958 



HYDRODYNAMICS IN SHIP DESIGN 



Estimating, weight, for round-bottom motorboat, 853 

 principal, second, for surface ship, 474 

 procedure, for motorboats, 828 

 second, for planing-huU motorboat, 831 

 third approx, for motorboats, 863 



Euler number, definition and use of, 8-1 1 



Exhaust, gases and air, mechanical properties, 922 

 underwater, for propelling machinery, 545 



Expanded-area ratio of screw propeller, 602 



chord length of screwprop blade derived from mean- 

 width ratio, 340 



Experimental and calculated ship resist, comparison of, 216 



Factor(s), absolute size, in maneuvering requirements, 452 



basic, in ship design, 442 



conversion, English-metric, 928-931 



merit, for predicting shaft power, 380 



reduction, for calculating added masses, 430 



section shape, for vibrating ships, 429 



thrust-load, 343, 345 



calculating for a screwprop, 613 

 variation with ship speed, 344-346 



unrelated, effect on hydrodynamic design, 502 

 Faired principal ship lines, practical use of mathematical 



formulas for, 203 

 Fairing, and hull smoothness, achieving, 749 

 problems of, 738 



appendages in general, 742 



definition of, 738 



designed waterhne of ABC ship, 200 



enlargements around shafts, 744 



exposed shafts at emergence points, 746 



for inside corners, 742 



hub, screw-propeller, 601, 744, 745 



importance of, 738 



mathematic, of DWL entrance, ABC ship, 200-202 



necessity for in ship lines, 193, 194 



propeller hubs, 745 i 



section-area curve, 198 



ship lines by mathematic methods, 199 



underwater, on a ship, problems in achieving, 749 

 Fairness and curvature, value of in ship hnes, 193 

 Fat forms, changes of attitude and trim, 329 



hull forms, vessels with, 770 



ships, resistance data for, 303-306 

 Fatness ratio, first approx, 464-466 



relation to displacement-length quotient, 930, 932 

 Feathering features, in propdev design, 578 



paddlewheels, definition and design sketch, 640 



propellers, design data for, 651 

 Fender(s), constructed as bulges, design of, 769 



fixed, design of, 699 



strakes, design of, 560, 700 

 Ferryboat(s), hulls and appendages, design of, 793 



requirements and references for, 790 

 Fetch, for wind waves, 176 



Fields, velocity and pressure around a hydrofoil, 82 

 Filleting at inside corners, 742 

 Fillet(s) ; see also Fairing 



at strut-arm endings, 679, 680 



casting, use of, for fairing, 742 



definition of, 738 



fairing, and problems of hull smoothness, 738 



root, for screwprop blades, shaping, 606 



Fillet(s), welding, use of for fairing, 742 

 Fin(s), adjustable, on raft Kon-Tiki, 698 

 ahead of movable rudders, 75, 77, 719 

 fixed stabilizing, design of, 697 



flexible cantilever type, calc of added mass, 438, 439 

 fulcrum or stabilizing, on ultra-high-speed motorboats, 



862 

 Jennej', to prevent air leakage to propellers, 748 

 torque-compensating, design of one type, 699 

 Fine, slender hulls, design notes, 752 

 Fireboats and firefloats, design problems, 774 

 Fire-fighting monitor, improved design, 776 

 Fishing vessel(s), bibhography on, 771-774 

 design of, 770 



Japanese, illustrations of, 771, 772 

 standard series, Japanese, 300 

 Fittings, recessed Ufting and mooring, 743 

 Five-screw (propeller) installations, notes on, 521 

 Fixed appendages, design of, 675 



guards and fenders, design of, 699 

 objects in a stream, design, 675 

 screwprop shrouding, design of, 687 

 stabilizing skegs or fins, 697 

 Flap, controllable, for planing craft, 840 



hinged, for closing propeller tunnels, 671 

 -type rudders and planes, automatic, 735 

 Flare, compound, design procedure for, 551 

 Fleet tug, displacement of appendages, 296 

 Floating dry docks, self-propelled, 779, 780 

 Floats for pontoon bridges, 782 



Flooding spaces, free-, resistance due to flow through, 323 

 Floor, rise of, in mid- or maximum-sections, 476, 477 



magnitude, for planing craft, 836 

 Flow, abaft a screw propeller, 259 



adequate, to propdevs in confined waters, 668 

 air-, pattern, over ABC ship, estimated, 565 



passenger-ship model, 563 

 analj'sis for arch-type stern, 521 

 and force data for hydrofoils, 72 

 pressure around a hydrofoil, 80 

 around special forms, 46 

 in a liquid, formulas for, 7 

 around an irregular 3-diml bodj', 43, 46 

 ship, prediction of, 239 

 special forms, 46 

 at propdev positions, determination of, 358-366 

 estimated, 258, 259 

 screwprop positions, anal3'sis of observed, 259, 

 366, 367 

 back, around ships in canal locks, 414 

 curvature, in screwprop design, corrections for, 625 

 data, viscous, 86 



summary of formulas for, 87 

 deflection around separation zones, apparent, 139 

 derivation of formulas for 2-diml and 3-diml, around 



sources and sinks, 17-24 

 diagrams, about hydrofoils, list of refs, 78, 79 

 for upper works, 276 

 ship, analj'sis of, 239 

 source-sink, delineation of, 52 

 surface-flow, on model, analj'sis of, 250 

 use of for positioning appendages, 258 

 3-diml radial, data for constructing, 64 

 uniform, data for constructing, 65 



