Makrel Class.

(Completed 1907.)

Two vessels of the Improved Holland-Bubnoff type. They have a submerged displacement of about 200 tons. The petrol motors are of 300 H.-P., and the electric engines of 150 H.-P. Their speed is 10 knots on the surface and 8 knots when submerged. They are fitted with two bow tubes and two stern holders, and carry six 18-inch Whitehead torpedoes. Their complement is fifteen officers and men.

Lossos Class.

(Completed 1907.)

Two somewhat smaller submarines of the Holland type. Intended either for the Black Sea or Far Eastern Flotilla. Similar to those of the Sterliad class.

Karp Class.

(Completed 1907–8.)