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U-20-class submarine

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100: 500: 42: 635: 466:. Although the Austro-Hungarian Navy was not happy with the design, which was largely obsolete, it was the only design for which plans were available and which could be begun immediately in domestic shipyards. The Austro-Hungarian Navy unenthusiastically placed orders for four boats on 27 March 1915. 474:
Before construction could begin, the Navy found itself in the midst of political situation because the Hungarian government demanded that a substantial portion of the submarine contracts be allocated to Hungarian firms. After intricate negotiations, the order was split into two orders of two
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yard at Fiume. The subcontracts were also divided between Hungarian and Austrian firms, with about two-thirds going to Hungarian companies and one-third to Austrian companies. This allocation of contracts, while politically expedient, exacerbated technical problems that resulted in numerous
395:-class design was largely obsolete by the beginning of the war. Political considerations caused the order to be split between Austrian and Hungarian firms, which contributed to construction problems and delays, keeping any of the boats from being operational until the middle of 1917. 531:
for surface running, and a single 160 shp (120 kW) electric motor for submerged travel. The boats were capable of 12 knots (22 km/h) while surfaced and 9 knots (17 km/h) while submerged. Although there is no specific notation of a range for the
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consisted of six largely experimental submarines, two of which were not operational. When it became apparent that the war would not be a short one, Austria-Hungary moved to bolster their U-boat fleet by seizing the plans for the Danish
519:-class boats were ocean-going submarines that displaced 173 tonnes (191 short tons) surfaced and 210 tonnes (231 short tons) submerged. The boats were 127 feet 2 inches (38.76 m) long with a 579:
class suffered from unreliable engines which compounded the already poor handling characteristics of the boats. None of the class had any successes and two of their number were sunk during the war.
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class, upon which it was based, had a range of 1,400 nautical miles (2,600 km) at 10 knots (19 km/h), surfaced, and 23 nautical miles (43 km) at 8 knots (15 km/h) submerged. The
551:-class boats were armed with two 45 cm (17.7 in) torpedo tubes located in the front and carried a complement of two torpedoes. They were also equipped with a 66 mm/26 (2.6 in) 387:
With a small fleet of six U-boats at the beginning of World War I, two of which were not operational, the Austro-Hungarian Navy acted to bolster its fleet. They reluctantly ordered four
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yard and was launched on 27 January 1917, the last of the class to be launched. The still-incomplete boat sank in the harbor at
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again conducted patrols off Albania. A broken piston in her diesel engine cut short her war career. At Pola at the war's end,
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on 29 September 1915 at the Pola Navy Yard. She was launched on 18 September 1916. During diving trials in March 1917,
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was built at the Pola Navy Yard and was launched on 15 August 1916, and was the first of the class to be launched.
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Sources report the date of the attack as being variously on the night of 4/5 July, on 6 July, or on 9 July.
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of 9 feet (2.7 m). For propulsion, they featured a single shaft, a single 450 bhp (340 kW)
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The class boats were just over 127 feet (39 m) long and were armed with two front torpedo tubes, a
341: 105: 31: 1884: 2102: 2095: 2088: 2053: 1844: 1702: 406:. The engines for the boats were unreliable, which compounded handling problems with the design. The 1599: 858:
in June 1917, but was raised, repaired, and relaunched in October. From her November commissioning,
1817: 1366: 987:, it blew debris into the air, sinking the submarine with all hands. Like all of her sister boats, 793:
was damaged in a diving trial in January 1917, requiring seven months for repairs. The U-boat was
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was hit by one torpedo at a range of 650 yards (590 m) and sank with all hands west of
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Die Schiffe der k.(u.)k. Kriegsmarine im Bild = Austro-Hungarian warships in photographs
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s only commanding officer, guided the boat in an attack on the Italian transport
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river in early July 1918 when she was spotted by the surfaced Italian submarine
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of the class, sank in July 1918 when she was torpedoed by the Italian submarine
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on 27 January 1917. The boats entered service between August and November 1917.
