30 



REGULAR SERIES 



572. The Response of a System with a Single Degree of Freedom to a Blast Load, 



by M. Levenson and B. Sussholz. Dec 194-7- 24 pp., 15 figs. 



573. Analysis of Test Data on the Performance Characteristics of Planing and 



Displacement Floats for Supporting Submerged Loads, by P. Eisenberg. 

 Oct 1947. 58 pp. , 44 figs. 



576. The Prediction of the Effective Horsepower of Ships by Methods in Use 



at The David Taylor Model Basin, by M. Gertler. Sep 1947- 33 pp., 4 

 figs. 2nd ed. Dec 1947, 33 PP- , 5 figs. 



577. Tests of TMB Model 3867 Representing the Atlantic Refining Company Tank- 



er Design T2-SE-A1 , by A.Q. Aquino. Jul 1947- 14 pp., 10 figs. Dis- 

 tributed only upon authorization of Atlantic Refining Company. 



578. Tests of TMB Model 4013 Representing the Sun Shipbuilding and Dry Dock 



Company Proposed Twin-Screw Passenger and Trailership, by A.Q. Aquino. 



Jul 1947- 15 PP- , 9 figS. Distributed only upon authorization of Sun Shipbuilding 

 and Dry Dock Company. 



579. Restricted Channel Tests for the Panama Canal. Status of One-Way and Two- 



Way Traffic Studies As of 15 July 1947, by C.A. Lee, C.E. Bowers, and 

 F.D. Bradley. Jul 1947- 9 PP., 2 figs. 



580. Wake Survey in Way of Propeller Disk on TMB Model 4013 Representing the 



Sun Shipbuilding and Dry Dock Company Proposed Twin-Screw Passenger 

 and Trailership, by W.H. Norley. Jul 1947- 3 PP- , 1 fig. Distributed only 



upon authorization of Sun Shipbuilding and Dry Dock Company. 



581. Theory of the Belt-Driven Torsiograph, by Alice R. Welch. Jul 1947- l8 



pp. , 8 figs. 



582. Calculation of Flexural Critical Frequencies of Ship Hulls by Prohl's 



Method, by E.J. Adams and Alice R. Welch. Jul 1947- 8 pp., 2 figs. 



583. Wake Survey of the Mark 13 Torpedo, by H.A. Eggers. Jul 1947- 27 pp., 



16 figs. 



584. Forces Measured in a Towline during Towing Tests of a Series G-40 High- 



Speed Sled Target, by G.B. Mayfield. Aug 1947- 6 pp. 



585. Tests of TMB Model 4030 Representing the Federal Shipbuilding and Dry 



Dock Company 600-Foot Single-Screw Tanker, by I. Goldman. Jul 1 9^+7- 



29 PP- , 17 figS. Distributed only upon authorization of Federal Shipbuilding and Dry 

 Dock Company. 



586. Tests of' TMB Models 4005, 4005-1 , and 4006 Representing Cox and Stevens 



160-Foot and 270-Foot Yangtze River Vessels, by M. Gertler. Jul 1947- 



29 PP" , 23 figS. Distributed only upon authorization of Cox and Stevens, Inc. 



587. Tensile-Strength Tests of Experimental Rigging Insulators, by J.G. 



McGinley. Sep 1947- 12 pp., 3 figs. 



588. Preliminary Report of the Tests of Models of Towing Targets, by J.H. 



Curry and Jack Posner. Aug 1947- 28 pp., 20 figs, superseded by Report 595- 



589. Forces Measured in a Towline during Towing Tests of a Series ;G-6o High- 



Speed Sled Target, by J.G. McGinley. Sep 1947- 7 PP- 



