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  Partner: UNT Libraries Government Documents Department
 Decade: 1940-1949
 Year: 1943
 Collection: Technical Report Archive and Image Library
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
Byproduct Coke-Oven Tests of Washington Coals

Byproduct Coke-Oven Tests of Washington Coals

Date: August 1943
Creator: Yancey, H. F.; Daniels, Joseph; McMillan, E. R. & Geer, M. R.
Description: Report issued by the U.S. Bureau of Mines on the coking-coal testing done on Washington coal. Descriptions of the testing, and properties of the coals tested are presented. This report includes tables, and photographs.
Contributing Partner: UNT Libraries Government Documents Department
Calculated and measured turning performance of a Navy F2A-3 airplane as affected by the use of flaps

Calculated and measured turning performance of a Navy F2A-3 airplane as affected by the use of flaps

Date: September 1, 1943
Creator: Kauffman, William M
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Certain mechanical strength properties of aluminum alloys 25S-T and X76S-T

Certain mechanical strength properties of aluminum alloys 25S-T and X76S-T

Date: October 1, 1943
Creator: Dolan, Thomas J
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Characteristics of an NACA 66, S-209 section hydrofoil at several depths

Characteristics of an NACA 66, S-209 section hydrofoil at several depths

Date: May 1, 1943
Creator: Land, Norman S
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Charts for calculation of the critical stress for local instability of columns with I-, Z-, channel and rectangular-tube section

Charts for calculation of the critical stress for local instability of columns with I-, Z-, channel and rectangular-tube section

Date: November 1, 1943
Creator: Heimerl, George J
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Coke from Low-Ash Appalachian Coals for Carbon Electrodes in Aluminum Industry with a Chapter on Comparison of Results Obtained by Trent Process for Cleaning Coal with Those by Float-and-Sink Methods

Coke from Low-Ash Appalachian Coals for Carbon Electrodes in Aluminum Industry with a Chapter on Comparison of Results Obtained by Trent Process for Cleaning Coal with Those by Float-and-Sink Methods

Date: November 1943
Creator: Selvig, W. A.; Ode, W. H.; Gibson, F. H. & Davis, Joseph D.
Description: Report issued by the U.S. Bureau of Mines on testing conducted on coking coal samples for carbon electrode use in aluminum production. The testing methods, and results are presented. This report includes tables.
Contributing Partner: UNT Libraries Government Documents Department
A comparative study of the effect of wing flutter shape on the critical flutter speed

A comparative study of the effect of wing flutter shape on the critical flutter speed

Date: November 1, 1943
Creator: Pinkel, I Irving
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Comparative Yields of Light Oil, Tar, and Constituents from Carbonization Tests at 800 Degrees, 900 Degrees, and 1,000 Degrees Celsius

Comparative Yields of Light Oil, Tar, and Constituents from Carbonization Tests at 800 Degrees, 900 Degrees, and 1,000 Degrees Celsius

Date: March 1943
Creator: Holmes, C. R.; Wilson, J. E. & Davis, J. D.
Description: Report issued by the U.S. Bureau of Mines on testing done on a variety of American coals collected from 32 coal beds across the country. The carbonizing properties of samples tested at 3 different temperatures are presented. This report includes tables, and graphs.
Contributing Partner: UNT Libraries Government Documents Department
A comparison at high speed of the aerodynamic merits of models of medium bombers having thickened wing roots and having wings with nacelles

A comparison at high speed of the aerodynamic merits of models of medium bombers having thickened wing roots and having wings with nacelles

Date: December 1, 1943
Creator: Draley, Eugene C
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Comparison of various methods for computing drag from wake surveys

Comparison of various methods for computing drag from wake surveys

Date: January 1, 1943
Creator: Davis, Wallace F
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Construction of wire strain gages for engine application

Construction of wire strain gages for engine application

Date: December 1, 1943
Creator: Tucker, Maurice
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Correlation of single-cylinder cooling tests of a Pratt and Whitney R-2800-21 engine cylinder with wind-tunnel tests of a Pratt and Whitney R-2800-27 engine

Correlation of single-cylinder cooling tests of a Pratt and Whitney R-2800-21 engine cylinder with wind-tunnel tests of a Pratt and Whitney R-2800-27 engine

