SUBJECT INDEX 



Reports [Continued] 



typing and layout of, R-225 

 Rescue chamber, hydrostatic pressure tests on, 

 model , 31 5 



hydrostatic pressure tests on, YRC-6, 631 



strength of, model, 315 



strength of YRC-6, 631 



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, '460 



effect of roughened hull on, model, T-67 



effect of shallow water on, model, 1+08, 414, 



form, of ships, model, 392 

 frictional, 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, 117 



research progress report for ATTC, 726 



theory for smooth flat plate with turbu- 

 lent boundary layers, 726 

 minimum, in hulls, T-69 

 of armor, 24, 463 

 of battleships, model, 429 

 of body of revolution, 726 



of bombs and fuel tanks, reduction of, T-21 5 

 of cable for towing, 41 8, 666 

 of current -indicator buoys, model, 667 

 of hull, stepped-type , model, 669 

 of hydraulically-rough surfaces, 726 

 of motor boats, V-bottom model, R-35, R-47 

 of plates to underwater explosions, 6l0, 6ll 

 of ships, in canal locks, model, 1 89 



in shallow water, T-56', T-84 

 of steel, to shock loads, R-30 

 of structures, to explosive load, R-30 

 of towed targets, model, 595 > 630 

 of trawler models , T-75 

 of 2-foot model submitted by Prof. K. 

 Davidson, 333 



Resistance [Continued] 



of water-filled cylinder under pressure, T-l86 

 prediction of, by cavitating method, 668 

 reduction of, by air film, R-1 31 

 residuary, of ships, 392 

 viscous and wave, separation of, 772 

 wave, of immersed body of revolution, 758; 

 T-234 

 of ships, 710 

 Resistance coefficients, tabulation of, 576 

 Resistance distant -reading apparatus, 340 

 Resistance gage, 523 



See also Strain gage, wire -resistance. 

 Resistance-test data, analysis of, 686 



method of calculating effective horsepower 

 of ships from, 576 

 Resistance tests, effect of turbulence stimula- 

 tors on, 724 

 turbulence stimulators for, 662, 726 

 Resonance, nonlinear, 558 



Re sonant -bridge carrier system, for condenser- 

 type pressure gage, 625 

 for condenser-type pressure gage, instruction 



manual for, 680 

 for measurement of capacitance changes, 626 

 Response, of ball-crusher gage, 75"! 



of floating targets, to underwater explosions, 

 749 

 Restricted channel, effect of, on resistance, 

 460 

 performance of model ships in, 579, 601 

 Restricted channel tests, for the Panama Canal, 



579, 601 

 Retardation of vessel after launching, R-24, 



R-27; T-100, T-105, T-l 82 

 Reynolds numbers, influence on cavitation, T-233 



in relation to model ship tests, 663; T-l 94 

 Rigging insulators, fiberglas micarta, tensile 

 tests of, 593 

 porcelain, tensile tests of, 587 

 Rigid-frame knees, strength of, R-53 

 Rigid-frame models, tests of, R-63 

 Ring, elastic stresses in, T-226 



with radial elastic support, theoretical and 

 experimental investigation of, 704 

 Ring dynamometer, development of, 599 

 Ring-type pickup extensometer , T-l 64 

 River vessels, Yangtze, model tests of, 586 



