SUBJECT INDEX 



973 



Ship(s), persistence of wake behind a, 261 



powering data for steady-ahead motion, 354 

 prediction of behavior in confined waters, 389 

 principal dimensions of typical, 223 

 requirements, fundamental, for every, 443 

 resistance; see Resistance 



skegs and appendages, added-masa data for, 438 

 speed and power increase for existing, 387 



very low, resistance data for, 306 

 smoothness and fairness, achieving, 749 

 still-air and wind resistance, 322 

 straight-element design, partial bibliography, 764 

 surface, and submerged, estimate of total resist, 313 

 equation, 0-diml, application of, 191 

 friction drag calculation for, 126 

 mathematical and 0-diml representation of, 189 

 probable flow at a distance from, 256 

 wetted, computation of, 106 

 total resistance, variation with T,,, 308-310 

 trials, criterion of D. W. Taylor for Umiting depth, 407 

 -turning moments and rudder torque, 720 

 typical, proportions and shape data, 223 

 resistance from model test data, 297 

 vibrating, comparison with geometric shape, 423 



estimating added-mass coefficients of, 433 

 -wake fraction, estimated, 368 

 -wave interference alongside ship, 243 

 profiles, tj'pical, 239 

 relations, 217 

 waves, data on, 160 

 Shock-wave celerity, in liquids and solids, 7, 8 

 Short appendages, definition of, 108 



bossing, shape for ABC ship, 685 

 Shrouding, fixed screwprop, design of, 687 

 Side blisters or bulges, design, 517 

 Silhouette area of a ship above water, 277 

 from abeam, typical surface-ship, 283 

 Similitude, principles of, 3 

 list of references for, 4 

 Simple ship; see Ship 



waves for design purposes, 171 

 Simplified ship form; see Straiglit-element 

 Sine-wave profile, abscissas and ordinates for, 170, 171 

 Singing and vibration, apphcation of Strouhal number to, 

 143 



prevention on screwprops, 636 

 of screwprops, refs to, 144 

 Single, -bladed screw propeller, 600 

 or multiple rudders, 708 

 -screw body plans, 234-236 

 stern, arch type of, 521 



arrangement and designs, 518 

 unsymmetrical, design of, 528 

 Sink; see Source and sink 

 Sinkage, and trim data from models, 874 

 in open, deep water, 325 



shallow and restricted waters, 328 

 references to, 331 

 data, for four cargo ships in shallow water, 328-330 

 design for reduction of, 661 

 Sinusoidal waves, formulas for, 170 

 Size, absolute, as a factor in maneuvering req'ts, 452 

 Skeg(s), acting as docking supports, 690 



Skeg(s), added-masa data for water around, 438 

 deep keel and, design for motorboats, 842 

 ending, contra-guide, design, 532 

 endings adjacent to propdcvs, 530 

 fixed stabilizing, design of, 697 

 motorboat, design notes, 842 

 multiple-, stern, design of, 531 

 partial, for rudder support, design, 690 

 termination of, 747 

 Skew-back in ABC propeller blade profile, 627-629 



screwprop design, 603, 604 

 Slime, formation of and effect on friction resistance, 118 

 Slope(s), DWL at entrance, graph for, 479 

 in run, 480 

 of buttocks for confined waters, 668 

 propeller-shaft, effect on resistance, 293, 294 

 resistance and thrust, estimate of, 321 

 surface, of trochoidal waves, 163, 164 

 varying water-surface, drag and thrust data, 321 

 water-surface, canals, channels, and rivers, 660 

 Slots, and ports, freeing, required area of, 554, 555 



gaps, and holes, drag data for, 294 

 Small craft, definition of, 819 

 powering of, 824 

 prelim design study, requirements, 825 



hydrodynamic design, 819-822 

 references to tabulated data, 228 

 semi-planing and planing, design of, 823 

 special design features, 822 

 Smoke and gas discharge, abovewater, design, 563, 565 

 underwater, 565 

 gas velocit}', minimum, 564 

 stack(s), design, 564 



masts, deck erections, drag and wind resist, 281 

 Smoothness, hull, and fairing, definition of, 738 

 importance of, 738 

 hydrodynamic, criterion for, 112 

 problems, specific, 739 

 underwater, achieving on a ship, 749 

 Snubbing of stem; see Stem 

 Soakage for wooden motorboat hulls, 864 

 Solitary-wave speeds for shallow-water depths, 661 

 Solutions to equations of motion, multiple, 6 

 Sound gear on merchant vessels, location of, 705 

 Source abbreviations for references, xx 

 Source-sink combinations, derivation of <j)- and i^-formulas 

 for flow around, 17, 20 



references to streamline diagrams around, 39 

 flow diagrams, delineation of, 52 

 patterns, by colored liquid, 67 

 construction of 2-diml, 54 



3-diml, 62 

 electric analogy, 67 

 pair, 2-d)ml, radial stream functions for, 55 

 Source(s) and sink(s), forces exerted by or on bodies 

 around, 68 

 line, definition and sketches of, 60 



delineation of flow patterns around, 59 

 multiple pairs, flow pattern around, 59 

 partial bibliography on, 70 

 two pairs, dehneating flow pattern for, 58 

 variety of stream forms produced by, 67 

 2-diml flow pattern around, 56 



