34 



R- SERIES 



39. A Photographic Study of Small-Scale Underwater Explosions. Aug 1941. 12 

 pp. , 22 figs. 



4-1. Turning Tests of 25-Foot Model Motor Torpedo Boats, Model Nos. 10-G, 



11-G, and 1 2-G at Norfolk Navy Yard, June 20-24, 1941, by K.S.M. Da- 

 vidson and W.C. HUgli, Jr. Aug 1941. 35 PP- , 20 figS. Report I5I+-B, Ex- 

 perimental Towing Tank, Stevens Institute of Technology . 



42. Stability of a Streamlined Body Palling through a Fluid with Uniform 



Speed, by L. Landweber. Sep 1941. 4 pp., 1 fig. 



43. The Effect of the Plow of Water through Condenser Scoops on the Resis- 



tance of a Destroyer Model, by C.E. Janes. Sep 1941. 10 pp., 13 figs. 



46* A Depth Charge Direction Indicator - Developed by D. Bancroft and G.W. 

 Cook. Oct 1941. 8 pp., 3 figs. 



47. Tests of Twenty Related Models of V-Bottom Motor Boats, EMB Series 50, 



by K.S.M. Davidson and Anthony Suarez. Oct 1941. 68 pp., 6l figs. 



Report 170) Experimental Towing Tank, Stevens Institute of Technology. 



48. The Value of Mathematics in Research at the David W. Taylor Model Basin, 



by Dr. N. Minorsky. Dec 1941. 7 pp. 



49. Torpedo Protection Systems - Preliminary Data on the Underwater Shock 



Wave. Dec 1941. 12 pp., 6 figs. 



50. Launching Data for the USS AUK (AM57) and Photographic Methods Used in 



Obtaining Them, by J.G. Thews. Dec 1941. 12 pp., 10 figs. 



51 . Electronic Methods of Observation at the David W. Taylor Model Basin. 



Part 3 - A Low-Frequency Transient Detector, a Depth Charge Direction 

 Indicator, and an Electronic Voltage Regulator, by Ens. G. Robert 

 Mezger. Dec 1941. 17 pp., 6 figs. 



53. The Strength of Rigid-Frame Knees, by Dr. D.F. Windenburg. Jan 1942. 14 



pp. , 27 figS. A paper presented before the Washington Chapter of the American Society 

 of Mechanical Engineers, 11 Dec 19U1. 



54. Electronic Methods of Observation at the David W. Taylor Model Basin. 



Part 2 - Measurements of Steady and Alternating Stresses in Rotating 

 Shafts, by W.F. Curtis and W.J. Sette. Jan 1942. 12 pp., 3 figs. 



56. Tentative Roughness Allowances for 1942 for Use with the Schoenherr Fric- 



tion Formula. Mar 1942. 3 pp. , 1 fig- 



57. 5-Inch 38-Caliber Gun Foundations on Destroyers - Progress Report De- 



scribing Results of Tests during Structural Gun Firing Trials of USS 

 ELLYSON (DD454). Mar 1942. 3 pp., 1 fig. 



62. Electronic Methods of Observation at the David W. Taylor Model Basin. 



Part 4 - An Acoustic Analyzer, by Ens. R.W. Roop, USNR. May 1942. 40 

 pp. , 24 figs. 



63. Test of Rigid-Frame Models - Progress Report, by Comdr. W. P. Roop, USN. 



Jul 1942. 9 pp., 6 figs. 



