964 



HYDRODYNAMICS IN SHIP DESIGN 



Meteorologic conditions affecting ship design, 448 

 Metric-English conversion ratios, 928-930 

 Middlebody, parallel, design of, 483, 484 



longitudinal position of midlength of, 483 

 systematic resistance data, 306 

 Miscellaneous propdevs, design of, 638 



performance of, 339 

 Mode(s) of motion, added masses for selected, 419 



of vibrating screwprop, 437 

 Model(s), ABC ship, test results for, 879 



and ships, bibliography on confined-water effects, 415 



observed resistance data for, 297 

 flow data, presentation and reporting of, 877, 878 

 lines-of-flow diagrams, 248-250 



off-the-surface flow data, observation and interpre- 

 tation, 264 

 residuary resist, rate of variation with speed, 306-308 

 resistance data, observed, 297 

 screwprops, open-water tests, 632, 876 

 self-propelled tests, 377, 632, 875 

 backing power from, 388 

 on motorboats with dynamic lift, 864 

 use of stock screwprops for, 870 

 series, sj'stematic resistance data, 298 

 ship, analysis of the surface-flow diagrams, 250 

 wake around or behind a, 259-262 

 tj'pical lines-of-flow diagrams for, 248 

 submerged, towing of, 322, 323 

 surface-flow diagrams, analysis, 250 

 test(s), controllability in shallow water, 876 



data, ABC ship models, analysis and comments, 

 879 



desired for large ship design, 868 

 on typical ships, resistance from, 297 

 reporting and presenting, 877 

 rotating-blade props, 337 

 hull lines for, 566 

 maneuvering, 876 

 motorboats, with dynamic lift, 864 

 neutral rudder angle, 876 

 notes for preKminary ABC design, 869 

 open-water and self-propelled, 632 

 resistance data from, 297 

 self-propulsion, data from, 377, 875 

 wavegoing, 877 

 when backing, 388 

 testing methods, EMB, 129 



program for large ship, 868 

 total resistance, variation with T,, 308-310 

 TSS, improving the performance of, 474 

 wave profiles, 241 

 wind resistance, 277, 278 



bibliography of model tests, 278 

 Model 56C of G. S. Baker, lines and resistance data, 234 

 Modulus, bulk, fresh and salt water, 923 

 Moment (s), and forces on typical planing craft, 264 

 -coefficient graphs, typical, for hydrofoils, 73, 74 

 force, and flow data for hydrofoils, 72 

 lateral wind, and heel angle, 285 

 pitching, on hydrofoil, 80 

 principal, on a planing craft, 264 

 Moment-of-area of WL coefficient, selecting, 478 

 Monkey rudders, on sternwheel craft, 709 

 Moored ship, estimating forces on, 287 



Moored ship, friction drag of, 128 



Mooring fittings, recessed, design of, 743 



Morrish formula; see Normand formula 



Motion(s), ahead, steady, ship-powering data for, 354 



diagrams, ship, 325 



equations of, multiple solutions to, 6 



mode(s), of, selected, added liquid masses for, 419 

 vibrating screwprop, 437 



unsteady, added mass of water around ship in, 417 



vortex, reference data on, 133 



wave, in shallow water, compared with deep water, 180 

 Motorboat(s), bibhography on, 865-867 



definition of, 819 



design, general considerations, 820 

 preliminary hydrodynamic, 819 

 ■n-ith limited draft, 858 



displacement-type, design of, 823 



round-bottom, first space layout, 852 

 weight estimate, 853 



rudders, design of, 724 

 Movable appendages, design of, 706 

 Multiple, -hulled craft, design problems, 788 



propellers, design to equaUze powers of, 573 



rudders, single or, 708 



-screw stern body plans, typical, 236 



-skeg stern, design of, 531 



solutions to equations of motion, 6 

 Mushroom anchor for ABC ship, proposed under-the- 

 bottom, 558, 559 



NACA blade-thickness forms, 621, 623 



Narvik class DD transom stern, model, 531 



Natural winds and waves, average relation between, 176 



Nets, flow, drawing of, 31 



Neutral control-surface angle for rudder(s), setting, 736 



rudder angle and model maneuvering tests, 876 

 Niedermair wave, definition and use of, 170 

 Nomenclature; see Appendix 1 

 Nominal wake fraction, definition of, 615 

 Nomogram for cavitation index, depth, water speed, 150 

 critical-speed ratio in shallow water, 395 

 square-draft to water-depth ratios, 393 

 Normand (J.-A.) formula for height of CB, 479 

 Nose outhne, elliptic, formulas for, 196 

 Notation, circular constant, 913 



list of sj'mbols, 900 

 Nozzle, Kort, definition sketch and design references, 687 

 Number(s), blade-Reynolds, definition and diagram of, 15 

 Boussinesq, def and use of, 16 

 Cauchj", 7 

 cavitation, and Euler, def and use of, 8, 10, 11 



tables and nomogram, 147-150 

 d-Reynolds, def of, 15 

 dimensionless, quantitative use of, 7 



summary and table of, 8 

 frequently used, powers and logs of, 931 

 Froude, def and use of , 1 1 



tables of, 12-14 

 Mach, 7 



of propelling engines, 570 

 propulsion devices, 567 

 roll-resisting keels, selecting, 691 

 screwprop blades, choice of, 599 

 for ABC ship, 612 



