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Notes on the Effect of Surface Distortions on the Drag and Critical Mach Number of Airfoils

Description: "The effect of two-dimensional bumps and surface waviness on the pressure distribution over airfoils is considered. It is shown that the results of the analysis may be useful in evaluating the effects of accidental or intended surface distortions on the drag and critical Mach number of airfoils" (p. 1).
Date: September 1943
Creator: Allen, H. Julian
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Diseases of sheep and goats.

Description: Describes the causes, symptoms, and treatment options for infectious and noninfectious diseases of sheep and goats.
Date: September 1943
Creator: Shahan, Maurice S. (Maurice Sommer), 1898- & Huffman, Ward T.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Physiological aspects of flying.

Description: "The purpose of this manual is to endeavor to explain in everyday terms the various physical and physiological problems that arise during flying, and to give in detail the latest knowledge of proved solutions to these problems." (--Page 2.)
Date: September 25, 1943
Creator: United States. War Department.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Vocational teaching.

Description: "This manual is designed to help officers in the armed forces, enlisted men, or civilian instructors who are to teach for the first time." Discusses student characteristics, various aspects of teaching, and testing.
Date: September 30, 1943
Creator: United States. War Department.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Experimental Physics Division of the Los Alamos Project. Progress report No. 4

Description: Included in this semi-monthly report written in 1943 are progress with neutron beams, neutron absorption in enriched materials, equipment operation and maintenance reports of the cyclotron neutron source facility, and instrumentation maintenance activities of individuals in the cyclotron group. (GHT)
Date: September 1, 1943
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Magnolia Oil Field, Columbia County, Arkansas: Part 1. Petroleum-Engineering Study; Part 2. Derivation and Application of Material-Balance Equations

Description: Report issued by the U.S. Bureau of Mines on studies conducted at the Magnolia oil fields in Columbia County, Arkansas. History, geology, and methods are presented. This report includes tables, graphs, maps, and illustrations.
Date: September 1943
Creator: Carpenter, Charles B.; Schroeder, H. J. & Cook, Alton B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Studies of methyl bromide in greenhouse and vault fumigation.

Description: Describes the results of scientific research regarding the effectiveness of methyl bromide as an insecticide in greenhouse and vault fumigation.
Date: September 1943
Creator: Richardson, Henry H. (Henry Howe), 1906-; Johnson, A. C. (Alpha Cornelius), b. 1889; Bulger, Jacob Work, 1887-; Casanges, A. H. & Johnson, George V. (George Victor), 1910-
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department

Newsmap. Monday, September 27, 1943 : week of September 16 to September 23, 211th week of the war, 93rd week of U.S. participation

Description: Front: Text describes action on various war fronts: Italy, Sardinia and Corsica, Russia, Southwest pacific, Dodecanese Is., Gilbert Is., Yugoslavia. Maps show Russian front; European fronts; Jap-controlled territory in Southwest Pacific. Inset map shows battle line of Russian front on July 5th. Includes 7 photographs of war action. Back: Progress of the War : Report from the Chief of Staff to the Secretary of War : 1 July 1941 to 30 June 1943. Extensive text with 2 maps: Deployment of Ame… more
Date: September 27, 1943
Creator: [United States.] Army Orientation Course.
Item Type: Refine your search to only Poster
Partner: UNT Libraries Government Documents Department

Newsmap. Monday, September 20, 1943 : week of September 9 to September 16, 210th week of the war, 92nd week of U.S. participation

Description: Front: Text describes action on various war fronts: Italy, Italian fleet, Mussolini, Russia, Rhodes, New Guinea, Paramushiro. Inset maps of Eastern Europe from France to Turkey and of Papua, Northeast New Guinea and New Britain. Includes photographs and captions "released by the Nazis and received in the United States through neutral Portugal and Sweden." Back: Battleground in Italy. Map of Italy with inset map of the countries surrounding Italy.
Date: September 20, 1943
Creator: [United States.] Army Orientation Course.
Item Type: Refine your search to only Poster
Partner: UNT Libraries Government Documents Department

Newsmap. Monday, September 13, 1943 : week of September 2 to September 9, 209th week of the war, 91st week of U.S. participation

Description: Front: Text describes action on various war fronts: Italy, Yugoslavia, Air offensive, Southwest Pacific, Russia. Maps show military activities in Eurasia and New Guinea near Salamaua with boxed text highlighting action. Photograph: A story of blood [American soldier receives a transfusion while lying on the street in Santa Agata, Sicily while townspeople look on]. Back: Something money can't buy - United States Army tradition! Illustration shows service ribbons of service medals. Text descr… more
Date: September 13, 1943
Creator: [United States.] Army Orientation Course.
Item Type: Refine your search to only Poster
Partner: UNT Libraries Government Documents Department
open access

Water Analysis

Description: Data acquired from sampling the Columbia River water September 1, 1943, is presented. The waster was analyzed for turbidity, ph value, chemical composition, and suspended matter.
Date: September 1, 1943
Creator: Kidder, C. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wind-Tunnel Tests of Ailerons at Various Speeds 3: Ailerons of 0.20 Airfoil Chord and True Contour With 0.35-Aileron-Chord Frise Balance on the NACA 23012 Airfoil

