B1 1940
| Name | No | Yard 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 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, kts 14.5 / 10.5 Fuel, t diesel oil Armament 1 x 1 - 76/28
Bofors, 4 - 450 TT (bow, 6) Complement 23
420
Endurance, nm(kts)
2900(9) / 150(3)
Diving depth operational, m
60
Project history: Single-hulled submarines of Holland type, built in Norway under US design. To the Second World War beginning they have become outdated.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 at 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 at Tromsö 9.6.1940 to avoid capture.
© Ivan Gogin, 2010-14