REGULAR SERIES 



53. Thornycroft Skimmer - Experiments with Model 2347 As a Seaplane Float. 



Jul 1922. 7 PP- . 5 figs. 



54. The U.S. Experimental Model Basin. Jul 1922. 7 pp. 



55. Determination of the Amount of Resistance to the Plow of Air Offered by- 



Armor Gratings, When Used in Conjunction with Expansions and Contrac- 

 tions of Duct: Resistance Offered by 12 Inch x 5 Inch Venturi Tube. 

 Aug 1922. 26 pp., 16 figs. 



56. Resistance of Standard Wire Mesh Basket for Ventilation Terminals: Re- 



sistance of Wire Screen Cloth. Aug 1922. 14 pp., 7 figs. 



57. Report on Test of Surface Propellers, Aug 1922. 16 pp., 12 figs, 



58. Resistance of Granular Charcoal to the Plow of Air. Aug 1922. 10 pp., 



5 figs. 



59. W Twin Floats - Report on Experiments with the Original Design and Modi- 



fications 1-4 Inclusive. Aug 1922. 18 pp., 14 figs. 



60. VE-7 Seaplane Float - Report of Experiments with Model 2424. Sep 1922. 8 



pp. , 5 figs. 



61 . Some Experiments on Propeller Positions and Propulsive Efficiency, by 



D.W. Taylor, Rear Admiral, USN. Sep 1922. 16 pp., 10 figs. 



63. Stability Tests - Experiments with Models of Seaplane Floats and Flying 



Boats. Nov 1922. 13 pp., 12 figs, 



64. Report of Test of Vertical Steering Control of Model of German Submarines 



U-1 81-190. Dec 1922. 5 pp., 3 figs. 



65. VT Twin Floats - 5th & 6th Modifications - Report of Experiments with 



Models 2457 & 2458. Dec 1922. 13 pp., 9 figs. 



66. Report of Tests of Propellers on Self Propelled Model of U. S.S. DELAWARE. 



Dec 1922. 10pp., 8 figs. Distributed only upon authorization of H.W. Akimoff. 



67. UO-1 Seaplane Float - Report on Experiments with Models 2455 and 2456. 



Dec 1922. 11 pp. , 9 figs. 



68. TS-1 Seaplane Floats (Twin) - Report of Additional Experiments with Model 



No. 2392. Jan 1923. 10 pp., 6 figs. 



69. Report of Rolling Experiments on Model No. 2375 - Representing U.S. Crane 



Ship No. 1. Mar 1923. 12 pp., 7 figs. 



70. F-5-L Flying Boat Hull (E.M.B. Model #2171) - Report of Experiments to 



Determine Effect of Changing Position of Rear Step. Mar 1923. 8 pp. , 



6 figs. 



71. Towing of Vessels at Sea. Apr 1923. 6 pp. , 1 fig. 



72. NM-1 Twin Floats - Report of Experiments with Model #2485. Apr 1923. 8 



pp. , 6 figs. 



