: 31: 19: 2174: 2167: 2160: 2152: 2134: 2126: 2114:Radar picket 2101: 2094: 2086: 2078: 2056: 2037: 2029: 2021: 2013: 2006: 1999: 1991: 1983: 1982: 1976: 1968: 1960: 1953: 1946: 1920: 1913: 1890: 1882: 1874: 1866: 1858: 1850: 1842: 1763: 1754: 1738: 1731: 1724: 1717: 1710: 1703: 1696: 1689: 1682: 1675: 1668: 1661: 1654: 1647: 1633: 1632: 1583: 1560: 1545: 1535: 1520: 1509: 1505: 1485: 1480: 1471: 1462: 1453: 1426: 1395: 1359:21 May 1966 1338: 1320:14 May 1964 1308: 1278: 1266:26 May 1992 1243: 1225:15 May 1965 1204: 1183:6 June 1960 1165: 1135: 1100: 1070: 1055:26 May 1964 1031: 1013:11 Feb 1962 992: 962: 943:29 May 1962 940:1 July 1961 923: 897:9 July 1960 894:28 May 1958 880: 853:Hull number 839: 833: 827: 821: 818: 808: 804: 799: 795:direct-drive 789: 786: 780: 773: 767: 761: 759: 753: 736: 727: 722: 710: 705: 700: 695: 692: 689:Construction 680: 668: 653: 630: 625: 621: 612: 604: 596: 594: 581: 573: 569: 567: 546: 542: 526: 518: 513: 496: 490: 483: 445: 443: 437: 431: 420: 398: 390: 389: 383: 382: 380: 329:& decoys 297:Sensors and 187:Displacement 123: 110: 40: 2014:Los Angeles 1851:Ethan Allen 834:Ethan Allen 644:towed array 636: [ 486:S5W reactor 438:Los Angeles 106:Preceded by 2223:Categories 1404:References 859:Laid Down 825:, and the 617:cavitation 319:Periscopes 289:Complement 281:Test depth 230:Propulsion 2079:Barracuda 1859:Lafayette 1725:Greenling 1711:Guardfish 1279:Greenling 1205:Guardfish 862:Launched 840:Lafayette 768:Greenling 586:periscope 503:-mounted 441:classes. 397:USS  349:amidships 311:Mark 113 194:long tons 148:Completed 143:1961–1996 135:1958–1967 88:Operators 43:(SSN-593) 2161:Albacore 2127:Sailfish 2057:Grayback 2030:Virginia 1992:Sturgeon 1977:Tullibee 1969:Skipjack 1947:Nautilus 1891:Columbia 1764:Sturgeon 1755:Skipjack 1648:Thresher 1584:Thresher 1396:Thresher 1378:See also 1344:SSN-621 1314:SSN-615 1284:SSN-614 1249:SSN-613 1210:SSN-612 1171:SSN-607 1141:SSN-606 1106:SSN-605 1076:SSN-604 1037:SSN-603 998:SSN-596 968:SSN-595 929:SSN-594 911:Cape Cod 886:SSN-593 881:Thresher 856:Builder 822:Tullibee 800:Albacore 754:Scorpion 737:Thresher 723:Sturgeon 711:Thresher 701:Thresher 696:Thresher 669:Thresher 650:Armament 633:AN/BQQ-5 613:Skipjack 605:Skipjack 597:Thresher 582:Skipjack 574:Thresher 570:Thresher 547:Thresher 543:Skipjack 527:Thresher 519:Tullibee 514:Tullibee 497:Thresher 491:Skipjack 446:Thresher 432:Sturgeon 421:Skipjack 399:Thresher 391:Thresher 358:Mark 48s 352:12-18 × 337:Armament 124:Sturgeon 111:Skipjack 54:Builders 41:Thresher 2168:Dolphin 2022:Seawolf 2000:Narwhal 1954:Seawolf 1914:Halibut 1739:Haddock 1718:Flasher 1676:Pollack 1662:Plunger 1339:Haddock 1244:Flasher 1032:Pollack 963:Plunger 781:Haddock 762:Flasher 715:SUBSAFE 661:Mark 48 611:of the 545:s, the 537:steel ( 474:SCB 188 456:. In " 247:1 shaft 164:Retired 2135:Triton 2102:Barbel 2095:Darter 2038:SSN(X) 1984:Permit 1906:- SSGN 1835:- SSBN 1697:Tinosa 1655:Permit 1634:Permit 1567:  1552:  1527:  1441:  1136:Tinosa 924:Permit 842:-class 837:, and 771:, and 749:brazed 745:welded 730:-class 706:Permit 622:Permit 609:trials 480:Design 384:Permit 362:4-6 × 304:BQQ-2 206:Length 192:3,750 97:  2155:class 2129:class 2104:class 2089:class 2081:class 2059:class 2040:class 2032:class 2024:class 2016:class 1994:class 1986:class 1971:class 1963:class 1961:Skate 1923:class 1893:class 1885:class 1877:class 1869:class 1861:class 1853:class 1845:class 1766:class 1757:class 1683:Haddo 1368:25.3 1329:28.2 1299:26.4 1269:25.8 1234:25.0 1195:24.7 1156:27.3 1126:23.3 1091:26.4 1071:Haddo 1061:24.8 1022:26.3 983:27.0 949:29.0 874:Fate 850:Name 803:, in 747:(not 733:SSBNs 683:mines 640:] 601:screw 595:Only 578:knots 551:' 535:HY-80 505:sonar 427:sonar 423:class 406:fast 393:class 306:sonar 273:Range 261:knots 254:Speed 222:Draft 132:Built 126:class 113:class 2175:NR-1 2118:SSRN 2087:Tang 1921:Ohio 1883:Ohio 1732:Gato 1704:Dace 1690:Jack 1669:Barb 1586:page 1565:ISBN 1550:ISBN 1525:ISBN 1439:ISBN 1398:loss 1309:Gato 1166:Dace 1101:Jack 993:Barb 906:1.7 809:Jack 805:Jack 790:Jack 774:Gato 626:Jack 563:sail 468:and 444:The 435:and 381:The 369:4 × 342:4 × 214:Beam 177:Type 156:Lost 39:USS 2153:T-1 2070:SSK 1938:SSN 1350:, 1177:, 1004:, 501:bow 332:ESM 292:112 259:15 240:PWR 237:S5W 2225:: 1936:- 1538:. 1493:^ 1433:: 1429:. 1411:^ 1216:, 1043:, 913:, 903:— 831:, 765:, 709:. 638:uk 476:. 235:1 167:13 151:14 2188:S 1818:e 1811:t 1804:v 1625:e 1618:t 1611:v 1571:. 1556:. 1531:. 1447:. 549:s 493:s 410:( 159:1 20:)

Index

Thresher/Permit class submarine

Portsmouth Naval Shipyard
Mare Island Naval Shipyard
Ingalls Shipbuilding
New York Shipbuilding
General Dynamics Electric Boat
United States Navy
Skipjack class
Sturgeon class
Nuclear submarine
long tons
S5W
PWR
knots
sonar
Fire-control system
Periscopes
21 inch (533 mm)
torpedo tubes
Mark 37 torpedoes
Mark 48s
UUM-44 SUBROC
UGM-84 Harpoon
USS Thresher
nuclear-powered
attack submarines
hull classification symbol
United States Navy
Skipjack class

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