V-1

At Portsmouth, N. H., was bunched the largest submarine owned by the U. S. She was christened "V1" and is the first of a new series of nine submarines capable of fleet work -that is, capable of maintaining the speed sufficient to cruise with the battle fleet, and having an equal radius of action.

The V-1 is 341 ft. 6 in. over all, 27 ft. 6 5/8 in. in breadth, and has a surface displacement of 2,164 tons. Her speed on the surface is to be 21 knots, and submerged, 9 knots. Her complement will consist of 7 officers and 80 men.

In her comparatively spacious inside, she will carry a whaleboat and a motor launch, each 24 ft. in length.

Fresh water supplies will be obtained by distillation with the heat of exhaust gases from her Diesel engines and with special electric heaters.