SUBJECT INDEX 



Paravanes, 533 

 Paris Turning Basin, T-222 

 Passenger-cargo vessel, model tests of, 702 

 SS 'INDEPENDENCE, standardization trials of, 



full-scale and model, 771 

 twin-screw, model tests of, yi 4- 

 Passenger liner, rolling experiments on, 

 model, 7 

 rudder force test of, model, 607 

 775-foot, model tests of, 598 

 Passenger ship, 880-foot, model tests of, 623 



twin-screw, model tests of, 602 

 Passenger-trailer ship, twin-screw, maneuvering 

 tests of, model, 698 

 twin-screw, model tests of, 578, 634, 639 

 wake survey of, model, 580, 722 

 Passing device, for passing mine-mooring 



cables, model, R-1 43 

 PATOKA (A09), rudders of, model, 268 

 Patrol vessels, diesel engines for, 501 



EAGLE Class, moment of wind on, model, 15 

 Pendulum oscillations, forced, T-192 

 PENNSYLVANIA (SS) tanker, standardization 



trials of, full-scale and model, 748 

 PENSACOLA (CA24), rolling of, full-scale, 31 6 

 turret foundation of, full-scale, design 

 of, 207 

 Periscope, submarine, wake of, model, R-1 52 

 Periscope tubes, modulus of elasticity of 



materials for, R-1 6 

 PHOENIX (CL46), noise survey of, full-scale, 

 R-3 

 service strain on, full-scale, 467, 4-68 

 Photoelectric time-interval meter, for instan- 

 taneous velocity measurements, R-21 4 

 Photogrammetry, wave research by, T-204 

 Photographic methods, for determining angle 

 of heel, full-scale and model, 397 

 for obtaining launching data, full-scale, 



R-50 

 for printing templates, R-31 3 

 for recording behavior of steel diaphragms, 

 R-66 

 Photographic study, of flow about an airfoil, 

 model, 557 

 of gas globe under water, 51 2 

 of underwater explosions, 520; R-39, R-65 

 of underwater shock waves, R-77> R-203 



Photography, high-speed, R-31 8; T-107, T-190 

 high-speed, for recording explosion phenom- 

 ena, T-121 

 schlieren method, T-121, T-I56 

 time-delay circuit' for, 525 

 time-recording device for, R-31 8; T-154 

 twenty-lens mot ion -picture camera for, R-345 

 microflash, time-delay circuit for, 525 

 slow-motion, T-149 



underwater, lighting equipment for, 688 

 use of, in deflection measurements, T-211 

 Photolith printing method, T-138 

 Photomechanical printing, T-43 

 Piezoelectric gage, 523; R-1 57 



calibration of, R-244, R-246, R-248, R-269 

 Piezoelectric measuring method, in ballistics, 



T-120 

 Pine, white, reduction in buoyancy when sub- 

 merged deeply in water, R-1 96 

 Pitch-damping moment, of midget submarine, 



German V-80, from wind-tunnel tests, T-227 

 Pitch recorder, calibration of, 11 6 

 Pitching, of ships, model, T-232 

 Pitching experiments, on cruiser, model, 4 

 Pitching tests, model, T-232 

 Pitot tube, cylindrical, 487; T-172 

 spherical, 487; T-172 

 13 -hole, 487, 583 

 Planing float, design and performance of, model, 

 540 

 for supporting submerged loads, 573 

 used as astern-fueling float, R-366 

 water-spout scoop for, 768 - 

 Planing surfaces, curves for, R-80 

 Plastic behavior, of steel, R-243 

 Plastic bodies, projectiles fired through, T-1 07 

 Plastic deformation, of plate, under pressure, 

 490, 532; R-279, R-280 

 of steel, medium, 503 

 Plastic sheets, stress-strain characteristics 



of, R-74 

 Plastic strain, of medium steel, 503 



tests of, on steel plates, R-1 42 

 Plates, air-backed, resistance to underwater 

 explosions, 6l0, 6n 

 buckling of, T-31 , T-3'2, T-64, T-66, T-78 

 compressed, stability problems of, T-79 



