The Submarine Torpedo Boat
Its Characteristics And Modern Development

INDEX 211 Submerging, equilibrium factors of, 53 Submerging type versus tire diving type, 46 Superstructure, form of, 105 T Tactical diameter, 92 Tactical efficiency, 138 Tactical evolutions, 153 Tactical value, 26 Tactics of the sea-going submarine, 168 Taylor, Admiral D. W., rule for wetted surface, 80 Tenders, submarine, 185 Thrust deduction factor, 70 Torpedo, automobile, 8, 161, 174 -----, air flask, 176 -----, air heaters, 182 ——, angle fire, 182 -----, automatic sinking device con- trol, 182 -----, Bliss-Leavitt, 179 -----, cost of, 184 -----, Davis, 184 -----, engine, 178 -----, government factory at New- port, R. I., 184 ——, hydrostatic piston, 178 ------, immersion chamber, 178 -----, Obry gear, 180 -----, steering mechanism, 180 -----, wake of, 140 -----, warhead, 176 Torpedo, deck tubes, 97 Torpedo, methods for fixing, 32, 161, 181 Torpedo, gear for loading and hand- ling, 97 Torpedo range, 28 Torpedo tubes, 97 Torpedo rake, 140 Trim, maintenance of, 16 Tuck, Prof. J. H. L., 22, 131 Types, double hull, 22, 44 ----, d’Quevilley, 22 ----, Electric Boat Co., 18 ----, Lake Torpedo Boat Co., 18 ----, Laurenti, 20 ----, Sea-going, 136 ----, Submersible, 38, 42, 58 ...., Submarines proper, 38, 40, 42, 58 U U-9, chief characteristics of, 22 U-51, exploit of the German, 36 Unsolved difficulties in design of large type, 137 Use of mines and bombs against the submarine, 145 V Van Drebbel, Dr. Cornelius, 1 Variations of the magnetic compass, 88 Ventilation of storage batteries, 108 Visibility circle of, 162 ----, of air bubbles, 140 ----, of periscope as a target, 144 W Wake of Torpedo, 140 Warhead of the torpedo, 176 Weight, Effect on design, 61 Weight of storage batteries, 127 Weight of power plant, 65 Weights, apportionment of, 62 Wetted surface formula, 80 Whitehead, Robt., 174 Wireless, 97