SUBJECT INDEX 



Resistance [Continued] 



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



of cable for towing, ^l8, 666 



of current -indicator buoys, model, 667 



of hull, stepped-tjrpe , model, 669 



of hydraullcally-rough surfaces, 726 



of motor boats, V-bottom model, R-35, R-U7 



of plates to undervjater explosions, 6lO, 6^^ 



of ships, in canal locks, model, 189 



in shallow water, T-56, T-BU 

 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 

 of water-filled cylinder under pressure, T-186 

 prediction of, by cavltatlng method, 668 

 reduction of, by air film, R-13'' 

 residuary, of ships, 392 



wave, of immersed body of revolution, T-23U 

 of ships, 710 

 Resistance coefficient, tabulation of, 57^ 

 Resistance distant -reading apparatus, 3'+0 

 Resistance gage, 523 



See also Strain gage, vflre-reslstance. 

 Resistance-test data, analysis of, 686 



method of calculating effective horsepower 

 of ships from, 576 

 Resistance tests, effect of turbulence stimu- 

 lators on, J2^ 

 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 

 Restricted channel, effect of, on resistance, 46o 



performance of model ships in, 579) 6oi 

 Restricted channel tests, for the Panama Canal, 



579, 6oi 

 Retardation of vessel after launching, R-2U, R-27; 



T-100, T-105, T-182 

 Reynolds numbers, in relation to model ship tests, 



663; 'J!-^9^■ 

 Rigging insulators, flberglas 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 



vrith radial elastic support, theoretical and 

 experimental investigation of, 704 

 Ring dynamometer, development of, 599 

 Ring-type pickup extensometer, T-1 6U 

 River vessels, Yangtze, model tests of, 586 

 Robot II camera, lighting banks for, 688 

 Rockets, aircraft. See aircraft rockets. 



antisubmarine. See antisubmarine rockets. 

 Roll recorder, 1 1 6 

 Roll stabilization, power cost of, on CONTE DI 



SAVOIA, full-scale, 1+30 

 Rolling, damping of, model, 442 



factors affecting, 348 



in waves , 301 , 303 



measurement of, model, 433 



of cruisers, model, 27O, 295 



of proposed 1935 battleship hull, 37*+ 



reduction of, model, R-13O 



testing of models in, 433 

 Rolling experiments, on aircraft c&rriers, model, 

 8, 13, 18 



on battleship, model, 6 



on crane ship, model, 69 



on passenger liner, model, 7 



Roof designs, comparison of, T-ll 6 



Rosette. See type of rosette, e.g., Strain- ^ 



rosette. , 



Rotating shafts, measurement of stresses in, R-54 



Roughened ship model, tests with, T-67 



Roughness, effect on skin friction resistance, 729 



Roughness allowances, determination of, 57^, 663 1 



- 1 

 with Schoenherr friction formula, R-56 j 



Roughness recorder, TMB, 726 



Rubber band, for displacement gage, 65I 



Rudder forces, calculation of, T-52 



Rudder tests, for cruiser model, 214 | 



for PARRAGUT (DD348) , full-scale and model, 397 

 Rudders, comparative performance of, on SALINAS 

 (A019), full-scale, 350 



design of, T-83 



horizontal stern, vflth Submarine S3, model, R-1 33 



resistance of, with PATOKA (A09), model, 268 

 Rupture, of steel plates, 6l1; R-265, R-276 

 RUSSELL (DD414), noise survey of, full-scale, R-1 9 



Safety harness, for aircraft pilots, strength of, 63 



