B1 1940
| Name | No | Builder | Laid down | Launched | Comp | Fate |
| B1 | MV Horten | 1915 | 1/8/1922 | 1923 | sold 1946 | |
| B2 | MV Horten | 15/8/1923 | 1924 | captured by Germany 9/4/1940, BU | ||
| B3 | MV Horten | 25/1/1924 | 1926 | scuttled 9/4/1940 | ||
| B4 | MV Horten | 19/12/1923 | 1927 | captured by Germany 9/4/1940, BU | ||
| B5 | MV Horten | 1925 | 17/6/1929 | 10/1929 | captured by Germany 9/4/1940 (UC1) | |
| B6 | MV Horten | 1925 | 4/9/1929 | 5/1930 | captured by Germany 9/4/1940 (UC2) |
|
Displacement standard, t |
420 |
|
Displacement normal, t |
/ 545 |
|
Length, m |
51.0 |
|
Breadth, m |
5.33 |
|
Draught, m |
3.50 |
|
No of shafts |
2 |
|
Machinery |
2 Sulzer diesels / 2 electric motors |
|
Power, h. p. |
900 / 700 |
|
Max speed, kn |
14.5 / 10.5 |
|
Fuel, t |
diesel oil |
|
Armament |
1 x 1 - 76/28 Bofors, 4 - 450 TT (bow, 6) |
|
Complement |
23 |
| Diving depth operational, m | 60 |
Ship project history: Single-hulled submarines of Holland type, built in Norway under American project. To the Second World War beginning they have become outdated.
Modernizations: None.
Naval service: B1 in July, 1940 has left to England where it was used as training till July, 1944. B2, B4, B5 and B6 were captured by German troops in Kristiansand (B2 and B5), Horten (B4) and Florö, the Sunn-fjord (B6) in period from 9/4 till 18/5/1940 First two were broken up, and B5 and B6 after repair were commissioned by Kriegsmarine as UC1 and UC2 in November, 1940 and November, 1941, respectively. They used for training, UC1 was broken up and UC2 scuttled 3/5/1945. B3 was scuttled by crew in Tromsö 9/6/1940 to avoid capture.
© Ivan Gogin, 2010