556: 447: 403: 359: 311: 53: 1206:(in Hungarian). Imperial and Royal Navy Association. p. 20. Archived from 430:, which was raised and salvaged in 1962, is on display in a military museum in 1641: 879: 329: 1275:(reprinted and translated into English by Sieche). Retrieved 2 February 2009. 723: 710: 1876: 1473: 1446: 1415: 1388: 1353: 979:; after first trying to ram the U-boat, the destroyer deployed an explosive 971: 658: 596: 583:
was the first sunk when she went down on 21 February 1918 from an explosive
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boats in 1915 because construction could start immediately, even though the
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2 × 45 cm (17.7 in) torpedo tubes (both in front); 2 torpedoes
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1,400 nautical miles (2,600 km) at 10 knots (19 km/h) surfaced
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departed on her final patrol on 20 February 1918. The following day,
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class did not claim any wartime successes, yet lost two of the boats—
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in 1962. Remains of her crewmen were interred on the grounds of the
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was accidentally rammed by the Austro-Hungarian Navy light cruiser
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U-boats Destroyed: The Effect of Anti-submarine Warfare, 1914–1918
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23 nautical miles (43 km) at 8 knots (15 km/h) submerged
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on 1 September and initially patrolled off the Italian towns of
886:. In port at Cattaro at war's end, she was ceded to France as a 73: 1603: 1485: 634: 609:. The remaining two boats were surrendered at war's end, with 983:. When the paravane came into contact with the submerged 675:, which required seven months of repairs for the U-boat. 2168: 2127: 2016: 1958: 1875: 1855: 1828: 1801: 1774: 1735: 1701: 1667: 1637: 1631:Austro-Hungarian Navy ship classes of World War I 1363:Conway's All the World's Fighting Ships 1906–1921 923:yard and was launched on 5 January 1917. She was 809:patrol was cut short by a leaky seal on her main 813:. After an additional eight months of repairs, 1458:. Annapolis, Maryland: Naval Institute Press. 1400:. Annapolis, Maryland: Naval Institute Press. 575:During their active service, the boats of the 1615: 1497: 1396:Gibson, R. H.; Prendergast, Maurice (2003) . 544:-class boats were designed for a crew of 18. 8: 1258: 1256: 1254: 683:on 20 October, and operated out of Pola and 559:. The first of the class to be launched was 507:, the lead ship of the class upon which the 369:because it was based upon the design of the 362:. The class is sometimes referred to as the 353: 1295: 1293: 829:did not have any successes during the war. 768:did not sink any ships during her service. 