95 



SUBJECT INDEX 



Propellers, cavitation tests on, model, T-9, T-24 

 contra -rotating, T-214 



controllable-pitch, on DAHLGREN (DDlSy), full- 

 scale, R-338 

 cycloldal, trials conducted, full-scale, 64-9 



trials conducted, full-scale and model, 678 

 design and manufacture of model, at model 



basins, 290 

 efficiency of , 6] 



interaction of, with hull, model, I+70 

 mass moment of inertia of, 307 

 Moldwood, R-206 

 oppositely rotating, T-2Ti 

 partly submerged, on sea-sled, model, R-1 32 

 regenerative, tests of model of, 27 

 scale effect on, model, 660 

 screw, cavitation on, 1-^-6 

 singing of, T-123 

 theory of, T-36 

 thrust distribution in, T-13'+ 

 torque on, 513; T-36 

 vibration measurements of, 649 

 Propelling machinery, vibration in, full-scale, 



518, 5^7. 551 

 Propulsion, as affected by shaft struts and 

 spectacle frames, 256 

 by wind rotors, 1 08 

 components of, scale effect on, T-68 

 efficiency of, T+7 

 of battleships, model, U29 

 of destroyers, full-scale and model, 390 

 of SALINAS (AOI9), full-scale, 350 

 of ships, economic, T-3'+ 



in shallow water, model, 640 

 power for, estimate of, 132 

 vibration in machinery for, full-scale, 518, 

 547, 551 

 Propulsion tests, turbulence-stimulating devices 



for, model, 662 

 Propulsive performance, with bosses, full-scale 

 and model, 403 

 with struts, full-scale and model, 403 

 PT boats. See Patrol vessels. 

 Publications. See Reports. 



Puget Sound vibrograph, calibration and perform- 

 ance of, 693 

 Pump design, analysis of, 621 

 Putty gage, 563 



Quartz gage, for measuring undervrater explosion 



pressures, 523 

 Quartz plates, in transmitters, T-148 



Reed gage, 563 

 design of, 654 

 performance, 603 



record analysis, 6o3 

 theoretical study of, 61 3 

 Reflecting wall, wave destruction at, 296 

 Reinforced concrete; effect of bombs on, T-1 65 

 Reinforced tubes, under external pressure, 262 

 Relaxation oscillations, 564 

 Remodeling fighting ships, T-82 

 Repair Ships. See Auxiliaries. 

 Reports, of David Taylor Model Basin, index of, 

 597 

 preparation of, 6l 6 

 typing and layout of, R-225 

 Rescue chamber, hydrostatic pressure tests on, 

 model, 315 

 hydrostatic pressure tests on, YRC-6, 631 

 strength of YRC-6, 631 

 strength of, model, 315 

 towing of, model, 288 

 Rescue work, air-sea, homing device for, 659 

 Resin, for embedding, 625 



Resistance, effect of condenser scoops on, model, 

 R-43 

 effect of restricted channel on, 46o 

 effect of roughened hull on, model, T-67 

 effect of shallow water on, model, 408, 41 4, 640 

 form, of ships, model, 392 

 frlctlonal, 193, 227, 267, 275, 333 

 determination of, methods of, 663 

 due to lapped butts, 73 

 due to temperature, 267, 333 

 effect of roughness on, 729 

 effect of transverse curvature on, 689, 726, 



729 

 equations for, 267 



reduction of, by hull design, model, II7 

 research progress report for ATTC, 726 

 theory for smooth flat plate vjith turbulent 

 boundary layers , 726 

 minimum, in hulls, T-69 

 of armor, 24, 463 

 of battleships, model, 429 

 of body of revolution, 726 



