SUBJECT INDEX 



Freighter, Great Lakes, resistance tests of, 



model, 6l8 

 Frequency, entrainment of, 558 



of hull vibration, calculation of, 582 



full-scale, 263 

 of skegs, on WASHINGTON (BB56), full-scale, 

 R-22 

 Frequency deviation methods, for measuring 



mechanical changes, R-79 

 Friction formula, Schoenherr, roughness al- 

 lowance for use with, R-56 

 Frictional resistance, 193, 227, 267, 275, 333 

 due to lapped butts, 73 

 equations for, 267 



reduction of, by hull design, model, 117 

 Frictional resistance coefficients, tabulation 



of, 576 

 Frictional values, determination of, 360 

 Froude naval experimental station, estab- 

 lishment of, T-8l 

 Froude 's law, as applied to ship model tests, 



T-1 94 

 Fueling floats, model-basin tests of, R-366 



Gable roof, pressure distribution on, T-1 1 6 

 Gage. See specific gage. 

 Gas bubbles, cataphoresis of, T-1 37 

 damping of vibration by, T-1 58 

 in liquids, industrial uses of, R-83 

 size of, T-1 08, T-110, T-lll 

 speed of rise, T-1 46 

 spherical, vertical motion of, 510 

 vibration of, T-109 

 See also Gas globe. 

 Gas bubbles and droplets, in liquids, size 



of, T-1 08 

 Gas expulsion, by supersonic waves, T-1 42 

 Gas globe, displacement of, in water, T-1 71 

 effect of gravity on, R-182 

 oscillation of, In underwater explosions, 



T-209 

 pressure changes in, T-1 59 

 pressure on, 520 

 underwater, 512, 517 

 Gas turbines, bibliography, T-1 77 

 cooling of, T-1 98 

 development of, T-1 77 

 entropy diagrams for, T-94 



Gases, disperse, T-1 1 2, T-1 1 3, T-114, T-1 1 5 



disperse, colloidal physics of, T-1 25 

 Generator, linear-sweep, 483 

 German, ex-, Destroyers Z-37 and Z-39, hydro- 

 static tests of steam valves from, 596 

 German "e" Boat, apparent slip and tactical 



diameters of, full-scale, 628 

 German ship's, launching of, full-scale and 



model, T-1 00, T-1 05 

 German SS NJASSA, test station aboard, T-63 

 Girders, box, effective width in, T-50 

 stress on, T-28 



warping of, with off-center welds, T-93 

 See also Beams. 

 Globe. See Gas globe. 

 Goteborg Model Basin, electrical equipment of, 



T-l 75 

 Graphs, preparation of, R-128 

 Gravity, effect of, on underwater gas globes, 



R-182 

 Great Lakes freighter, resistance tests of, 



model, 6l8 

 Grouting, use of dry mortar for, 538 

 Gun firing trials. See Firing tests. 

 Gun foundation, on destroyers, full-scale, 

 R-57 

 stress on, T-2 

 GUNARD, hull of, model, 165 

 Gunboat, river, model, 82 

 Gunfire, shock waves produced by, T-1 02 

 Hamburg Model Basin, development of ship model 

 testing at, T-90 

 tests in water tunnel, T-25 

 HAMILTON (DD141 ), propulsion tests on, full- 

 scale and model, 390 

 service strain, full-scale, 467 

 shaft bearings on, full-scale, 360 

 shaft bossing of, vibration of, full-scale, 



305 

 thrustmeters for, full-scale, 370 

 vibration data for, full-scale, 372 

 wind effects on, model, 312 

 HAMMANN (DD412), noise survey of, full-scale, 



R-12 

 Hand strain gage, 285, 292 

 Hatch seal locks, explosion or blast tests on, 



T-1 91 

 HAWAII (CB3), tactical data for, full-scale, 

 R-306 