27:Austro-Hungarian Navy submarines during WWI 1622: 1608: 1600: 1504: 1490: 1482: 1330:Baumgartner, Lothar; Erwin Sieche (1999). 1283: 1281: 1195: 1193: 1191: 1189: 1187: 1185: 1087: 1085: 1083: 1081: 1079: 1077: 1075: 1073: 1071: 756:and a midship section were donated to the 1175: 1173: 1171: 1169: 1159: 1157: 1155: 1153: 1151: 1149: 1147: 1145: 1143: 1141: 1131: 1129: 1127: 1125: 1115: 1113: 1111: 1101: 1099: 1097: 1069: 1067: 1065: 1063: 1061: 1059: 1057: 1055: 1053: 1051: 970:then came under attack from the Italian 503:A cross section of the Danish submarine 1047: 1000: 350:Kaiserliche und Königliche Kriegsmarine 36: 1271:Baumgartner and Sieche, as excerpted 797:on 15 August 1917. In early October, 201:210 tonnes (231 short tons) submerged 7: 1719:Kronprinzessin Erzherzogin Stephanie 919:on 8 December 1915 at the Hungarian 446:'s U-boat fleet at the beginning of 211:127 ft 2 in (38.76 m) 198:173 tonnes (191 short tons) surfaced 1746:Kaiserin und Königin Maria Theresia 1398:The German Submarine War, 1914–1918 1234:"Austro-Hungarian Navy: Submarines" 1232:Smith, Gordon (15 September 2008). 458:, three of which had been built at 613:being ceded to Italy in 1920, and 25: 483:built at the Pola Navy Yard, and 1589:List of Austro-Hungarian U-boats 878:resumed service, patrolling the 821:was ceded to Italy in 1920 as a 687:. She was in the estuary of the 617:to France; both were broken up. 555:and an 8 mm (0.31 in) 266:9 knots (17 km/h) submerged 263:12 knots (22 km/h) surfaced 98: 40: 1287:Gibson and Prendergast, p. 279. 380:, three of which were built in 1456:A Naval History of World War I 1361:Gardiner, Robert, ed. (1985). 894:sank no ships during the war. 523:of 13 feet (4.0 m) and a 340:built for and operated by the 1: 1766:Monfalcone type large cruiser 1338:: Verlagsbuchhandlung Stöhr. 935:. After being transferred to 866:estuary and, later, northern 764:, where they are on display. 310:1 × 8 mm (0.31 in) 1026:. See: Gardiner, pp. 340–41. 1022:to replace their inadequate 758:Heeresgeschichtliches Museum 644:Heeresgeschichtliches Museum 251:, 160 shp (120 kW) 244:, 450 bhp (340 kW) 1669:Pre-dreadnought battleships 949:Klemens Ritter von Bézard, 850:was built at the Hungarian 2250: 1712:Kronprinz Erzherzog Rudolf 1423:Grant, Robert M. (2002) . 991:had no wartime successes. 904: 862:conducted patrols off the 839: 801:conducted patrols off the 778: 746:Theresian Military Academy 627: 496:modifications and delays. 29: 2188: 1584: 1558: 1522: 1454:Halpern, Paul G. (1994). 1306:U-Boat War in World War I 1018:were in drydock awaiting 907:SM U-23 (Austria-Hungary) 842:SM U-22 (Austria-Hungary) 805:coast, but a mid-October 781:SM U-21 (Austria-Hungary) 630:SM U-20 (Austria-Hungary) 177: 61: 39: 1302:"WWI U-boats: U KUK U23" 30:Not to be confused with 491:built at the Hungarian 470:Design and construction 219:13 ft (4.0 m) 178:General characteristics 52:loads a torpedo during 650: 512: 475:submarines each, with 354: 349: 304:1 × 66 mm/26 (2.6 in) 227:9 ft (2.7 m) 2234:U-20-class submarines 1812:Kaiser Franz Joseph I 1703:Coastal defense ships 1371:Naval Institute Press 1300:Helgason, Guðmundur. 