These two submarines are of the Germania, or Krupp type, and have a submerged displacement of 250 tons. They have Krupp-Nuremburg heavy-oil engines of 400 H.-P., and electric motors of 160 H.-P. Their speed on the surface is 12 knots, and 8 knots when submerged. The surface range of action is about 1,000 miles, and the submerged endurance about three hours at full speed. Their armament consists of two bow torpedo tubes and four torpedoes are carried. Their complement is fifteen officers and men.

Alligator Class.

(Completed 1908–9.)

Four submarines of the improved Lake type. They have a submerged displacement of 500 tons. Their speed is 15 knots on the surface and 10 knots when submerged. They are fitted with two bow and two stern tubes, and carry six 18-inch Whitehead torpedoes. Their complement is seventeen officers and men. (See also page [96].)

Minoga Class.

(Completed 1908.)

Two small submarines of the Holland-Bubnoff type, which were built in sections to facilitate transport by rail. They have a submerged displacement of about 150 tons, and a speed of 12 knots and 9 knots, above and below, respectively. Their complement is eleven officers and men.