EEGULAE SERIES 



716. (Aero 772). 



717. (NS 880-019). A Method of Determining Optiraum Lengths of Towing Cables, 



by Leonard Pode. Apr 1950. 15 PP^, 8 figs. Appendix 1, Mar I956. 



718. Tests of a Trochoidal Propeller - TMB Propeller 3078, by J.G. Hill. 



Feb 1950. 6 pp., h figs. Distributed only upon authorization of Xrocholdal Propeller Corporati 



719. Mathematical Formulation of Bodies of Revolution, by L. Landweber and 



M. Gertler. Sep 1950. 70 pp., 13 figs. 



720. (NS 711-110). Evaluation of Selected Shock Instrviments, by Thomas A. 



Perls and Harry L. Rich. Feb I95I. 64 pp., 56 figs. 



721. (Aero 788). 



722. Twin-Screv Passenger and Trailership Model iK)13-4. Wake Survey in Way 



of Propeller and at Two Locations Aft, by M.S. Harper. Jul I95O. 



6 pp., 3 figs. Distributed only upon authorization of Sun Shipbuilding and Dock Company. 



723. (NS 724-001). A Bar-Magnet Velocity Meter, by Dr. Thomas A. Perls and 



Dr. Erich Buchmann. Feb I951. 28 pp., 12 figs. 



724. (NS 715-086). Effects of Turbulence Stimulators on the Boundary Layer 



and Resistance of a Ship Model as Detected by Hot Wires, by John P. 

 Breslin and Morris S. Macovsky. Aug I95O. kk pp., 22 figs. 



725. A Low-Frequency Electronic Integrator, by B.H. Harrison. Feb I95I. 



31 pp., 15 figs. 



726. (NS 715-086). Progress Report on Research in Frictional Resistance. 



Sep 1950 • Prepared for American Towing Tank Conference. 



Note on Studies of the Resistance of Hydraulically-Rough Surfaces, 

 by Phillip Eisenberg. 6 pp., 7 figs. 



A Review of the Theory of the Frictional Resistance of a Smooth 

 Flat Plate with Turbulent Boundary Layer, by L. Landweber. 8 pp., 

 2 figs. 



Effect of Transverse Curvature on Frictional Resistance, by W.M. 

 Ellsworth, Jr. 2 pp. 



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