The Submarine Torpedo Boat
Its Characteristics And Modern Development

INDEX 209 M Maintenance of submarine block- ade, 168 Maintenance of trim, 62 Means of defense against the sub- marine, 143 Metacentric height, 42 Method of advance during attack, 160 Method of torpedo fire, 32 M-1, U. S. submarine, characteris- tics of, 16 Mines, in Civil War, 196 ----, in Franco-Prussian War, 196 ----, in Russo-Japanese War, 196 Mines, submarine, contact, 197 ----, ground, 200 ----, electro-contact, 198 ----, method of employment of floating mines, 196 ----, use of, against the submarine, 145 Mine-layer, operations of, 197 Model basin, experiments for resist- ance, 65, 68 Morse, Le, 8 Motors, electric, 122 Motors, typical speed-power curve of, 75 N Narval, the, 12 Nautilus, the, 4 Navigation, 88 ----, submerged, 93 ----, surface, 90 Nordenfelt’s submarines, 10 North Sea, submarine operations in the, 154 O Obry gear, 180 Operations of the submarine, de- fensive, 158 -----, offensive, 168 Operations of mine layer, 197 P Peacemaker, the, 22 Pasted plate, 126 Periscope, the, 12, 32, 93 -----, vulnerability of the, 144 Pitt, William, 4 Planté plate, 124 Plongeur, Le, 6 Position marker buoy, 108 Power, estimation of, 67, 78 Power plant, 78, 110 -----, installation and reliability of, 28 ------, limitations of present system of, 18 -----, percentage of weight allotted to, 65 -----, single unit system of, 140 Propellers, advantage of forward, 93 -----, Capt. C. W. Dyson on design of, 77 -----, computation and formulas, 73 —, selection of, 71 Proper balance of all factors, 137 Proposto system of propulsion, del, 130 Propulsive system, 18, 28, 65, 80, no, 130, 140 Pumping for ballast and fuel sys- tems, 106 Q Quarters, for men, 34, 36, 82, 84 -----, food facilities, 84