U66 1941
| Name | Yard No | Builder | Laid down | Launched | Comp | Fate |
| U66 | 985 | Deschimag, Bremen | 3.1940 | 10.10.1940 | 1.1941 | sunk 6.5.1944 |
| U67 | 986 | Deschimag, Bremen | 4.1940 | 30.10.1940 | 1.1941 | sunk 16.7.1943 |
| U68 | 987 | Deschimag, Bremen | 8.1940 | 22.10.1940 | 2.1941 | sunk 10.4.1944 |
| U125 | 988 | Deschimag, Bremen | 5.1940 | 10.12.1940 | 3/1941 | sunk 6.5.1943 |
| U126 | 989 | Deschimag, Bremen | 6.1940 | 31.12.1940 | 3/1941 | sunk 3.7.1943 |
| U127 | 990 | Deschimag, Bremen | 6.1940 | 4.2.1941 | 4/1941 | sunk 15.12.1941 |
| U128 | 991 | Deschimag, Bremen | 7.1940 | 20.2.1941 | 5/1941 | sunk 17.5.1943 |
| U129 | 992 | Deschimag, Bremen | 7.1940 | 28.2.1941 | 5/1941 | scuttled 18.8.1944 |
| U130 | 993 | Deschimag, Bremen | 8.1940 | 14.3.1941 | 6/1941 | sunk 12.3.1943 |
| U131 | 994 | Deschimag, Bremen | 9.1940 | 1.4.1941 | 7/1941 | sunk 17.12.1942 |
| U153 | 995 | Deschimag, Bremen | 9.1940 | 5.4.1941 | 7/1941 | sunk 13.7.1942 |
| U154 | 996 | Deschimag, Bremen | 9.1940 | 21.4.1941 | 8/1941 | sunk 3.7.1944 |
| U155 | 997 | Deschimag, Bremen | 10.1940 | 12.5.1941 | 8/1941 | surrendered 5.1945, scuttled 21.12.1945 |
| U156 | 998 | Deschimag, Bremen | 10.1940 | 21.5.1941 | 9/1941 | sunk 8.3.1943 |
| U157 | 999 | Deschimag, Bremen | 10.1940 | 5.6.1941 | 9/1941 | sunk 13.6.1942 |
| U158 | 1000 | Deschimag, Bremen | 11.1940 | 21.6.1941 | 9/1941 | sunk 30.6.1942 |
| U159 | 1009 | Deschimag, Bremen | 11.1940 | 1.7.1941 | 10/1941 | sunk 28.7.1943 |
| U160 | 1010 | Deschimag, Bremen | 11.1940 | 12.7.1941 | 10/1941 | sunk 14.7.1943 |
| U161 | 700 | Deschimag, Seebeck | 3.1940 | 1.3.1941 | 7/1941 | sunk 27.9.1943 |
| U162 | 701 | Deschimag, Seebeck | 4.1940 | 1.3.1941 | 9/1941 | sunk 3.9.1942 |
| U163 | 702 | Deschimag, Seebeck | 5.1940 | 1.5.1941 | 10/1941 | sunk 13.3.1943 |
| U164 | 703 | Deschimag, Seebeck | 6.1940 | 1.5.1941 | 11/1941 | sunk 6.1.1943 |
| U165 | 704 | Deschimag, Seebeck | 8.1940 | 15.8.1941 | 2/1942 | sunk 27.9.1942 |
| U166 | 705 | Deschimag, Seebeck | 12.1940 | 1.11.1941 | 3/1942 | sunk 1.8.1942 |
| U171 | 1011 | Deschimag, Bremen | 12.1940 | 22.7.1941 | 10/1941 | sunk 9.10.1942 |
| U172 | 1012 | Deschimag, Bremen | 12.1940 | 5.8.1941 | 11/1941 | sunk 13.12.1943 |
| U173 | 1013 | Deschimag, Bremen | 12.1940 | 11.8.1941 | 11/1941 | sunk 16.11.1942 |
| U174 | 1014 | Deschimag, Bremen | 1.1941 | 21.8.1941 | 11/1941 | sunk 27.4.1943 |
| U175 | 1015 | Deschimag, Bremen | 1.1941 | 2.9.1941 | 12/1941 | sunk 17.4.1943 |
| U176 | 1016 | Deschimag, Bremen | 2.1941 | 12.9.1941 | 12/1941 | sunk 15.5.1943 |
| U501 | 291 | Deutsche Werft, Hamburg | 2.1940 | 25.1.1941 | 4/1941 | sunk 10.9.1941 |
| U502 | 292 | Deutsche Werft, Hamburg | 4.1940 | 18.2.1941 | 5/1941 | sunk 5.7.1942 |
| U503 | 293 | Deutsche Werft, Hamburg | 4.1940 | 5.4.1941 | 7/1941 | sunk 15.3.1942 |
| U504 | 294 | Deutsche Werft, Hamburg | 4.1940 | 24.4.1941 | 7/1941 | sunk 30.7.1943 |
| U505 | 295 | Deutsche Werft, Hamburg | 6.1940 | 24.5.1941 | 8/1941 | captured by USA 4.6.1944 (Nemo) |
