UJ175 1941
| Name | No | Builder | Laid down | Launched | Comp | Fate |
| Mob-FD1 Saturn | 13, 6/1943- NN12, 5/1944- V6308 | Vulcan, Stettin | 1940 | 12/1940 | surrendered 5/1945, GMSA 9/1945, to Soviet Union 1947 | |
| Mob-FD2 Jupiter | 24, 6/1943- NN11, 5/1944- V6307 | Vulcan, Stettin | 1940 | 10/1940 | sunk 17/7/1944 | |
| Mob-FD3 Mars | 31, 11/1941- UJ1214 | Vulcan, Stettin | 10/12/1940 | 12/1941 | sunk 4/10/1943 | |
| Mob-FD4 | UJ1406 | Vulcan, Stettin | 1941 | 3/1942 | sunk 15/1/1943 | |
| Mob-FD5 | UJ130, 8/1941- UJ1206 | Ottensener Eisenwerke, Hamburg | 4/1/1941 | 7/1941 | surrendered 5/1945, sold 8/1945 | |
| Mob-FD6 | UJ1110 | Ottensener Eisenwerke, Hamburg | 9/6/1941 | 11/1941 | sunk 9/7/1942 | |
| Mob-FD31 (ex-Najade) | UJ175 | Unterweser-AG, Bremerhaven | 23/7/1940 | 10/1940 | sunk 7/1/1941 | |
| Mob-FD32 | UJ173 | Unterweser-AG, Bremerhaven | 1/10/1940 | 12/1940 | sunk 8/5/1941 | |
| Mob-FD33 | UJ126, 8/1941- UJ1201 | Unterweser-AG, Bremerhaven | 30/11/1940 | 2/1941 | surrendered 5/1945, sold mercantile | |
| Mob-FD34 | V415, 10/1943- V814 | Unterweser-AG, Bremerhaven | 1/3/1941 | 8/1941 | surrendered 5/1945, to USA 1945 | |
| Mob-FD35 | UJ120, 8/1941- UJ1405 | Unterweser-AG, Bremerhaven | 24/5/1941 | 8/1941 | sunk 8/1944 | |
| Mob-FD36 | UJ1111 | Unterweser-AG, Bremerhaven | 22/9/1941 | 12/1941 | sunk 20/10/1944 | |
| Mob-FD61 | UJ175, 8/1941- UJ1705 | Werft Nobiskrug, Rendsburg | 12/10/1940 | 4/1941 | sunk 17/7/1943 | |
| Mob-FD62 | UJ172, 8/1941- UJ1702 | Werft Nobiskrug, Rendsburg | 4/12/1940 | 5/1941 | sunk 1/2/1944 | |
| Mob-FD63 | UJ173, 8/1941- UJ1703 | Werft Nobiskrug, Rendsburg | 30/4/1941 | 8/1941 | sunk 5/3/1944 | |
| Mob-FD64 | UJ1207 | Werft Nobiskrug, Rendsburg | 3/7/1941 | 1/1942 | surrendered 5/1945, to USA 1945 | |
| Mob-FD65 (ex-Vierlande) | UJ1712 | Werft Nobiskrug, Rendsburg | 11/11/1941 | 5/1942 | surrendered 5/1945, sold 9/1945 | |
| Mob-FD81 | UJ129, 8/1941- UJ1205 | Jos. L. Meyer, Papenburg | 28/3/1941 | 8/1941 | collision 1/12/1942 | |
| Mob-FD82 | UJ117 | Jos. L. Meyer, Papenburg | 4/4/1941 | 8/1941 | sunk 30/9/1941 | |
| Mob-FD83 | UJ1407 | Jos. L. Meyer, Papenburg | 7/8/1941 | 11/1941 | lost 4/1944 | |
| Mob-FD84 | UJ1408 | Jos. L. Meyer, Papenburg | 6/12/1941 | 4/1942 | sunk 30/6/1944 |
|
Displacement standard, t |
|
|
Displacement full, t |
Mob-FD1 - 3: 869 Mob-FD4 - 6, 31 - 36, 61 - 65: 885 Mob-FD81 - 84: 835 |
|
Length, m |
Mob-FD1 - 3: 53.4 wl 57.8 oa Mob-FD4 - 6, 31 - 36, 61 - 65, 81 - 84: 52.0 wl 58.9 oa |
