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  Partner: UNT Libraries Government Documents Department
 Collection: Technical Report Archive and Image Library
Results 15381 - 15404 of 19,794
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Round heat-treated chromium-molybdenum-steel tubing under combined loads

Round heat-treated chromium-molybdenum-steel tubing under combined loads

Date: July 1, 1943
Creator: Osgood, William R
Description: The results of tests of round heat-treated chromium-molybdenum-steel tubing are presented. Tests were made on tubing under axial load, bending load, torsional load, combined bending and axial load, combined bending and torsional load, and combined axial, bending, and torsional load. Tensile and compressive tests were made to determine the properties of the material. Formulas are given for the evaluation of the maximum strength of this steel tubing under individual or combined loads. The solution of an example is included to show the procedure to be followed in designing a tubular cantilever member to carry combined loads.
Contributing Partner: UNT Libraries Government Documents Department
Selection of oil coolers to avoid congealing

Selection of oil coolers to avoid congealing

Date: July 1, 1943
Creator: Martin, Dennis J
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Some yawing tests of a 1/30-scale model of the hull of the XPB2M-1 flying boat

Some yawing tests of a 1/30-scale model of the hull of the XPB2M-1 flying boat

Date: July 1, 1943
Creator: Locke, F W S , Jr
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Theory of self-excited mechanical oscillations of hinged rotor blades

Theory of self-excited mechanical oscillations of hinged rotor blades

Date: July 1, 1943
Creator: Coleman, Robert P
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Water tolerance of aviation gasoline containing xylidines

Water tolerance of aviation gasoline containing xylidines

Date: July 1, 1943
Creator: Olson, Walter T
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Wind-tunnel investigation of control-surface characteristics XIII : various flap overhangs used with a 30-percent-chord flap in an NACA 66-009 airfoil

Wind-tunnel investigation of control-surface characteristics XIII : various flap overhangs used with a 30-percent-chord flap in an NACA 66-009 airfoil

Date: July 1, 1943
Creator: Lockwood, Vernard E
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Wind-tunnel tests of four full-scale seaplane floats

Wind-tunnel tests of four full-scale seaplane floats

Date: July 1, 1943
Creator: Maynard, Julian D
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Wind-Tunnel Tests of the 1/9-Scale Model of the Curtiss XP-62 Airplane with Various Vertical Tail Arrangements

Wind-Tunnel Tests of the 1/9-Scale Model of the Curtiss XP-62 Airplane with Various Vertical Tail Arrangements

Date: July 1, 1943
Creator: Wallace, Arthur R. & Recant, I.G.
Description: The effect of various vertical tail arrangements upon the stability and control characteristics of an XP-62 fighter model was investigated. Rudder-free yaw characteristics with take-off power and flaps deflected were satisfactory after dorsal fin modifications. Directional stability was obtained with all modified vertical tails. Satisfactory rudder effectiveness resulted partly because the dual-rotation propellers produced no asymmetric yawing moments. Pedal forces in sideslips were undesirably large but may be easily reduced.
Contributing Partner: UNT Libraries Government Documents Department
Working charts for the computation of propeller thrust throughout the take-off range

Working charts for the computation of propeller thrust throughout the take-off range

Date: July 1943
Creator: Freitag, Robert F.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The low-temperature solubility of technical xylidine in aviation gasoline

The low-temperature solubility of technical xylidine in aviation gasoline

Date: June 4, 1943
Creator: Olson, Walter T
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Bearing tests of magnesium-alloy sheet