Description: Report presenting hinge moment, lift, and pressure-distribution measurements made on a Frise aileron on an NACA 23012 airfoil in the two-dimensional test section of the stability tunnel. Speeds up to 360 miles per hour corresponding to a Mach number of about 0.470 were used.
Date: September 1943
Creator: Letko, W. & Kemp, W. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aerodynamic and Hydrodynamic Tests of a Family of Models of Flying-Boat Hulls Derived From a Streamline Body: NACA Model 84 Series

Description: Report presenting a series of related flying-boat hull forms with various combinations of aerodynamic and hydrodynamic requirements that were tested in an NACA tank and high-speed tunnel. Effects explored included varying the height of the bow, varying the height of the stern, increasing the angle of dead rise at the bow, decreasing the angle of dead rise on the afterbody, increasing the depth of step, increasing the angle of afterbody keel, adding chine flare, adding a third planing surface, a… more
Date: September 1943
Creator: Parkinson, John B.; Olson, Roland E.; Draley, Eugene C. & Luoma, Arvo A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wind-Tunnel Investigation of a Low-Drag Airfoil Section with a Double Slotted Flap

Description: From Summary: "Tests were made of an 0.309-chord double-slotted flap on an NACA 65, 3-118, a equals 1.0 airfoil section to determine drag, lift, and pitching-moment characteristics for a range of flap deflections. Results indicate that combination of a low-drag airfoil and a double-slotted flap, of which the two parts moved as a single unit, gave higher maximum lift coefficients than have been obtained with plain, split, or slotted flaps on low-drag airfoils. Pitching moments were comparable to… more
Date: September 1943
Creator: Bogdonoff, Seymour M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Some Notes on the Determination of the Stick-Fixed Neutral Point From Wind-Tunnel Data

Description: "Two methods are presented for determining the horizontal location of the stick-fixed neutral point from wind-tunnel data. One method involves the solution of a mathematical equation; whereas the other method is a graphical solution for the same mathematical equation. The combined horizontal and vertical variation of the neutral point completely describes the stick-fixed longitudinal stability of airplanes that have large allowable center-of-gravity shifts" (p. 1).
Date: September 1943
Creator: Schuldenfrei, Marvin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wind-tunnel vibration tests of dual-rotating propellers

Description: Report presenting vibration tests of six- and eight-blade tractor and seven- and eight-blade pusher dual-rotating propellers conducted in the 16-foot high-speed tunnel to determine the severity of vibrations excited by blade passages. Measurements of vibratory stresses were made for engine-speed ranges at low, intermediate, and high engine powers. Few vibrations caused by blade passages were detected, and those vibrations were not serious.
Date: September 1943
Creator: Miller, Mason F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Some Lift and Drag Measurements of Two Configurations of a Nacelle and Oil-Cooler Scoop for the Hughes-Kaiser Cargo Airplane

Description: Report presenting tests in the two-dimensional low-turbulence tunnel to determine the drag characteristics of two configurations of a 0.0476-scale nacelle and oil-cooler scoop for the Hughes-Kaiser cargo airplane. The nacelles were found to have a slightly favorable effect on the maximum lift coefficient.
Date: September 1943
Creator: Quinn, John H., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Some Investigations of the General Instability of Stiffened Metal Cylinders 6: Stiffened Metal Cylinders Subjected to Combined Bending and Transverse Shear

Description: "This is the sixth of a series of reports covering an investigation of the general instability problem by the California Institute of Technology. This report and the succeeding reports of this series cover the work done on other loading conditions under the sponsorship of the National Advisory Committee for Aeronautics. This report summarizes the work that has been carried on in the experimental investigation of the problem of general instability of stiffened metal cylinders subjected to combin… more
Date: September 1943
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Requirements for Auxiliary Stiffeners Attached to Panels Under Combined Compression and Shear

Description: "Panels of aluminum alloy sheets, framed by side and end stiffeners, were subjected to combined loading by means of offset knife edges applying loads to top and bottom end plates with reacting forces against the end plates supplied by laterally acting rollers. The test specimens were 17S-T aluminum alloy shoots 0.040 inch thick in panels of 10-inch width and three different lengths (approximately 10, 26, and 30 inch). Data were obtained for the bowing of transverse and longitudinal ribs of rect… more
Date: September 16, 1943
Creator: Scott, Merit & Weber, Robert L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Strength of Thin-Wall Cylinders of D Cross Section in Combined Pure Bending and Torsion

Description: "The results of tests of 56 cylinders of D cross section conducted in the Aeronautical Laboratory of the University of Maryland are presented in this report. These cylinders were subjected to pure bending and torsional moments of varying proportions to give the strength under combined loading conditions. The average buckling stress of these cylinders has been related to that of circumscribing circular cylinders for conditions of pure torsion and pure bending and the equation of the interaction … more
Date: September 1943
Creator: Sherwood, A. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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