SUBJECT INDEX 



357 



Gages 



strain, 185, 180, 188, l'.(2, 217, 203, 30(i 

 watci- pressure, 187, l'J2 



Gaussian 



(listriliutioii, 19 



law, 7o 



processes, 59, (H, (i'J 



Generation of pressures and forecs in the process of slanniiint;, \'-iS 



Generalyzed harmonic analysis, GO, 34G, 348 



Generating area, 25, 30, 31, 45, 46 



Great Eastern (SS!, 178 



Group velocity, 30, 322, 323 



Gusts, Hi 



Gyrostabilizing, Ui5, 208 



Hamburg (SS), 184-18G, 306 

 Harmonic component of a record, 30 

 Harmonic functions, 291 

 Heidberg (MSi, 39, 330 

 H-function, 131, 132, 136 

 Histograms, 5(), 57 

 Horizontal drag force, 327 



Hydrodynamic, 



force, time liistorv of, 305 

 loads, 283, 284 

 mass, 112, 113, 309 



Impact, 283, 284, 290 310 



duration of, 149, 293, 297 



flare, 142 



force in slamming, 149 



momentimi, 294 



of water, 277, 284 



on ship l30ttom, 284, 304, 308 



on wavy or rippled water siu'face, 141,^14'.), 308 



Impulse, 290, 305 



momentum of, 290, 291 

 of short duration, 136 

 succession of, 215 



Irregular Sea (also Seaway or Waves), see Waves, irregular, 

 Isobaric charts, 31 



Jadotville (SS), 247, 250, 252 



Kernel function, 167, 168, 174 



Laplace's equations, 130, 316 

 Lewis' ship sections, 110, HI 

 Liberty type ships, 138, 198 

 Limiting speed, 281 

 Limit of speed line, 250, 252 



Linear theory, 164, 165, 174, 303 



of coupled pitching and heaving, 153-155, 157, 258, 259 



of waves (or theory of waves of small amplitude), 316-318 

 Loads 



rapidly applied, 257, 283 



slowly varying, 257, 260 



Logarithmic decrement, 120, 128, 295, 296 



Log, 



data (ship's), 246, 249, 253, 298 

 declv, 254, 310 

 engineer's, 245, 254 

 -normal distribution, 57 

 weather, 254, 310 



Lurching, 161 



Maier-form ships, 136, 240 

 Mariner type SS, 134, 241, 250 



Mass 



apiJareiit, 106 



hvdrodvnamic, 106 



virtual,' 106 

 Mass transport, 25, 316, 321 

 Magnetic tape recording, :547 

 Metacentric height, 126, 160, 178, 208 

 Michell, 



assimi])tions, 123, 135, 136 



ships, 131, 132, 136, 239, 344 

 Model, 



brass, 27(1, 275, 294, 295 



elastic properties, 275 



experiments in waves, 154-157, 178-182, 240-242, 265, 267- 

 283 



jointed, 267, 296 



of destroyer, 154, 259, 260 

 Mormacmail (SS), 299 

 Mormacpenn (SS), 299-301 



Moments, 



liending, 143 

 daiH|iing, 125. 127 

 excitinf; in rolling, 1.59 

 inertial, 125, 126 

 restoring, 125, 126 

 rolling, 125, 143 

 yawing, 143 



Moment of inertia, 



added or hydrodynamic, 127 



of a ship, 127 



of the water tlisplaced 1)\" a ship. 127 



virtual, 126 



Naval weather service, :5I 

 Neverita (MV), l',)2 

 Newcombia (MV), 192 

 Newton's second law, 153. 162 

 Niagara (USS), 292 

 Nissei Maru (SS), 196-201 

 Nonlinear theory, 259, 2(i0, 303, 307 

 Nonlinearities, 



HI rcilhng, 160. 161 



of damping. Hit), 161 



of the righting moment, 160, 161 



Ocean wave data (need for), 302 



Ocean Vulcan (SS), 190, 200, 201;, 211, 216, 2.50, 257, 263-266, 



284, 285, 299, 301, 3(J6, 307 

 Optograph, 188, 264 



Orbital water motion (in waves), 314, 318 



Period distribution in waves, 12, 40 

 Perturbation velocities, 109 

 PhssG 



angle, 153, 156, 1.57, 158, 1(59, 214. 239. 244 



relation.ships. 3, 157, 167, 258, 259, 267 



significance of, 158 

 Pitch stabilizing fins, 209, 217 

 Potential flow, 2, 3, 13, 24, 130-133, 316 

 Pounding, 283 

 Power consumption, 184 



Pressure, 



coefficient, 23, 24 



distribution, 2, 4, 5, 89 



gages, 34, 56, 145, 194, 204, 261, 263, 265, 285 



generated bA' water acceleration, 109 



gradient, 3,'314, 319, .320 



in slamming, 140, 141, 145, 287-290, 308 



meter, 47 



normal, 3 