| U506 | 296 | Deutsche Werft, Hamburg | 7.1940 | 20.6.1941 | 9/1941 | sunk 12.7.1943 |
| U507 | 303 | Deutsche Werft, Hamburg | 9.1940 | 15.7.1941 | 10/1941 | sunk 13.1.1943 |
| U508 | 304 | Deutsche Werft, Hamburg | 9.1940 | 30.7.1941 | 10/1941 | sunk 12.11.1943 |
| U509 | 305 | Deutsche Werft, Hamburg | 11.1940 | 19.8.1941 | 11/1941 | sunk 15.7.1943 |
| U510 | 306 | Deutsche Werft, Hamburg | 11.1940 | 4.9.1941 | 11/1941 | surrendered 5.1945, to France 5.1945 (Bouan) |
| U511 | 307 | Deutsche Werft, Hamburg | 1.1941 | 22.9.1941 | 12/1941 | to Japan .9.1943 (呂500 [RO500]) |
| U512 | 308 | Deutsche Werft, Hamburg | 2.1941 | 9.10.1941 | 12/1941 | sunk 2.10.1942 |
| U513 | 309 | Deutsche Werft, Hamburg | 4.1941 | 29.10.1941 | 1/1942 | sunk 19.7.1943 |
| U514 | 310 | Deutsche Werft, Hamburg | 4.1941 | 18.11.1941 | 1/1942 | sunk 8.7.1943 |
| U515 | 311 | Deutsche Werft, Hamburg | 5.1941 | 2.12.1941 | 2/1942 | sunk 9.4.1944 |
| U516 | 312 | Deutsche Werft, Hamburg | 5.1941 | 16.12.1941 | 3/1942 | surrendered 14.5.1945, scuttled 3.1.1946 |
| U517 | 313 | Deutsche Werft, Hamburg | 6.1941 | 30.12.1941 | 3/1942 | sunk 21.11.1942 |
| U518 | 314 | Deutsche Werft, Hamburg | 6.1941 | 11.2.1942 | 4/1942 | sunk 22.4.1945 |
| U519 | 315 | Deutsche Werft, Hamburg | 6.1941 | 12.2.1942 | 5/1942 | sunk 10.2.1943 |
| U520 | 316 | Deutsche Werft, Hamburg | 7.1941 | 2.3.1942 | 5/1942 | sunk 30.10.1942 |
| U521 | 317 | Deutsche Werft, Hamburg | 7.1941 | 17.3.1942 | 6/1942 | sunk 2.6.1942 |
| U522 | 318 | Deutsche Werft, Hamburg | 7.1941 | 1.4.1942 | 6/1942 | sunk 23.2.1943 |
| U523 | 319 | Deutsche Werft, Hamburg | 8.1941 | 15.4.1942 | 6/1942 | sunk 25.8.1943 |
| U524 | 320 | Deutsche Werft, Hamburg | 8.1941 | 30.4.1942 | 7/1942 | sunk 22.3.1943 |
|
Displacement standard, t |
|
|
Displacement normal, t |
1120 / 1232 |
|
Length, m |
76.8 |
|
Breadth, m |
6.76 |
|
Draught, m |
4.70 |
|
No of shafts |
2 |
|
Machinery |
2 MAN diesels / 2 SSW electric motors |
|
Power, h. p. |
4400 / 1000 |
|
Max speed, kts |
18.2 / 7.3 |
|
Fuel, t |
diesel oil 208 |
|
Endurance, nm(kts) |
13450(10) / 63(4) |
|
Armament |
1 x 1 - 105/42 SK C/32, 1 x 1 - 37/80 SK C/30, 1 x 1 - 20/65 C/38, 6 - 533 TT (4 bow, 2 stern, 22 or 66 mines) U162 - 166, 505 - 524: 1 x 1 - 105/42 SK C/32, 1 x 1 - 37/80 SK C/30, 1 x 1 - 20/65 C/38, 6 - 533 TT (4 bow, 2 stern, 22) |
|
Electronic equipment |
U66-68, 125-131, 153-155, 159-166, 171-176: S-Gerät sonar, GHG hydrophone U156-158, 501-524: FuMO 29 radar, S-Gerät sonar, GHG hydrophone |
|
Complement |
48 |
|
Diving depth operational, m |
100 |
Project history: Oceangoing submarines for operations in far areas. The design was developed on the basis of U81-86 submarine cruisers of the period of the First World War with application of decisions included in the I series. Double-hulled, maximal diving depth was 200m, minimal diving time was 35sec. At the same time, the big dimensions done these submarines less mobile and manoeuvrable and fast in submerged position.
