26 



REGULAR SERIES 



451 . Experiments with a Model of XS03C-1 Airplane Float - Bureau of Aeronaut- 



ics Project 3307. Jun 1938. 9 PP«» 6 figS. Distributed only upon authorization 

 of Bureau of Aeronautics. 



452. Compression Tests of Ship-Structure Assemblies, by John Vasta. Jun 1938. 



21 pp. , 15 figs. 



1+54. XS02U-1 Airplane Float - Pointed Step Type - Experiments with a Model 



of - Bu. Aer. Project No. 3315- Jul 1938. 9 PP- , 6 figs. Distributed only 



upon authorization of Bureau of Aeronautics. 



4-55' Preliminary XPBM-1 Hull Lines - Experiments with a Model of - Bureau of 

 Aeronautics Project No. 3266. Aug 1938. 10 pp., 6 figs. Distributed only 



upon authorization of Bureau of Aeronautics. 



456. XPBM-1 Hull Lines - Experiments with a Model of - Bureau of Aeronautics 



Project NO. 336l . Sep 1938. 11 pp., 6 figS. Distributed only upon authorization 

 of Bureau of Aeronautics. 



457. The Elastic Stability of Tee Stiffeners, by D.F. Windenburg. Nov 1938. 



16 pp. , 5 figs. 



460. Tests of a Model in Restricted Channels, by L. Landweber. May 1939- 30 



pp., 19 figs. 



461 . XPBM-1 Hull Lines - Model Tests with Modified Step - Bureau of Aeronaut- 



ics Project NO. 336l . Jun 1 939 - 10 PP., 6 figS. Distributed only upon authoriza- 

 tion of Bureau of Aeronautics. 



462. Design No. 142, Mark 1 Airplane Hull - Experiments with a Model of - Bu- 



reau of Aeronautics Project No. 3345- Sep 1 939- 9 PP-» 6 figs. Dis- 

 tributed only upon authorization of Bureau of Aeronautics. 



463. Air Flow through Small Segments of Armor Gratings with Duct Approaches. 



Jan 1940. 11 pp., 4 figs. 



464. Design No. 180, Class VPB Airplane Hull - Experiments with a Model of - 



Bureau of Aeronautics Project 3365. Oct 1939- 9 PP-, 6 figs. Distributed 



only upon authorization of Bureau of Aeronautics. 



465. Design No. 154 Float - Experiments with a Model of - Bureau of Aeronaut- 



ics Project NO. 3240. NOV 1939* 9 PP-» 6 figS. Distributed only upon authoriza- 

 tion of Bureau of Aeronautics. 



467. Service Strain Tests of Hull Structures - A Review of Work of the Exper- 



imental Model Basin to and Including the Year 1939, by Lt. Comdr. W. P. 

 Roop, USN. Jan 1940. 15 pp. 



468. Service Strain Tests - Technique and Procedure. Mar 1940. 27 pp. , 18 



figs. 



469. The Strength of Ship Plating under Edge Compression, by J.M. Frankland. 



May 1940. 28 pp. , 13 figs. 



470. Interaction between Propeller and Hull, by Dr. K.E. Schoenherr and A.Q. 



Aquino. Mar 1940. 49 pp., l6 figs. 