1091:Gardiner, pp. 343–44. 946:Linienschiffsleutnant 638:The conning tower of 637: 502: 444:Austro-Hungarian Navy 342:Austro-Hungarian Navy 106:Austro-Hungarian Navy 32:German submarine U-20 2195:Single ship of class 18:U-20 class submarine 1367:Annapolis, Maryland 720: /  607:Tagliamento estuary 422:and broken up. The 355:K.u.K. Kriegsmarine 1803:Protected cruisers 1238:World War 1 at Sea 1213:on 11 October 2021 1201:"Tengeralattjárók" 964:Straits of Otranto 939:in late December, 661:of the class, was 651: 642:on display at the 589:Straits of Otranto 513: 2229:Submarine classes 2214: 2213: 1597: 1596: 1516:-class submarines 1465:978-0-87021-266-6 1438:978-1-904381-00-6 1407:978-1-59114-314-7 1380:978-0-87021-907-8 1345:978-3-901208-25-6 1163:Gardiner, p. 344. 1119:Gardiner, p. 341. 1105:Gardiner, p. 354. 922: 853: 724:45.483°N 13.033°E 494: 456:-class submarines 378:-class submarines 371:Royal Danish Navy 319: 318: 125:Succeeded by 82: 16:(Redirected from 2241: 1776:Torpedo cruisers 1737:Armored cruisers 1624: 1617: 1610: 1601: 1506: 1499: 1492: 1483: 1477: 1450: 1419: 1392: 1357: 1317: 1316: 1314: 1312: 1297: 1288: 1285: 1276: 1269: 1263: 1260: 1249: 1248: 1246: 1244: 1229: 1223: 1222: 1220: 1218: 1212: 1205: 1197: 1180: 1179:Halpern, p. 383. 1177: 1164: 1161: 1136: 1135:Halpern, p. 382. 1133: 1120: 1117: 1106: 1103: 1092: 1089: 1036: 1033: 1027: 1024:gasoline engines 1005: 955: 920: 851: 735: 734: 732: 731: 730: 725: 721: 718: 717: 716: 713: 511:class was based. 492: 357: 104: 102: 101: 80: 72:Pola Navy Yard, 44: 37: 21: 2249: 2248: 2244: 2243: 2242: 2240: 2239: 2238: 2219: 2218: 2215: 2210: 2184: 2164: 2123: 2012: 1954: 1871: 1851: 1824: 1797: 1770: 1731: 1697: 1663: 1633: 1628: 1598: 1593: 1580: 1554: 1518: 1510: 1480: 1466: 1453: 1439: 1422: 1408: 1395: 1381: 1360: 1346: 1329: 1325: 1320: 1310: 1308: 1299: 1298: 1291: 1286: 1279: 1270: 1266: 1261: 1252: 1242: 1240: 1231: 1230: 1226: 1216: 1214: 1210: 1203: 1199: 1198: 1183: 1178: 1167: 1162: 1139: 1134: 1123: 1118: 1109: 1104: 1095: 1090: 1049: 1045: 1040: 1039: 1034: 1030: 1006: 1002: 997: 953: 909: 903: 890:and broken up. 844: 838: 825:and broken up. 783: 777: 750:Wiener Neustadt 740:was raised and 736:. 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13.033 705:near position 628:Main article: 625: 619: 572: 569: 471: 468: 439: 436: 317: 316: 315: 314: 308: 302: 297: 293: 292: 289: 285: 284: 283: 282: 279: 274: 270: 269: 268: 267: 264: 259: 255: 254: 253: 252: 249:electric motor 245: 238: 233: 229: 228: 225: 221: 220: 217: 213: 212: 209: 205: 204: 203: 202: 199: 194: 190: 189: 184: 180: 179: 175: 174: 171: 167: 166: 163: 159: 158: 155: 151: 150: 147: 143: 142: 139: 135: 134: 126: 122: 121: 113: 109: 108: 95: 91: 90: 89: 88: 77: 68: 64: 63: 62:Class overview 59: 58: 