SUBMARINES.
U 1-2.
—These are the earliest German submarines, and displace about 150 to 200 tons. The speed above water does not exceed 9 knots, and two torpedo-tubes are carried. There is a crew of 11.
U 3-8.
—These boats belong to the second German type. The displacement is about 250 tons, and the surface and submerged speeds are 12 and 8 knots respectively. Three torpedo-tubes are fitted. Complement, 14 officers and men.
U 9-20.
—These boats are believed to be of about 400 tons, with a surface speed of 15 knots, and to be armed with three or four torpedo-tubes. The crew consists of 17 officers and men.
U 21-26.
—These submarines displace about 800 tons, and are said to be able to travel at 18 knots on the surface. They are armed with four torpedo-tubes and two small quick-firing guns. The complement is about 22 officers and men.
U 27-36.
—These boats are the very latest type. The displacement is about 900 tons, the surface speed 18 knots, and they can travel at 12 knots when submerged. The armament consists of four torpedo-tubes and two quick-firing guns on high-angle mountings. About 30 officers and men are carried.