8it 



SUBJECT INDEX 



Destroyer [Continued] 



HUGHES (DD^IG), noise survey of, full-scale, 



R-10 

 LANG (DD399), noise survey of, full-scale, R-23 

 MAHAN (DD36'+) , service strain on, full-scale, 



i+67 

 metacentric height of, model, 287 

 MUGPORD (DD389), noise survey of, full-scale, 



R-l| 

 MUSTIN (DDU13), noise survey of, full-scale, 



R-lU 

 PRESTON (DD327), modulus of elasticity of steel 



from, full-scale, 318 

 RUSSELL (.W^lk), noise survey of, full-scale, 



R-19 

 standardization trials, full-scale and model, 



19, 28 

 transom stems on, tests of, model, 339 

 TUCKER (DD374), service strain on, full-scale, 



I167 

 WOLF, elasticity tests on, full-scale, T-^S 

 WORDEN (DD352), standardization trials, full- 

 scale and model, 403 

 Destroyer tenders. See also auxiliaries. 

 Detonating blast-type explosions, T-T 68 

 DH'/EY (DD3'J-9), service strain on, full-scale, k6j 

 Diaphragm blast gage, R-282 

 Diaphragm bulkheads, 280 



Diaphragm pressure gage, condenser-type, theory 

 and development of, 625 

 condenser-type, instruction manual for, 680 

 lovf-pressure type, theory and development of, 

 665 

 Diaphragms. See Plates; Hammer-box diaphragms. 

 Diazotype, advantages of, T-43 

 Diesel engine, crankcases of, 5 01 

 'dynamic strains in, R-^^^■ 

 for submerged subnarlnes, T-197 

 Differential equations, 53U, 3k-6, 558, 564 

 for motion in viscous fluid, 267 

 for response to impact, 48l 

 integration of, R-1 1|0 

 Differentiator, for ship calculations, T-1 21 

 Digital process, for calculation of amplitudes 

 of hull vibration, 715 

 for calculation of flexural modes of hull 

 vibration, 706 

 preparation of data for, 632 

 Direct-coupled amplifier, 64'!; R-86 



Direction indicator, of a depth charge, R-46, R-JI 

 Direction of velocity in fluid, instrument for 



determining, T-117 

 Disperse gases, T-112, T-n3, T-IIU, T-n5 



colloidal physics of, T-1 25 

 Displacement boats, testing of, model, 153 

 Displacement float, for supporting submerged 



loads, 573 

 Displacement flow, around hull, T-85 

 Displacement gage, retraction-type, applications 

 of, 651 

 retraction-type, design and construction of, 651 

 Displacement measurements, retraction-type gage 



for, 651 

 Distant -reading apparatus, 3^+0 

 Ditto process, instructions for, R-356 

 Diverters. See Paravanes. 

 Diving bell. See rescue chamber. 

 Documentation, of technical literature, T-l8l 

 DOVmES, reduction of resistance of, model, R-1 31 

 Drag. See Resistance. 

 Dravo Corporation, river towboat, model tests of, 



656 

 Drydock, floating, forces on stem-gate operating 

 mechanism, model, R-31 

 floating, model, 7*+ 

 DupllMAT process, instructions for, R-356 

 Dye-diffusion method, for velocity measurement in 



rater, 670, 700 

 Dynamic load, measurement of, R-15'+; T-65 



on structures, R-30 

 Dynamic load factor, 572 

 Dynamic .stability, of midget submarine, German 



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

 Dynamical analogues, integration by, R-lUO 

 Dynamometer, ring, development of, 599 



six-component', for testing ship appendages, 692' 



EAGLE Class patrol boats, moment of vjind on, 



model, 15 

 Eccentricity, Joint, effect of, on strength of 



plates, 440 

 Eddies, 485 



separation of, T-1 84 

 Eddy resistance, 193, 227, 267, 275, 333 

 Edge compression, strength of plates under, 469 

 Effective horsepower, methods of predicting, 57^ 

 Effective horsepower of ships. See specific ship 



or model test. 



