76 



SUBJECT INDEX 



Plates (Continued) 



in assemblies, strength of, 452 

 pressure on, 527 

 quartz, in transmitters, T-148 

 steel, energy absorption of, R-296 

 fracture of, R-271 

 plastic strain and deflection tests on, 



R-66, R-142 

 rupture of, R-265, R-276 

 stiffened, stability of, 402 [T-8] 

 stressed, load capacity of, T-76 

 under lateral impact, T-135 

 Plating, strength of, under edge com- 

 pression, 469 

 Plywood, for ship propellers, R-206 

 Polynomial equation, method for calcula- 

 tion of roots of, 568 

 Polyvinyl alcohol, sensitization of, for 



printing plates, T-179 

 PONTCHARTRAIN, USCGC, vibration data for, 



full-scale, R-294 

 Portable strain gage, 272, 292 

 Power, for ship propulsion, estimate of, 

 132 

 See also Effective horsepower; Shaft 

 horsepower. 

 Power data, for NEW MEXICO (BB40), full- 

 scale and model, R-139 

 Power supply, d-c, for laboratory work, 

 526 

 d-c, in electronic development work, 

 526 

 regulated, 561 

 Prandtl micromanometer, improvement of, 



T-162 

 Pressure, blast, measurement of, R-282 

 engine, electrical device for indicating, 



559 

 in fluid, instrument for determining, 



T-117 

 on bubbles, 510 

 on cylindrical tubes, 309 [T-5], 356, 



366 [T-6], 385, 396 

 on gable and hip roofs, T-ll6 

 on ship model, T-53 

 Pressure distribution, over bodies of 



revolution for axial flow, T-220 

 Pressure gage, 479, 523; R-157, R-202, 

 R-282 



Pressure gage (Continued) 



calibration of, R-269 

 Pressure vessels, rules for construction of, 



329, 356, 387 

 Pressure waves, around sphere of gas, 517 

 produced by blasting and gunfire, T-102 

 PRESTON (DD327), modulus of elasticity of 



steel from, full-scale, 318 

 Printing, photolith method, T-138 



photomechanical methods, T-43 

 Printing plates, sensitization of coating 



for, T-179 

 PRINZ EUGEN, launching data for, model, T-100 

 Prohl's method, for calculating flexural 

 critical frequencies of ships, 582 

 Propagation of sound waves, anomalies in, 



T-41 

 Propeller, Buonocore, T-1 63 

 Propeller blades, interference tests on, 



model, 375 

 Propeller design, Betz-Prandtl vortex theory, 

 T-15 

 and cavitation, T-l8, T-23, T-24 

 Propeller efficiency, T-131 

 Propeller sections, T-l8, T-23 

 Propeller struts, effect of, on steering of 



twin-screw ship, 331 

 Propeller tests, 57, 187, 375. 505 

 analysis of, T-19 



effect of scale of model on, T-37, T-54 

 full-scale, for SS TANNENBERG, T-91 

 model, for DELAWARE (BB28), 66 

 Propeller thrust, deduction of, 428 



measurement of, T-58, T-59 

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

 T-24 

 efficiency of, 61 



interaction of, with hull, model, 470 

 mass moment of inertia of, 307 

 Moldwood, R-206 

 oppositely rotating, T-114 

 partly submerged, on sea-sled, model, R-132 

 regenerative, tests of model of, 27 

 singing of, T-123 

 theory of, T-36 

 thrust distribution in, T-134 

 torque on, 513; T-36 

 Propulsion, as affected by shaft struts and 

 spectacle frames, 256 