45: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 2246: 2235: 2232: 2230: 2227: 2226: 2224: 2217: 2206: 2203: 2200: 2197: 2194: 2191: 2190: 2187: 2181: 2180: 2176: 2175: 2173: 2171: 2167: 2161: 2160: 2156: 2154: 2153: 2149: 2147: 2146: 2142: 2140: 2139: 2135: 2134: 2132: 2130: 2126: 2120: 2119: 2115: 2113: 2112: 2108: 2106: 2105: 2101: 2099: 2098: 2094: 2092: 2091: 2087: 2085: 2084: 2080: 2078: 2077: 2073: 2071: 2070: 2066: 2064: 2063: 2059: 2057: 2056: 2052: 2050: 2049: 2045: 2043: 2042: 2038: 2036: 2035: 2031: 2029: 2028: 2024: 2023: 2021: 2019: 2015: 2009: 2006: 2004: 2001: 1999: 1998: 1994: 1992: 1991: 1987: 1985: 1984: 1980: 1978: 1977: 1973: 1971: 1970: 1966: 1965: 1963: 1961: 1960:Torpedo boats 1957: 1951: 1950: 1946: 1944: 1943: 1939: 1937: 1936: 1932: 1930: 1929: 1925: 1923: 1922: 1918: 1916: 1915: 1911: 1909: 1908: 1904: 1902: 1901: 1897: 1895: 1894: 1890: 1888: 1887: 1883: 1882: 1880: 1878: 1874: 1868: 1867: 1863: 1862: 1860: 1858: 1854: 1848: 1847: 1843: 1841: 1840: 1839:Admiral Spaun 1836: 1835: 1833: 1831: 1827: 1821: 1820: 1816: 1814: 1813: 1809: 1808: 1806: 1804: 1800: 1794: 1793: 1789: 1787: 1786: 1782: 1781: 1779: 1777: 1773: 1767: 1764: 1762: 1761: 1757: 1755: 1754: 1750: 1748: 1747: 1743: 1742: 1740: 1738: 1734: 1728: 1727: 1723: 1721: 1720: 1716: 1714: 1713: 1709: 1708: 1706: 1704: 1700: 1694: 1693: 1689: 1687: 1686: 1682: 1680: 1679: 1675: 1674: 1672: 1670: 1666: 1660: 1659: 1655: 1653: 1652: 1648: 1647: 1645: 1643: 1640: 1636: 1632: 1625: 1620: 1618: 1613: 1611: 1606: 1605: 1602: 1590: 1587: 1586: 1583: 1577: 1575: 1571:Followed by: 1570: 1568: 1567: 1562:Preceded by: 1561: 1560: 1557: 1551: 1550: 1546: 1544: 1543: 1539: 1537: 1536: 1532: 1530: 1529: 1525: 1524: 1521: 1517: 1515: 1507: 1502: 1500: 1495: 1493: 1488: 1487: 1484: 1475: 1471: 1467: 1461: 1457: 1452: 1448: 1444: 1440: 1434: 1431:: Periscope. 1430: 1426: 1421: 1417: 1413: 1409: 1403: 1399: 1394: 1390: 1386: 1382: 1376: 1372: 1368: 1364: 1359: 1355: 1351: 1347: 1341: 1337: 1334:(in German). 1333: 1328: 1327: 1322: 1307: 1303: 1296: 1294: 1290: 1284: 1282: 1278: 1274: 1268: 1265: 1259: 1257: 1255: 1251: 1239: 1235: 1228: 1225: 1209: 1202: 1196: 1194: 1192: 1190: 1188: 1186: 1182: 1176: 1174: 1172: 1170: 1166: 1160: 1158: 1156: 1154: 1152: 1150: 1148: 1146: 1144: 1142: 1138: 1132: 1130: 1128: 1126: 1122: 1116: 1114: 1112: 1108: 1102: 1100: 1098: 1094: 1088: 1086: 1084: 1082: 1080: 1078: 1076: 1074: 1072: 1070: 1068: 1066: 1064: 1062: 1060: 1058: 1056: 1054: 1052: 1048: 1042: 1032: 1029: 1025: 1021: 1017: 1016: 1011: 1010: 1004: 1001: 994: 992: 990: 986: 982: 978: 977: 973: 969: 965: 961: 960: 952: 948: 947: 942: 938: 934: 930: 926: 918: 914: 908: 901: 897: 895: 893: 889: 885: 882:coast out of 881: 877: 873: 870:patrols from 869: 865: 861: 857: 849: 843: 836: 832: 830: 828: 824: 820: 816: 812: 808: 807:Mediterranean 804: 800: 796: 792: 788: 782: 775: 771: 769: 767: 763: 759: 755: 754:conning tower 751: 747: 743: 739: 733: 704: 700: 696: 695: 690: 