SUBJECT INDEX 



961 



Hub(s), diameters, and screwprop-disc, 612 



screwprop, 601 

 sorewprop, fairing of, 601, 745 



type of, 633 

 vortexes, predicting, 155 

 Hughes friction-resistance formulas, 104 

 Hull(s), abovewater, comments on wind-fiiction resist, 2S0' 



drag coefficients for, 279 



proportions for strength, wavegoiiig, 496 

 adjacent to propdev positions, sliaping of, 536 

 and appendage combinations, design, 526 



screwprop vibration frequencies, relation of, 580 

 asymmetric, design of, 787 

 blunt-ended, long and narrow, design of, 755 

 design, detail, of the underwater, 504 



features, motorboat, interdependence of, 843 



relation of paddlewheel diameter and position 

 to, 643 



water flow applied to, 545 

 discontinuous-section, design of, 768 



friction drag on, 127 

 endings adjacent to propdevs, 536 

 fat, design of, 770 

 features, determination of general, 457 



for planing craft, selecting, 835 

 ferryboat, design for, 793 

 fine and slender, design of, 752 

 -force fraction for control surfs, definition of, 718 

 form(s), asymmetric, 787 



special, classification and design of, 750 



underwater, molding a new, 488 

 formulas for wind drag of irregular, 276 

 fouled-, condition, estimated shaft power for, 385 

 inner, of submarine, definition of, 810 

 laying out other types, 502 

 lines, preparation for model tests, 566 

 multiple-, craft design, 788 

 outer, of a submarine, definition and use of, 810 

 planing, design of, 827-852 



first space layout of, 827 



friction resistance of, 128 

 pressure, of submarine, definition and use of, 810 

 profile, underwater, 506 

 proportions of, for a surface ship, 464 



selection, for motorboat, 827 

 resistance, total, calculation of, 313 

 round-bottom motorboat, first space layout, 852 



weight estimate, 853 

 shape, along bilge diagonal, 517 



and propulsion, on a submarine, 813 



selection of for large ship, 476 



for round-bottom motorboat, 854 

 in entrance and run, 515 

 ship, general formulas for wind drag of, 276 



in unsteady motion, estimated added mass of 

 water around, 417 



rel of paddlewheel diam and position to, 643 

 small-craft, design of, 822 

 smoothness, fillets, and fairing, 738 

 straight-element, allowances for drag on, 127 



bibliography on, 764, 765 



design of, 762 

 surfaces, abreast screwprops, design notes, 672 

 type, selection of for motorboat, 827 



Hull(s), underwater, detail design of, 504 



profile for surface ship, 506 

 vibration and jiropdcv frequencies, relation of, 580 



in motorboats, 859 

 volume, first estimate, 471 

 with keel drag, design procedure, 543 

 Humps and hollows in Rr curves, diagram, 467 



Rt curves, diagram, 466 

 Hydraulic-jet propdevs, data on, 337 

 propulsion, design notes for, 648 

 radius, definition and sketch, 409 



of channels, calculation of, 409, 412 

 Hydrodynamic(s), applied to ship design, 442 

 design, effect of unrelated factors, 502 



of amphibians, 806 



preUminary, of a motorboat, 819 



problems of submarines, 809 



second, modifications for, 896 

 formulation of design specifications involving, 446 

 list of reference books on, 2 

 paddlewheel propulsion, 638 

 pitch angle ft of screwprop, first approx, 615 

 second approx, 616 



-diameter ratio, 617 

 requirements of a ship, analysis of, 460 



principal, of a small craft, 825 

 structural control-surface design, effect of on, 724 

 theoretical, useful formulas in, 2 

 Hydrodynamically smooth surface, criterion for, 112 

 Hydrofoil(s), compound, lift data and CP positions, 75-77 



test data from, 75 

 distribution of velocity and pressure around, 80 

 drag data for, 83 



effective aspect ratio for equivalent ship, 83 

 flow, force, and moment data for, 72 

 low-aspect ratio, empirical study of, as lifting surfaces, 



866 

 planforms and sections, design and drag data, 83 

 polar diagrams for simple, 75, 76 

 prediction of cavitation on, 149 

 -supported craft, bibliography, 271-273 

 symmetrical, cavitation and lift data, 151 



leading and trailing edges, 676 

 typical, cavitation limits on, 150 



flow patterns around, 78 



test data from, 73 

 velocity and pressure fields around, 82 

 with flat and round edges, data on, 73, 74 



Icebreakers, bibliography on, 804-806 



definition and design problems of, 794-799 



freeboard, minimum, 797 



general data and references on, 799 



tabulated data for modern, 800-803 



transverse section for, 796 

 Iceships, definition and design problems, 794-799 

 Ideal efficiency method to predict shaft power, 383 



liquid, velocity and pressure diagrams for, 31 

 Illustrative prelim design procedures, comments on, 898 

 Iirunersed-transom drafts and speeds, 530 



stern, design of, 529 

 Improvements in design, field for future, 444 

 Inception and effect of cavitation on ships and props, 145 

 Inclined bar, to make air-filled ditch for prop shaft, 685 