Series IXC had even more increased dimensions and other arrangement of oil fuel tanks. Advanced IXC/40 series had improved electronic equipment, and on last boats of this subgroup the deck sheathing was sheared for diving time reduction. In total 134 IXC/40 series submarines were ordered, but in the mid-1943, in connection with moral obsolescence of the project and reaming of mass building of XXI series, part of orders was cancelled.
All boats of a series were distinguished by presence of three periscopes. Instead of torpedoes 44 TMA or 66 TMB mines could be carried. Strengthening of antiaircraft armament has begun from late 1942. 37mm gun was transferred from a deck to a special platform ("Wintergarten") behind CT (under which two additional spare torpedoes were stored), instead of 1 single 20mm MG 2 single or twin such MGs were installed, 105mm gun was removed. From the second half of 1943 submarines received snorkel.
Modernizations: 1941-1942, most survived early built: + FuMO 29 radar
1942-1943, most survived: + FuMB 1 Metox ECM suite
1943 - 1944, most survived were rearmed with artillery consisted of 1 x 1 - 37/69 FlaK M/42, 1 x 4 - 20/65 C/38 or 2 x 2 - 20/65 C/38 or 2 x 1 - 20/65 C/38
1943-1944, most survived: - S-Gerät sonar, FuMB 1 Metox ECM suite; + FuMB 3 Bali, FuMB 6 Palau ECM suites
1944-1945, some survived: - FuMO 29 radar; + FuMO 61 radar
Naval service: During operations 150 of 194 commissioned IX series submarines were lost.
U66 was sunk 6.5.1944 by American destroyer escort Buckley and Avenger of VC-55 sqn from escort carrier Block Island W off Cape Verde. U67 was sunk 16.7.1943 by Avenger from American escort carrier Core in the Central Atlantic, E off Bermuda. U68 was sunk 10.4.1944 by Avengers and Wildcats from American escort carrier Guadalcanal in the Central Atlantic, NW off Madeira.
U125 was sunk 6.5.1943 by British destroyer Oribi and corvette Snowflake NE off Newfoundland. U126 was sunk 3.7.1943 by Wellington of 172nd RAF sqn NW off Cape Ortegal, Spain. U127 was sunk 15.12.1941 by Australian destroyer Nestor W off Gibraltar. U128 16.5.1943 was damaged by Mariners of VP-72 USN sqn off Recife (Brazil) and at approach off American destroyers Moffett and Jouett scuttled by crew. U129 was stricken in August, 1944; on reparations she was transferred to France and broken up. U130 was sunk 12.3.1943 by American destroyer Champlin W off Azores. U131 was sunk 17.12.1941 by British escort destroyers Exmoor, Blankney, destroyer Stanley, corvette Pentstemon, sloop Stork and Martlet fighter of 802nd FAA sqn (escort carrier Audacity) in the Central Atlantic, NE off Madeira.
