^3 



R- SERIES 



39. A Photographic Study of Small-Scale Underwater Explosions. Aug 194-1. 

 12 pp. , 22 figs. 



^■^ . 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, 19^1 , by K.S.M. 

 Davidson and ¥.C. Hugli, Jr. Aug 194-1. 35 PP- > 20 figs. Report is-i-B, 



Experimental Towing Tank, Stevens Institute of Technology. 



4-2. 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 Flow 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.V.'. 



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., 61 figs. 

 Rev. ed. Mar 1949. 1 07 pp., 91 figs. 



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



by Dr. N. Minorsky. Dec 194-1. 7 pp. 



4-9. Torpedo Protection Systems - Preliminary Data on the Underwater Shock 

 Wave. Dec 194-1. 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 1941. 



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



Part 2 - Measurements of Steady and Alternating Stresses in Rotating 

 Shafts, by W.P. 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. superseded by Report 576. 



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. 