686: 682: 678: 674: 673: 672:Admiral Spaun 668: 664: 660: 656: 649: 645: 641: 636: 631: 624: 620: 618: 616: 612: 608: 604: 603: 598: 594: 590: 586: 582: 578: 571:Class members 570: 568: 566: 562: 558: 554: 550: 545: 543: 539: 535: 530: 529:diesel engine 526: 522: 518: 510: 506: 501: 497: 490: 486: 482: 478: 469: 467: 465: 461: 457: 455: 449: 445: 437: 435: 433: 429: 425: 424:conning tower 421: 417: 413: 409: 405: 401: 396: 394: 390: 385: 383: 379: 377: 372: 368: 366: 361: 356: 351: 347: 343: 339: 335: 331: 327: 325: 313: 309: 307: 303: 300: 299: 298: 295: 294: 290: 287: 286: 280: 277: 276: 275: 272: 271: 265: 262: 261: 260: 257: 256: 250: 246: 243: 242:diesel engine 239: 236: 235: 234: 231: 230: 226: 223: 222: 218: 215: 214: 210: 207: 206: 200: 197: 196: 195: 192: 191: 188: 185: 182: 181: 176: 172: 169: 168: 164: 161: 160: 156: 153: 152: 148: 146:In commission 145: 144: 140: 137: 136: 133: 131: 127: 124: 123: 120: 119: 114: 111: 110: 107: 96: 93: 92: 86: 78: 75: 71: 70: 69: 66: 65: 60: 55: 51: 50: 43: 38: 33: 19: 2216: 2178: 2158: 2151: 2144: 2137: 2117: 2110: 2103: 2096: 2089: 2082: 2075: 2068: 2067: 2061: 2054: 2047: 2040: 2033: 2026: 1996: 1989: 1982: 1975: 1968: 1948: 1941: 1934: 1927: 1920: 1913: 1906: 1899: 1892: 1885: 1866:Ersatz Zenta 1865: 1845: 1838: 1818: 1811: 1791: 1784: 1759: 1752: 1745: 1725: 1718: 1711: 1691: 1684: 1677: 1657: 1650: 1573: 1565: 1548: 1541: 1534: 1527: 1513: 1512: 1455: 1424: 1397: 1362: 1331: 1323:Bibliography 1309:. 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Retrieved 1208:the original 1031: 1014: 1008: 1003: 988: 984: 975: 967: 958: 950: 944: 940: 925:commissioned 912: 910: 899: 891: 875: 859: 847: 845: 834: 826: 818: 814: 798: 795:commissioned 790: 786: 784: 773: 765: 737: 698: 693: 681:commissioned 676: 671: 666: 654: 652: 639: 622: 614: 610: 601: 592: 580: 576: 574: 564: 560: 548: 546: 541: 537: 533: 516: 514: 508: 504: 488: 484: 480: 476: 473: 453: 441: 427: 415: 411: 407: 397: 392: 388: 386: 375: 364: 363: 323: 322: 320: 193:Displacement 129: 117: 48: 2170:Auxiliaries 1760:Sankt Georg 1642:battleships 1639:Dreadnought 1243:10 November 880:Montenegrin 727: / 689:Tagliamento 557:machine gun 536:class, the 460:Whitehead's 448:World War I 404:machine gun 360:World War I 312:machine gun 112:Preceded by 54:World War I 2223:Categories 1935:Warasdiner 1877:Destroyers 1651:Tegetthoff 1311:2 February 1217:2 February 1043:References 438:Background 334:submarines 288:Complement 232:Propulsion 79:Hungarian 2201:Cancelled 972:destroyer 917:laid down 663:laid down 659:lead boat 597:lead boat 538:Havmanden 505:Havmanden 454:Havmanden 393:Havmanden 376:Havmanden 365:Havmanden 358:) during 237:1 × shaft 187:submarine 170:Preserved 154:Completed 149:1916–1918 141:1915–1917 94:Operators 2207:Captured 1969:Schichau 1914:Satellit 1692:Radetzky 1678:Habsburg 1564:SM  1474:28411665 1447:50215640 1429:Penzance 1416:52924732 1389:12119866 1354:43596931 981:paravane 868:Adriatic 864:Po River 