SUBJECT INDEX 



965 



Number(s), Planing, def and use of, IG 

 Reynolds, calculation of, 15 



tables of, 88-94 



variations of, 15 

 Strouhal, application of, 16, 143 

 Weber, def and use of, 16 

 a;-Reynolds and 5-Reynolds, def of, 15 



Objects, fixed in a stream, design of, 675 

 Oblique tunnels for shallow-water craft, 670, 671 

 Obliquity of hull not used in calculating wetted surf, 108 

 Observations of flow with tufts, 874 

 Observed resistance data for models and ships, 297 

 Oceanographic conditions affecting ship design, 448 

 Offset running positions in channels, data on, 413 

 Offsets, of frame stations, calc of, from faired lines, 203 



ship, 0-diml, representation of, 190, 192 



0-diml for TSS parent form, 225 

 Off-the-surface flow data on models, interpretation of, 254 

 Ogival heads or noses for appendages, 676 

 Open-water model screw-propeller tests, 632, 876 



data from, 333-335 



in variable-pressure water tunnel, 334 

 Openings, water inlet, and discharge, design, 701 



positioning to remain submerged, 701 

 Operating conditions, two or more, powering for, 388 



requirements for planing forms, 824 

 Operation(s), in confined waters at supercritical speeds, 412 



shallow-water, modification of normal forms for, 666 

 Optimum diameter for a screwprop, 597 

 Orbit radii of trochoidal wave, decrease with depth, 169 

 Orbital velocities for surface particles of trochoidal waves, 



162, 166, 16S, 169 

 Outboard propulsion, with vertical screwprop drive, 653 

 Outflow jet, of screwprop, axial and rotational vel com- 

 ponents in, 260 



position of multiple rudders relative to, 708 

 Outline, expanded-blade, for ABC ship, 624 



sketch, first, of a large ship, 486, 4S7 

 small craft, 827, 828, 852, 853 

 Outer hull, of submarine, definition of, 810 

 Overall problem of the ship designer, 454 



ship appendage resistance, values for, 288 



wetted surface of submerged body, calculation of, 322 

 Overboard discharges for heat exchangers, design notes, 



701 

 Ovoid, 3-diml, construction, with single 3-diml source, 23 



Paddletrack propulsion, design features, 638 

 Paddlewheel(s), bibhography on, 335-337 

 blade area, determining, 642 

 design, layout for ABC ship, 644 

 notes on hydrodynamics of, 638 

 variations from normal, 648 

 details and mechanism, design notes, 645 

 diameter, relation to hull design, 643 

 feathering, definition and design sketch, 640 

 performance data on, 335 



position, long'l, rel to hull and wave profile, 241, 643 

 positioning and shape of contra-vanes abaft, 688 

 Parallel designed waterline, definition of, 230 

 design lane for, 480 

 reference data on, 231 

 middlebody, detail design, 483, 484 



Parallel middlcl)ody, longitudinal position of midlength, 

 483 



resistance data, systematic, 300 

 Parameters, bulb-bow, 485 



ship, ratios of coefficients and, 030 

 transom-stern, 485 

 Parent form ; see Form 



Passages, internal, friction data for water How, 105 

 Pattem(s), flow; see Flow 



stream, construction of from line sources and sinks, 59 

 wave; see Wave 

 Pendulum and metacentric stabiHty on submarine, 812 



stability, definition of, 813 

 Performance, allowances, design and, 454 

 for ABC ship, 456 

 confined-water, unexplained anomahes in, 414 

 data, from jet propdevs, 337 



screwprop design charts, 335 

 of ship, calculation of, 1 



references to, 223 

 on controllable and reversible props, 338 

 paddlewheels and sternwheels, 335 

 good, ship form, comparison of new design with, 496 

 miscellaneous propdevs, 339 

 new ship design, guaranteeing, 459 

 propdev, and power, lack of rehable data for confined 

 waters, 411 

 predicting, 332 

 screwprop(s), effect of cavitation on, 152 



under supercavitation, 156 

 ship, practical benefits of calculating, 220 

 Periods of trochoidal waves, tables of, 165-168 

 Persistence of wake abaft a ship, 261 

 Phenomena; see particular kind desired 

 Photograph(s), flow, in ciro-water channel, 137-139, 874, 

 875 



references to, 34, 35 

 of flow about hydrofoils, refs to, 79 

 stereoscopic, of ocean waves, 177, 179 

 Photographing cavitation on model and ship props, 153 

 Physical arrangement of submarines, 810 



concepts having scalar dimensions, abbrev for, 911 

 Pioneers in marine architecture, mention of, xx 

 Pitch angle, hydrodynamic, ft, first approx for screwprop, 

 615 " 



second approx, 616 

 -diameter ratio, hydrodynamic, for screwprop, 617 

 proper, for ABC ship, 620 

 screwprop, 598 

 variation with radius of screwprop, 598 

 Pitching moment on hydrofoil, 80 

 Plane(s), and rudder(s), positioning, 706 

 bow, general design rules, 736 

 diving, automatic flap-type, 735 

 bow, design of, 736 

 contra-features for, 736 

 positioning of in design, 706 

 diving, sections, selection and proportions, 722 

 stern, design rules for, 736 

 Planing, craft, bibliography, 269-271 



bottoms, typical pressure distribution on, 266 



design of, 823 



forces on, definition diagram, 264 



full-, design procedure, 821 