Date: December 1, 1943
Creator: Rollin, Vern G
Description: None
Contributing Partner: UNT Libraries Government Documents Department
A correlation of the dimensions, proportions, and loadings of existing seaplane floats and flying boat hulls

A correlation of the dimensions, proportions, and loadings of existing seaplane floats and flying boat hulls

Date: March 1943
Creator: Locke, Fred W S , Jr
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The Coupling of Flexural Propeller Vibrations with the Torsional Crankshaft Vibrations

The Coupling of Flexural Propeller Vibrations with the Torsional Crankshaft Vibrations

Date: December 1, 1943
Creator: Meyer, J.
Description: The exact mathematical treatment of the problem is possible by replacing the propeller blade by a homogeneous prismatic rod. Conclusions can them be drawn as to the behavior of an actual propeller, since tests on propeller blades have indicated a qualitative agreement with the homogeneous rod. The natural frequencies are determined and the stressing of the systems under the various vibration modes are discussed.
Contributing Partner: UNT Libraries Government Documents Department
Critical compressive stress for curved sheet supported along all edges and elastically restrained against rotation along the unloaded edges

Critical compressive stress for curved sheet supported along all edges and elastically restrained against rotation along the unloaded edges

Date: September 1, 1943
Creator: Stowell, Elbridge Z
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Critical shear stress of an infinitely long flat plate with equal elastic restraints against rotation along the parallel edges

Critical shear stress of an infinitely long flat plate with equal elastic restraints against rotation along the parallel edges

Date: November 1, 1943
Creator: Stowell, Elbridge Z
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Critical stress for an infinitely long flat plate with elastically restrained edges under combined shear and direct stress

Critical stress for an infinitely long flat plate with elastically restrained edges under combined shear and direct stress

Date: November 1, 1943
Creator: Schwartz, Edward B
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Critical stresses for plates

Critical stresses for plates

Date: October 1, 1943
Creator: Schuette, Evan H
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Data on buckling strength of curved sheet in compression

Data on buckling strength of curved sheet in compression

Date: October 1, 1943
Creator: Levin, L Ross
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Derivation of charts for determining the horizontal tail load variation with any elevator motion

Derivation of charts for determining the horizontal tail load variation with any elevator motion

Date: January 1, 1943
Creator: Pearson, Henry A
Description: The equations relating the wing and tail loads are derived for a unit elevator displacement. These equations are then converted into a nondimensional form and charts are given by which the wing- and tail-load-increment variation may be determined under dynamic conditions for any type of elevator motion and for various degrees of airplane stability. In order to illustrate the use of the charts, several examples are included in which the wing and tail loads are evaluated for a number of types of elevator motion. Methods are given for determining the necessary derivatives from results of wind-tunnel tests when such tests are available.
Contributing Partner: UNT Libraries Government Documents Department
Derivation of charts for determining the horizontal tail load variation with any elevator motion

Derivation of charts for determining the horizontal tail load variation with any elevator motion

Date: January 1, 1943
Creator: Pearson, Henry A
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Description of stress-strain curves by three parameters

Description of stress-strain curves by three parameters

Date: July 1, 1943
Creator: Ramberg, Walter & Osgood, William R
Description: A simple formula is suggested for describing the stress-strain curve in terms of three parameters; namely, Young's modulus and two secant yield strengths. Dimensionless charts are derived from this formula for determining the stress-strain curve, the tangent modulus, and the reduced modulus of a material for which these three parameters are given. Comparison with the tensile and compressive data on aluminum-alloy, stainless-steel, and carbon-steel sheet in NACA Technical Note No. 840 indicates that the formula is adequate for most of these materials. The formula does not describe the behavior of alclad sheet, which shows a marked change in slope at low stress. It seems probable that more than three parameters will be necessary to represent such stress-strain curves adequately.
Contributing Partner: UNT Libraries Government Documents Department
Design criterions for the dimensions of the forebody of a long-range flying boat

Design criterions for the dimensions of the forebody of a long-range flying boat

Date: November 1, 1943
Creator: Parkinson, John B
Description: None
Contributing Partner: UNT Libraries Government Documents Department