803:Albanian 742:salvaged 585:paravane 553:deck gun 402:, and a 400:deck gun 373:'s 1911 332:of four 306:deck gun 296:Armament 116:SM  67:Builders 47:SM  2018:U-boats 1907:Trabant 1785:Panther 1726:Monarch 962:in the 937:Cattaro 884:Cattaro 872:Trieste 715:13°02′E 712:45°29′N 703:Trieste 685:Trieste 605:in the 587:in the 338:U-boats 1997:Kaiman 1983:Natter 1928:Huszár 1921:Magnet 1900:Planet 1886:Meteor 1846:Novara 1472:  1462:  1445:  1435:  1414:  1404:  1387:  1377:  1352:  1342:  976:Airone 933:Ancona 929:Rimini 762:Vienna 752:. The 657:, the 648:Vienna 595:, the 432:Vienna 346:German 328:was a 208:Length 103:  83:yard, 2145:Temes 2138:Körös 2118:U-107 2111:U-101 1990:Cobra 1976:Viper 1942:Tátra 1893:Blitz 1819:Zenta 1792:Tiger 1576:class 1211:(PDF) 1204:(PDF) 995:Notes 959:Memfi 954:' 856:Fiume 811:hatch 525:draft 464:Fiume 426:from 382:Fiume 367:class 330:class 326:class 273:Range 258:Speed 224:Draft 138:Built 132:class 85:Fiume 2179:Pola 2159:Sava 2152:Enns 2104:U-52 2097:U-50 2090:U-48 2083:U-43 2076:U-27 2069:U-20 2062:U-14 2055:U-10 2008:250t 2003:110t 1574:U-27 1566:U-14 1549:U-23 1542:U-22 1535:U-21 1528:U-20 1514:U-20 1470:OCLC 1460:ISBN 1443:OCLC 1433:ISBN 1412:OCLC 1402:ISBN 1385:OCLC 1375:ISBN 1350:OCLC 1340:ISBN 1336:Wien 1313:2009 1273:here 1245:2008 1219:2009 1012:and 989:U-23 985:U-23 968:U-23 951:U-23 941:U-23 931:and 921:UBAG 915:was 913:U-23 900:U-23 892:U-22 876:U-22 860:U-22 852:UBAG 848:U-22 835:U-22 827:U-21 819:U-21 815:U-21 799:U-21 791:U-21 787:U-21 774:U-21 766:U-20 738:U-20 699:U-20 679:was 677:U-20 667:U-20 655:U-20 640:U-20 623:U-20 615:U-22 611:U-21 593:U-20 581:U-23 577:U-20 565:U-22 561:U-21 549:U-20 547:The 542:U-20 534:U-20 521:beam 517:U-20 515:The 509:U-20 493:UBAG 489:U-23 487:and 485:U-22 481:U-21 479:and 477:U-20 442:The 428:U-20 416:U-23 414:and 412:U-20 408:U-20 389:U-20 324:U-20 321:The 247:1 × 240:1 × 216:Beam 183:Type 162:Lost 130:U-27 118:U-14 81:UBAG 74:Pola 49:U-21 2048:U-7 2041:U-5 2034:U-3 2027:U-1 1015:U-2 1009:U-1 911:SM 898:SM 846:SM 833:SM 785:SM 772:SM 760:in 748:at 694:F12 653:SM 646:in 621:SM 602:F12 462:in 352:or 336:or 87:(2) 76:(2) 2225:: 1468:. 1441:. 1427:. 1410:. 1383:. 1373:. 1369:: 1365:. 1348:. 1304:. 1292:^ 1280:^ 1253:^ 1236:. 1184:^ 1168:^ 1140:^ 1124:^ 1110:^ 1096:^ 1050:^ 966:. 697:. 591:. 434:. 384:. 348:: 291:18 2204:C 2198:X 2192:S 1623:e 1616:t 1609:v 1505:e 1498:t 1491:v 1476:. 1449:. 1418:. 1391:. 1356:. 1315:. 1247:. 1221:. 344:( 173:0 165:2 157:4 56:. 34:. 20:)

Index

U-20 class submarine
German submarine U-20
SM U-21 loads a torpedo during World War I.
SM U-21
World War I
Pola
Fiume
Austro-Hungarian Navy
SM U-14
U-27 class
submarine
diesel engine
electric motor
deck gun
machine gun
class
submarines
U-boats
Austro-Hungarian Navy
German
World War I
Royal Danish Navy
Havmanden-class submarines
Fiume
deck gun
machine gun
war reparations
conning tower
Vienna
Austro-Hungarian Navy

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