R- SERIES 



kl. Turning Tests of 25-root Model Motor Torpedo Boats, Model Nos . lO-G, 

 11 -G, and 12-G at Norfolk Navy Yard, June 20-2ii-, 19^1, by K.S.M. 

 Davidson and W.C. E-ugll, Jr. Aug I9UI. 55 pp., 20 figs. 



Report 154-B, Experimental Towing Tank, Stevens Institute of Technology. 



k2. Stability of a Streamlined Body Falling Through a Fluid with Uniform 

 Speed, by L. Landweber. Sep IS^J-l. k pp., 1 fig. 



k^. The Effect of the Flow of Water through Condenser Scoops on the Resis- 

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



U5. Electronic Methods of Observation at the David W. Taylor Model Basin. 



Part 1 - Dynamic Actions in Eull Struct\ire, by Ens. G. Robert Mezger. 

 Oct 19kl. 23 pp., 12 figs. 



h6. A Depth Charge Direction Indicator - Developed by D. Bancroft and G.¥. 

 Cook. Oct I9UI. 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 19^1. 68 pp., 6I figs. 

 Revised Edition, Mar 19^9. 10? pp., 9I figs. 



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

 by Dr. N. Minorsky. Dec 19^4-1. J pp. 



U9. Torpedo Protection Systems - Preliminary Data on the Underwater Shock 

 Wave. Dec 19^+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 19^1. 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 19^^-1. I7 pp., 6 figs. 



53. The Strength of Rigid-Frame Knees, by Dr. D.F. Windenburg. Jan 19i(-2. 



l4 pp . , 27 figs . A paper presented before the Washington Chapter of the American Society 

 of Mechanical Engineers, 11 Dec 1941. 



5^. 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. Ciirtis and W.J. Sette. Jan 19^+2. 12 pp., 5 figs. 



II -3 



