31 

 REGULAR SERIES 



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



Sun Shipbuilding and Dry Dock Company Proposed Twln-Screw Passenger 

 and Trailership, by W.H. Norley. Jul 19^7- 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 19^+7. 



18 pp. , 8 figs. 



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



Method, by E.J. Adams and Alice R. Welch. Jul 19'4-7. 8 pp. , 2 figs. 



583. Wake Survey of the Mark 13 Torpedo, by H.A. Eggers. Jul 19^7. 27 pp., 



16 figs. 



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



Speed Sled Target, by G.B. Mayfield. Aug ^Qk'J. 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 194-7. 



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 



l6o-Poot and 270-Poot 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 Superseded by 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-60 High 



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



590. The Torque Converter Type "Foettinger, " by W. Spannhake. Sep 1947. 



7 pp. , 3 figs. 



591 . The Torque Converter to Be Employed on Cellulose Hjrdrolyzers at the 



Northern Regional Research Institute, Peoria, Illinois, by W. 

 Spannhake. Sep 1947. 5 pp. , 2 figs. 



592. Research on the Development and Propagation of Hydrodynamic Noise. 



Progress Report 2 - Progress on the Development of Hot-Wire Methods 

 for Velocity Measurements in Water, by M.S. MacovslQr. Oct 1Q47. 7 

 pp. , 3 figs. 



593- Tensile Tests of Fiberglas Micarta Rigging Insulators, by J.G. McGinley. 

 Jul 1947. 7 pp. , 3 figs. 



594. Resistance and Propulsion Tests of a 25-Foot Model and a 20-Poot Model 

 of U.S. Maritime Commission Tanker T2-SE-A1 , by H.M. Pitzpatrick. 



Oct 1947. 15 PP-) 12 figs. Distributed only upon authorization of Atlantic 

 Refining Co. 



