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FIGHTING SHIPS OF THE WORLD
GERMANY
SUBMARINES
U3 submarines (1909)
Ships
| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
|---|---|---|---|---|---|---|---|
| U3 | 2 | KW Danzig | 1907 | 27.3.1909 | 5.1909 | to United Kingdom 1.12.1918 | |
| U4 | 3 | KW Danzig | 1907 | 18.5.1909 | 7.1909 | discarded 1.1919 |
Technical data
| Displacement standard, t |
|
|---|---|
| Displacement normal, t | 421 / 510 |
| Length, m | 51.3 |
| Breadth, m | 5.60 |
| Draught, m | 3.05 |
| No of shafts | 2 |
| Machinery | 2 Körting petrol engines / 2 SSW electric motors |
| Power, h. p. | 600 / 1030 |
| Max speed, kts | 11.8 / 9.4 |
| Fuel, t | petrol 48 |
| Endurance, nm(kts) | 1800(12) / 55(4.5) |
| Armament | 1 x 1 - 7.9/79, 4 - 450 TT (2 bow, 2 stern, 6) |
| Complement | 22 |
| Diving depth operational, m | 30 |
Project history
Known as Project 12 these two boats were built at Danzig N Yd. Double-hulled.
Modernizations
by late 1914, both: - 1 x 1 - 7.9/79; + 1 x 5 - 37/27 RV L/30
1915, both: - 1 x 5 - 37/17; + 1 x 1 - 50/37 SK L/40 C/92
Naval service
U3 served for trials, was raised after a diving accident 17.11.1911 and sunk during the transfer tow to England in 1918. U4 was broken up after the war.
