SUBJECT INDEX 



975 



Steam function, pattern for 3-diml sourco-sink pair, 66 



radial, for 2-diml source-sink pair, 55 

 Stream patterns, 2-diml, construction of from line sources 



and sinks, 59 

 Streamline(s), delineation of around a single source, 52 

 various bodies, 31 

 2-diml sources and sinks, 54 

 3-diml sources and sinks, 62 

 derived analytically, 218 

 diagrams, from source-sink combinations, 39 



published, 33 

 patterns around ships, references to, 39 

 Streamlining ; see Fairing 



of upper works, advantages and disadvantages, 561, 

 562 

 Street or trail, vortex, 6, 141 

 Strength, abovewater hull proportions for, 496 



of screwprop blades, 634 

 Stress, internal shearing, representative values for water, 



94 

 Strips, spray, for planing craft, 841 

 Strouhal number, application of, 16 

 Structural considerations, bilge-keel design, 694 



roughness, working hmits on, 740, 741 

 Strut(s), advantages and disadvantages, 677 

 arm(s), design, 678 



drag of elliptic and streamlined sections, 291 

 position at strut hub, 680 

 section (s), leading and trailing edges, 676 

 placing in lines of flow, 678 

 shape(s) for ultra-high speeds, 680 

 half-sections of five, 679 

 selection of, 678, 679 

 bossings, or, selection of, 677 

 contra-, abaft sorewprops, layout of, 682 

 Subcritical range, effect of lateral channel restr in, 410 



shallow water on resistance and speed in, 390 

 Sublayer thickness in turbulent flow, laminar, 104, 120 

 Submarine (s), bulk volume of, 322 



design problems common to all, 809 

 Submerged and surface forms, est of total resist for, 313 

 body, calculation of bulk volume and wetted surface, 

 322 



drag coefficients and data for, 322 

 pressure resistance as function of depth, 323 

 maneuvering of a submarine, 813 

 ship models, questionable practices in towing tests 



of, 322, 323 

 vessels, calculation of appendage resistance, 295 

 Submergence, immersed transom, Fj values for, 530 



propeller-tip, necessity for adequate, in design, 500, 

 541, 571 

 Submersible, definition and description of, 810 

 Submersion, screwprop, and trim, under variable load, 498 



inadequate, avoiding air leakage with, 631 

 Subsurface waves, bibliography on, 185 

 Supercavitating range, definition of and design for screw- 

 props in, 631 

 Supercavitation, screwprop performance under, 156 

 Supercritical speed; see Speed (s) 

 Superficial or wetted area of a hydrofoil, 5 

 Superstructure(s), air-flow diagrams for, 276 

 and upper works, design of, 561 

 general formulas for wind drag of, 276 



Surface control; see Control 



Surface(s), developable, drawing lines for ships with, 765 

 flow diagrams on models, analysis of, 250 

 hull, abreast screvvprops, 672 

 hydrodynamically smooth, 112 

 overall, wetted, of submarine, def and calc of, 322 

 planing, bibliography on, 269 

 propellers, design procedure for, 650 

 roughness, practical definitions of, 114 

 ship, application of 0-diml equation to, 191 

 estimate of total resistance for, 313 

 friction-resist calculation for, 126 

 mathematical and 0-diml representation of, 189 

 probable flow at a distance from, 256 

 tension and dynamic viscosity, 920 

 -water currents due to natural wind, 287 

 wave(s), profile on a ship, prediction of, 246 

 system, calculation of energy in, 163, 215 

 theoretical, data on, 160 

 wetted, analysis of, for new design, 493 



appendages and bare hull, calculation of, 106-109 

 calc for transom-stern ABC ship, 109 



of overall, for a submerged body, 322 

 coefficient, 0-diml, contours of, 106, 107 

 computation for a ship, 106 

 diagram for a planing craft, 851 

 longitudinal curvature, and length of shallow- 

 water craft, 665 

 of planing forms, 268 

 to sail-area ratio, 786 



0-diml contours for calculation of, 106, 107 

 Sustained speed, discussion of, 455-457 

 Swinging props for steering and turning, design notes, 737 

 Swirl cores, predicting, 155 

 Symbols and their titles, 900 

 Symmetrical propeller-blade sections, design and use of, 



605 

 Synthetic complex sea, delineation of, 172 

 Systematic wake variations, use of, 572 



Tables; see item desired 



Tandem appendages, shadowing allowances for, 292 



screwprops, design features, 655 

 Tank, electrol3ftio, for plotting equipotential lines, 31, 49 

 Tanqua viscous drag, definition of, 118 

 Tanvis viscous drag, definition of, 119 

 Taylor, D. W., criterion for limiting depth for ship trials, 

 407 

 friction-resistance formulas, 104 

 Standard Series, contours of TJ^/A for, 298 

 data, Gertler reworking of, 301-303 



prediction of residuary resistance, 317 

 parent form for, 223-225 

 performance, bettering of, 465, 474 

 section-area curves, 224 

 superiority of for certain Cp values, 474 

 Taylor Standard Series, 0-diml offsets for, 225 

 quotient, definition and use of, 11 

 ratio of to Froude number, 11, 932 

 tables of, 928, 929 

 Telfer extrapolation diagram, 320 

 friction-resistance formula, 104 

 method, list of references, 318-319 

 of predicting ship resistance, 318 