U153 was sunk 13.7.1943 by American destroyer Lansdowne in Caribbean sea at approaches to Panama canal. U154 was sunk 3.7.1944 by American escort destroyers Inch and Frost in the central Atlantic NW off Madeira. U156 was sunk 8.3.43 by Catalina of VP-53 USN sqn E off Barbados. U157 was sunk 13.6.1942 by American Coast Guard cutter Thetis NE off Havana (Cuba). U158 was sunk 30.6.1942 by Mariner of USN VP-74 sqn W off Bermuda. U159 was sunk 28.7.1943 by Mariner of VP-32 USN sqn NE off Haiti. U160 was sunk 14.7.1943 by Avengers and Wildcats from American escort carrier Santee S off Azores. U161 was sunk 27.9.1943 by Mariner of VP-74 USN sqn at coast of Brazil off Salvador. U162 was sunk 3.9.1942 by British destroyers Vimy, Pathfinder and Quentin NE off Trinidad. U163 was sunk 13.3.1943 by Canadian corvette Prescott in Northern Atlantic NW off Cape Finisterre. U164 was sunk 6.1.1943 by Catalina of VP-83 USN sqn at coast of Brazil off Fortaleza. U165 was lost, presumably, 27.9.1942 on British aviation mine at Lorient. U166 was sunk 1.8.1942 by Widgeon of 212th USCG sqn S off New Orleans. U171 was lost 9.10.1942 on British aviation mine at Lorient. U172 was sunk 13.12.1943 by American destroyers George E. Badger, Clemson, Osmond Ingram, Dupont and Avenger of VC-19 sqn from escort carrier Bogue SW off Canary islands. U173 was sunk 16.11.1942 by American destroyers Woolsey, Swanson, Quick W off Casablanca. U174 was sunk 27.4.1943 by Ventura of VP-125 USN sqn E off Newfoundland. U175 was sunk 17.4.1943 by American Coast Guard cutter Thetis in Northern Atlantic W off Brest. U176 was sunk 15.5.1943 by Cuban submarine chaser CS13 and Kingfisher of USN VP-62 sqn E off Havana (Cuba).
U501 was sunk 10.9.1941 by Canadian corvettes Chambly and Moosejaw at Angmagsalik, Greenland. U502 was sunk 6.7.1942 by Wellington of 172nd RAF sqn in Bay at Biscay at La Rochelle. U503 was sunk 15.3.1942 by Hudson of USN VP-82 sqn in Northern Atlantic SE off Newfoundland. U504 was sunk 30.7.1943 by British sloops Kite, Wild Goose, Wren and Woodpecker in Northern Atlantic NW off Cape Finisterre. U505 4.6.1944 was damaged by American escort destroyer Chatelain and air group of escort carrier Guadalcanal NW off Dakar, captured by American escort destroyer Pillsbury and commissioned by USN as Nemo; since 1955 she is used as a museum. U506 was sunk 12.7.1943 by Liberator of 1st USAF ASW sqn W off Vigo. U507 was sunk 13.1.1943 by Catalina of USN VP-83 sqn at coast of Brazil NW off Fortaleza. U508 was sunk 12.11.1943 by Liberator of USN VP-103 sqn in the Bay of Biscay. U509 was sunk 15.7.1943 by Avengers and Wildcats from American escort carrier Santee SE off Azores. U510 was transferred on reparations to France as Bouan, BU in 1959. U511 was stricken 16.9.1943 and transferred at Kure to IJN as RO500, surrendered in August 1945 and 30.4.1946 was scuttled by Americans off Maizuru. U512 was sunk 2.10.1942 by Digby of 99th USAF sqn at coast of Surinam. U513 was sunk 19.7.1943 by Mariner of USN VP74 sqn at coast of Brazil NE off Rio de Janeiro. U514 was sunk 8.7.1943 by Liberator of 224th RAF sqn in the Bay of Biscay. U515 was sunk 9.4.1944 by American escort destroyers Pope, Pillsbury, Flaherty, Chatelain and Avengers of USN VC-58 sqn from escort carrier Guadalcanal in the Central Atlantic NE off Madeira. U517 was sunk 21.11.1942 by Albacore of 817th FAA sqn from aircraft carrier Victorious SW off Ireland. U518 was sunk 22.4.1945 by American escort destroyers Carter and Neal A. Scott NW off Azores. U519 after 30.1.1943 was lost in the Bay of Biscay. U520 was sunk 30.10.1942 by Digby of 10th RCAF sqn E off Newfoundland. U521 was sunk 2.6.1943 by American patrol craft PC565 at US coast NE off Norfolk. U522 was sunk 23.2.1943 by British sloop Totland S off Azores. U523 was sunk 25.8.1943 by British corvette Wallflower and destroyer Wanderer W off Vigo. U524 was sunk 22.3.1943 by Liberator of 1st USAF ASW sqn in the Central Atlantic S off Madeira.
U155 and U516 surrendered and were scuttled by Allies during operation "Deadlight".
© Ivan Gogin, 2008-14