Krokodil 1912
| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| Дракон [Drakon] | 1731 | Crichton Yd, St. Petersburg | 11.1905 | 27.6.1908 | 11.1910 | captured by Germany 25.2.1918 | |
| Кайман [Kayman] | 1732 | Crichton Yd, St. Petersburg | 9.1905 | 11.12.1907 | 12.1909 | captured by Germany 25.2.1918 | |
| Крокодил [Krokodil] | 1733 | Crichton Yd, St. Petersburg | 12.1905 | 23.7.1908 | 12.1909 | captured by Germany 25.2.1918 | |
| Аллигатор [Alligator] | 1734 | Crichton Yd, St. Petersburg | 10.1905 | 16.5.1908 | 12.1909 | stricken 9.1924 |
|
Displacement standard, t |
|
|
Displacement normal, t |
409 / 480 - 482 |
|
Length, m |
40.7 - 40.8 |
|
Breadth, m |
3.85 |
|
Draught, m |
4.88 |
|
No of shafts |
2 |
|
Machinery |
2 gasoline engines / 2 electric motors |
|
Power, h. p. |
1200 / 200 |
|
Max speed, kts |
10.7 / 7 - 8.8 |
|
Fuel, t |
gasoline 15 |
| Endurance, nm(kts) | 750 - 950(5 - 6.5) / 40 - 60(4 - 5) |
|
Armament |
4 - 450 TT (2 bow, 2 stern, 4) |
|
Complement |
34 |
| Diving depth operational, m | 45 - 50 max |
Project history: Built under the design of Lake. Differed by poor quality of construction and bad battle possibilities.
Modernizations: 1911, all: gasoline engines were shortened (3 cylinders were released in each) (800 / 400hp, 9 / 7kts); + 2 side drop-collars (6 torpedoes at all)
1913, Alligator, Kayman, Krokodil: + 1 x 1 - 47/40 Hotchkiss, 1 x 1 - 7.6/94
1913, Drakon: + 1 x 1 - 47/40 Hotchkiss, 1 x 1 - 37/20 Hotchkiss
Naval service: All 4 boats were laid up in November 1916. Later they all were in a port of Helsingfors on long-term storage where they were captured by Germans and are taken out to Germany (except for Alligator) for dismantling on metal. Alligator staid at Petrograd port till 1924, and then was handed over on demolition.
Krokodil 1914
Many thanks to Wolfgang Stöhr for additional information on this page.
© Ivan Gogin, 2009-14