89 



SUBJECT INDEX 



Explosive load [Continued] 



resistance of steel to, R-30 

 Explosives, primers, T-49 

 Extensometers. See Strain gage. 

 External pressure, on cylindrical tubes, 

 309 [T-5] 

 on unfired pressure vessels, 329, 356, 387 

 "E" Boat, German, apparent slip and tactical 

 diameters of, full-scale, 628 



FAILURE, of medium steel, R-207 

 Palling body, stability of, R-42 

 FARRAGUT (DD348), rudder tests for, full-scale 

 and model , 397 

 turning movements of, full-scale and model, 

 336, 397 

 Fathometer, catamaran float arrangement for 



towing, R-340 

 Fatigue, in amphibian tractor grousers, 664 

 Fatigue strength, of materials, T-1 04, T-1 22 



of submarine hulls, T-1 89 

 Fatigue tests, 474 



on amphibian tractor grousers, 664 

 Federal Shipbuilding and Dry Dock Company, 

 tanker, single -screw, model tests of, 

 585, 620 

 Ferry, 290-foot, power characteristics of, 

 model, 695, 695A, 695B 

 450-foot twin-screw, model tests of, 737 

 Fighter BS1 , experiments with model of, 33 

 Fighting ships, remodeling of, T-82 

 Figures, preparation of, R-l 28 

 Filter, electrical, in transducers, 521 

 Firing tests, of ELLYSON (DD454), full-scale, 



R-57 

 Fittings, for valves, hydrostatic tests of, 



637, 638 

 Fleet tanker. See Tanker. 



Flettner wind rotors, for ship propulsion, 1 08 

 Flight-deck planking, strength tests on, 736 

 Float, catamaran, model, R-251 , R-340 



displacement, for supporting submerged loads, 



573 

 5000-pound single, tests on, model, 14-2 

 for astern fueling, R-366 

 planing, design and performance of, model, 

 5 HO 

 for supporting submerged loads, 573 



Float [Continued] 



planing, water-spout scoop for, 768 

 Float problems, solution of, 540 

 Floating drydock. See Drydock, floating. 

 Floats, airplane, model, 222 

 airplane type of step in, 438 

 seaplane. See Seaplane floats. 

 Flow, about airfoil, photographs of, model, 557 

 about parallel cylinders, 485 

 about ships and ship models, instruments and 



methods for measuring, 487 

 axial, pressure distribution for, T-220 

 axially symmetric, about elongated bodies of 



revolution, fG\ 

 cavitation and separation, influence of 



Reynolds number on, T-233 

 displacement, around hull, model, T-85 

 investigation of, on ship model, T-53 

 potential, forces and moments on a body in, 



T-241 

 theory of, T-48 

 See also Airflow. 

 Flow lines, delineation of, 535 

 of planing hull , model , 669 

 See also specific ship or model test. 

 Fluid, direction of velocity in, instrument for 

 determining, T-1 1 7 

 pressure in, elastic-tube gage for measuring, 

 627 

 instrument for determining, T-1 1 7 

 FLUSSER (DD368), service strain on, full-scale, 



467 

 Flying boats. See Seaplane floats; Seaplane 



hulls; Sea-sled. 

 Foamglas, reduction in buoyancy when submerged 



deeply in water, R-1 96 

 Foettinger, torque converter, 5^0 



water brake , 71 1 

 Forced-vibration calculation, of hull vibration, 



739 

 of hull vibration, by digital process, 715 

 Forces and moments, on body in potential flow, 

 T-241 

 on ship appendages, six-component dynamometer 

 for measuring, 6Q2 

 Form resistance of ships, 392 

 Formation flying, saving of power in, T-239, 

 T-240 



