EEGULAE SERIES 



650. Pover Predictions of a Single-Screw Tanker for Union Oil Company, 



Models 4l87W and iil87W-l, by M.S. Harper. Aug I95O. 29 pp., 15 figs. 



Distributed only upon authorization of Union Oil Company. 



651. (NS 72^-00i<-d) . A Retract ion -Type Displacement Gage, by Thomas A. Perls, 



Ph. D. Mar 1950. 30 pp., 22 figs. 



652. Information for Private Parties Desiring Ship Model Tests at the David 



Taylor Model Basin, by R.B. Couch. Sep 19^^. I9 pp., 5 figs. 



653- Power Characteristics for the Newport News Shipbuilding and Dry Dock 

 Company 26, 000 -Deadweight -Ton Single-Screw Tanker as Predicted from 

 Tests with Model kO'J^, by Comdr. P.O. Schultz, USN. Jun lok8. 21 pp., 



15 figs . Distributed only upon authorization of Newport News Shipbuilding and Dry Dock Co. 



65^. Design of a Mult i frequency Reed -Type Shock Gage with an Inertia-' 



Operated Trigger, by Hilton Martin a n d Paul Golvato . May I9J+9. 



16 pp., 6 figs. 



655' The Calibration of the Department of Interior, Geological Survey Water 



Samplers, Models D-^3 and D-^7, by R.A. Ebner and T. Gibbons. Jun 19^+8. 



20 pp., 5 figs. Distributed only upon authorization of Department of Interior. 



656. Comparison of Kort Nozzles and Open Screw Propulsion for a River Tow- 



boat Pushing a Barge Fleet in Shallow and Deep Water at Speeds up 

 to 12 Miles per Hour As Determined from Model Tests, by W.E. Norley. 



Jul 19^*3. 39 PP»^ 23 figs. Distributed only upon authorization of Dravo Corporation. 



657. A Method for Converting the British© Coefficient Based on the Froude 



"0" Values to a © Coefficient Based on the Schoenherr Frictional 

 Formula, by M. Gertler. Jul 19^8. 7 pp., 2 figs. Rev. ed. Jun I9U9. 

 7 pp., 2 figs. 



658. Model Tests to Compare Characteristics of Alternate Stems of a 110- 



Foot Ex -Sub -Chaser, by F.S. Cauldwell. Aug I9W. 10 pp., 9 figs. 



Distributed only upon authorization of Linton Rigg and Company. 



659' Design and Development of the NAJ Beacon Mark 1 and Mark 2, by Robert 

 P. Hill. Nov I9U8. 2k pp., 16 figs. 



660. Scale Effect on Model Propellers, by J.G. Hill. Jul 19^*8. 8 pp., 3 figs. 



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