83 



SUBJECT INDEX 



Turning movements (Continued) 



See also Tactical curves. 

 Turning tests, for cruisers CL51-54, model, 

 R-25 

 for torpedo boats, model, R-36, R-4l 

 Turret foundations, design, model, 206, 207 



tests of, full-scale, 26l 

 TURTLE, tests for, model, 145 

 Twin-screw ship, model tests of, 578 

 steering of, model, 331 

 wake survey in way of propeller disk, 

 model, 58O 

 Twin-skeg, four-screw battleship, thrust de- 

 duction of propellers for, model, 428 

 Two-way traffic in a restricted channel, 579 

 Typing and layout of reports and translations, 

 instructions for, R-225 



Underwater explosion tests, of Everdur joints 



in models, R-348 

 Underwater explosions, 480, 489, 5H J T-157, 

 T-169 

 bibliography on, 480 

 damage by, 509 



mathematical treatment of, T-209 

 oscillation of gas globes in, T-209 

 photographic study of, R-39. R-65 

 pressure of, measurement of, 479, 523, 



527; R-157 

 protection against, 490, 491; R-177, R-202 

 research on, R-244, R-248, R-254, R-265, 



R-279, R-296 

 resistance to, 491, 492 

 Shekleton's report on, 479 

 shock waves from, measurements of, T-213 

 surface effects caused by, R-252, R-304 

 under reduced atmospheric pressure, 520 

 Underwater path, exploration of, R-251 

 Underwater pressure gage, 479, 523; R-157 

 Underwater shock wave, protection against, 



R-49 

 Uniform speed, of streamlined falling body, 



R-42 

 United States Experimental Model Basin, 



building wooden towing models at, 323 

 description of, 11 8 



water currents in basins of, velocity of, 304 

 United States Maritime Commission, tests of 

 models for, 598, 623, 629, .640 



United States Naval Technical Mission in 

 Europe, diary of a member of, R-365 



Valve, for mixing steam and water, 219 

 Vanes, for stabilizing ships, model, R-130 

 V-bottom motor boats, resistance of, model, 



R-35, R-^7 

 V-bottom torpedo boats, turning tests of, 



model, R-36 

 Velocity, in water, development of hot-wire 

 methods for measurement of, 592 

 measurement of, by photoelectric time-interval 

 meter, R-214 

 Ventilating apparatus, portable, tests on, 

 52 

 tests on, 96, 119, ^3, 198, 200, 210 

 Ventilation, through deadlights, 190 

 Ventilation ducts, for warships, 55 



obstruction in, 56, 91, 149 

 Vibration, damping of, 449; T-39, T-40, T-109 

 of destroyer DDl4l, full-scale, 372 

 of hulls,_full-scale, 263, 382 [T-7], 395; 

 T-176 

 model, 382 [T-7], 395 

 pallographic measurement of, T-176 

 of mast, on SAO PAULO, 10 

 of shaft bossing, on HAMILTON (DD141 ), 



full-scale, 305 

 of ships, full-scale, T-l66 

 of skegs, on WASHINGTON (BB56), full-scale, 



R-22 

 recorded by scratch process, T-13 

 theory and practice of devices for measuring, 

 T.-51, T-141 

 Vibration data, for PONTCHARTRAIN, full-scale, 



R-294 

 Vibration gage, R-189, R-246, R-267; T-13 

 Vibration generator, construction and opera- 

 tion of, 524 

 Losenhausen, 539, 554 

 Vibration manual, for engineers, R-189 

 Vibration neutralizes, for ships, T-12 

 Vibration problems, solution of by impedance 



method, R-226 

 Vibrograph, T-l4l 

 Vibrometer, T-141 

 Visitors, to David Taylor Model Basin, manual 



for, 569 

 Voltage regulator, electronic, 502; R-51 