|
Breadth, m |
8.40 |
|
Draught, m |
Mob-FD1 - 3: 4.03 Mob-FD4 - 6, 31 - 36, 61 - 65: 3.80 Mob-FD81 - 84: 4.00 |
|
No of shafts |
1 |
|
Machinery |
VTE with exhaust steam turbine, 1 fire-tube boiler |
|
Power, h. p. |
Mob-FD1 - 3, 81 - 84: 700 Mob-FD4 - 6, 31 - 36, 61 - 65: 800 |
|
Max speed, kts |
Mob-FD1 - 6, 31 - 36, 61 - 65: 11 Mob-FD81 - 84: 10 |
|
Fuel, t |
Mob-FD1 - 4, 31 - 36, 61 - 65: coal 198 Mob-FD5, 6: oil 230 Mob-FD81 - 84: coal 190 |
|
Endurance, nm(kts) |
5500(12) Mob-FD81 - 84: 3600(12) |
|
Armament |
Mob-FD1 - 3: 1 x 1 - 88/45 SK C/35, 1 x 1 - 20/65 C/38, 4 x 1 - 533 TT, 2 DCR (30) Mob-FD4 - 6, 31 - 36, 61 - 65, 81 - 84: 1 x 1 - 88/45 SK C/30, 1 x 1 - 20/65 C/38, 1 x 1 - 13/94, 4 DCT (76) |
| Complement |
70 |
Ship project history: Special project of patrol ship / submarine chaser based on design of trawler Uhlenhorst of Norderwerft with enhanced compartment division, strengthened stem and stern and double bottom at about half of length.
Modernizations: Mob-FD1 - 3, 1941: - 4 x 1 - 533 TT, 2 DCR; + 1 x 1 - 13/94, 4 DCT (76 DC).
all survived, 1943: - 1 x 1 - 13/94; + 1 x 1 - 37/83 SK C/30, 1 x 4 - 20/65 C/38, 4 x 1 - 20/65 C/38
Naval service: V6308 (Mob-FD1) was badly damaged by Allied aircraft 22/10/11944 off Sylte Fjord but transferred to GMSA 9/1945 and later transferred to the USSR. V6307 (Mob-FD2) was sunk by Allied aircraft 17/7/1944 off Loppen. UJ1214 (Mob-FD3) was mined 4/10/1943 in Bussesund. UJ1406 (Mob-FD4) was bombed by Allied aircraft 15/1/1943 at Lorient. UJ1110 (Mob-FD6) was mined 9/7/1942 off Hammerfest. UJ175 (Mob-FD32) was mined 7/1/1941 S off Feiestein. UJ1201 (Mob-FD33) was sunk by torpedo 26/9/1941 from British submarine Tigris W of Nordkap, aft part of ship was towed to Rostock and 29/4/1944 ship was commissioned again. UJ1405 (Mob-FD35) was sunk in 1944 at St. Nazaire by Allied aircraft. UJ1111 (Mob-FD36) was torpedoed by British submarine Sceptre 20/10/1944 NW Egersund. UJ1705 (Mob-FD61) was sunk by British aircraft 17/7/1943 SW off Bergen. UJ1702 (Mob-FD62) was sunk 1/2/1944 by British aircraft W off Stadlandet. UJ1703 (Mob-FD63) was sunk by Allied air torpedo 5/3/1944 off Lindesnes. UJ1205 (Mob-FD81) sunk after collision with minesweeper M29 1/12/1942 off Suursaaki. UJ117 (Mob-FD82) was mined off Hangö 30/9/1941. UJ1407 (Mob-FD83) was lost by unknown cause after April, 1944, salvaged by Italians. UJ1408 (Mob-FD84) was sunk by Allied aircraft 30/6/1944 off Concarneau.
© Ivan Gogin, 2008-10