93 



SUBJECT INDEX 



Passenger-cargo vessel, model tests of, 702 



twin-screw, model tests of, 7^^ 

 Passenger liner, rolling experiments on, model, 7 

 rudder force test of, model, 607 

 775-foot, model tests of, 598 

 Passenger ship, 88o-foot, model tests of, 623 



twin-screiv, 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, 58O, 722 

 Passing device, for passing mine mooring cables, 



model, R-143 

 PATOKA (AO9), rudders of, model, 268 

 Patrol vessels, diesel engines for, 50^ 



EAGLE Class, moment of wind on, model, 15 

 Pendulum oscillations, forced, T-192 

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



turret foundation of, full-scale, design of, 207 

 Periscope, submarine, v/ake of, model, R-152 

 Periscope tubes, modulus of elasticity of 



materials for, R-1 6 

 PHOENIX (CLl|6), noise survey of, full-scale, R-3 



service strain on, full-scale, 467, 468 

 Photoelectric time-interval meter, for instan- 

 taneous velocity measurements, R-21'l 

 Photogrammetry, wave research by, T-20U 

 Photographic methods, for determining angle 

 of heel, full-scale and model, 397 

 for obtaining launching data, full-scale, R-50 

 for printing templates, R-3T3 

 for recording behavior of steel diaphragms, 

 R-66 

 Photographic study, of flow about an airfoil, 

 model , 557 

 of gas globe under vrater, 512 

 of undervrater explosions, 520; R-39. R-65 

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

 Photography, high-speed, R-3T8; T-IO7, T-T90 

 high-speed, for recording explosion phenomena, 

 T-121 

 schlieren method, T-1 2T , T-156 

 time-delay circuit for, 525 

 time-recording device for, R-3t8; T-15'+ 

 twenty-lens motion-picture camera for, R-3'•^5 

 mlcroflash, time-delay circuit for, 525 

 slow-motion, T-TJ-9 



underwater, lighting equipment for, 688 

 use of, in deflection measurements* T-2n 



Photollth printing method, T-T38 

 Photomechanical printing, T-43 

 Piezoelectric gage, 523; R-1 57 



calibration of, R-244, R-246, R-21+8, R-269 

 Piezoelectric measuring method, in ballistics, 



T-120 

 Pine, white, reduction in buoyancy v;hen submerged 



deeply in v;ater, R-1 96 

 Pitch-damping moment, of midget submarine, German 



■V-80, from wind-tunnel tests, T-227 

 Pitch recorder, calibration of, ^^6 

 Pitching experiments, on cruiser, model, 4 

 Pitot tube, cylindrical, 487; T-172 

 spherical, 487; T-172 

 T3-hole, 187, 583 

 Planing float, design and performance of, model, 

 5U0 

 for supporting submerged loads, 573 

 used as astern-fueling float, R-366 

 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, 

 U90, 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, 6lO, 611 

 buckling of, T-31 , T-32, T-64, T-66, T-78 

 compressed, stability problems of, T-79 

 deflection of , 506, 6lO, 61I; R-66, R-li+2 

 deformation of, 1+90, 491, 492, 509, 527. 532, 

 611; R-202, R-244, R-248, R-254, R-265, 

 R-279, R-280 

 effect of joint eccentricity on strength of, 440 

 effect of stiffeners on, 452; T-31 , T-78 

 energy absorption of, R-248, R-280, R-296 

 flat, cavitation flow about, T-224 

 critical strength 'of, R-1 

 frictional resistance of, 689 

 tensile strength of, 446 

 free-edge, inpact measurements on, 488- 

 fused-quartz and plastic, resistance to under- 

 water explosions, R-296 

 in assemblies, strength of, 452 

 pressure on, 527 