Bearing tests of magnesium-alloy sheet

Date: June 1, 1943
Creator: Sharp, W H & Moore, R L
Description: Bearing tests of AM-3S, AM-52S, and AM-C57S magnesium-alloy sheet in various thicknesses and tempers were made. Bearing yield and ultimate strengths were determined and compared for various edge distances and for various ratios of loading-pin diameter to sheet thickness. Tensile strengths were determined and ratios of average bearing yield and ultimate strength to tensile strength are given. The results of the tests indicated that ultimate bearing strengths increased with edge distances up to 1.5 to 2 times the diameter of the loading pin; that ultimate bearing strengths are a function of the ratio of pin diameter to sheet thickness; and that these properties are effected only slightly by increases in edge distance greater than 1.5 diameters.
Contributing Partner: UNT Libraries Government Documents Department
Briquetting Subbituminous Coal

Briquetting Subbituminous Coal

Date: June 1943
Creator: Parry, V. F. & Goodman, John B.
Description: Report issued by the Bureau of Mines over briquetting of coal for development of more effective fuel. Materials, equipment, and processes are discussed. This report includes tables, illustrations, and photographs.
Contributing Partner: UNT Libraries Government Documents Department
The effect of dead rise upon the high-angle porpoising characteristics of two planing surfaces in tandem

The effect of dead rise upon the high-angle porpoising characteristics of two planing surfaces in tandem

Date: June 1, 1943
Creator: Klein, Milton M
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Effect of exhaust back pressure on engine power

Effect of exhaust back pressure on engine power

Date: June 1, 1943
Creator: Pinkel, Benjamin
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Effect of wing loading and altitude on lateral stability and control characteristics of an airplane as determined by tests of a model in the free-flight tunnel

Effect of wing loading and altitude on lateral stability and control characteristics of an airplane as determined by tests of a model in the free-flight tunnel

Date: June 1, 1943
Creator: Seacord, Charles L , Jr
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Experimental determination of the yawing moment due to yawing contributed by the wing, fuselage, and vertical tail of a midwing airplane model

Experimental determination of the yawing moment due to yawing contributed by the wing, fuselage, and vertical tail of a midwing airplane model

Date: June 1, 1943
Creator: Mathews, Ward O
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Fatigue characteristics of spot-welded 24S-T aluminum alloy

Fatigue characteristics of spot-welded 24S-T aluminum alloy

Date: June 1, 1943
Creator: Beaver, W. W.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
First Organization and Work of the Coal-Mine Inspection Division, Bureau of Mines

First Organization and Work of the Coal-Mine Inspection Division, Bureau of Mines

Date: June 1943
Creator: United States. Bureau of Mines.
Description: Report issued by the U.S. Bureau of Mines discussing the organization of the Coal-Mine Inspection Division. The inspection procedures and work accomplished are presented. This report includes tables, illustrations, photographs, and a map.
Contributing Partner: UNT Libraries Government Documents Department
Flight tests of an all-movable vertical tail on the Fairchild XR2K-1 airplane

Flight tests of an all-movable vertical tail on the Fairchild XR2K-1 airplane

Date: June 1, 1943
Creator: Kleckner, Harold F
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Flight tests of various tail modifications on the Brewster XSBA-1 airplane I : measurements of flying qualities with original tail surfaces

Flight tests of various tail modifications on the Brewster XSBA-1 airplane I : measurements of flying qualities with original tail surfaces

Date: June 1, 1943
Creator: Nissen, J M
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Full-scale tunnel measurements of the pressures on the elevator and fuselage of the Curtiss XP-55 airplane

Full-scale tunnel measurements of the pressures on the elevator and fuselage of the Curtiss XP-55 airplane

Date: June 1, 1943
Creator: Dingeldein, Richard C
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Gasoline-water distribution coefficients of xylidines

Gasoline-water distribution coefficients of xylidines

Date: June 1, 1943
Creator: Olson, Walter T
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The locus of possible positions of a heavy bomber in space after a 12-second time interval

The locus of possible positions of a heavy bomber in space after a 12-second time interval

Date: June 1, 1943
Creator: Wood, Clotaire
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Mechanical tests of macerated phenolic molding material

Mechanical tests of macerated phenolic molding material

Date: June 1, 1943
Creator: Findley, William N
Description: None
Contributing Partner: UNT Libraries Government Documents Department