Akula.
(Completed 1909.)
A large submarine of the Holland-Bubnoff type. Her displacement is about 570 tons, and her speed 16 knots on the surface and 10 knots when submerged. The armament consists of two bow and one stern tube, with six 18-inch Whitehead torpedoes. The complement is 20 officers and men.
Kaschalot Class.
(Completed 1909–12.)
- Kaschalot.
- Kit.
- Krab.
- Morsh.
- Narval.
- Nerpa.
- Tinlen.
These seven vessels are among the most modern submarines in the Russian flotillas. They are of the Holland-Bubnoff type, and have a submerged displacement of about 500 tons. Heavy-oil engines of over 1,000 H.-P. drive them at a maximum surface speed of 16 knots, and electric motors of 550 H.-P. give them a submerged speed of just over 10 knots an hour. Their surface cruising range is about 3,000 miles. Their armament consists of two bow and one stern tube with six 18-inch Whitehead torpedoes. They are also fitted with a small, quick-firing, high-angle gun for defence against air-craft. Their complement is 21 officers and men.
Russian Submarines Building.
At the commencement of the war there were nineteen Russian submarines in course of construction. Very little information concerning these boats can be obtained, except that their submerged displacement ranges from 800 to 1,500 tons, and their anticipated surface speed is 20 knots. Some of the 800-ton vessels have already been completed, and the first twelve will be named: Svitza, Leopard, Pantera, Ruis, Kaguar, Tiqr, Yaguar, Vepr, Wolk, Baro, Gepard, and Tur. These vessels have a speed of 16 knots on the surface and 10 knots when submerged. Their complement is 25 officers and men.