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A method for determining the rate of heat transfer from a wing or streamline body

Description: From Summary: "A method for calculating the rate of heat transfer from the surface of an airfoil or streamline body is presented. A comparison with the results of an experimental investigation indicates that the accuracy of the method is good. This method may be used to calculate the heat supply necessary for heat de-icing or in ascertaining the heat loss from the fuselage of an aircraft operating at great altitude, for example."
Date: December 1942
Creator: Frick, Charles W., Jr. & McCullough, George B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tests of a Thermal Ice-Prevention System for a Wing Leading-Edge Landing-Light Installation

Description: Report discussing the creation of a thermal ice-prevention system of a bomber-type airplane to provide protection against ice and fog formations on the transparent fairing over the landing light in the wing leading edge. A comparison between the design performance and actual performance showed that the outer-surface heat-transfer coefficient was correctly predicted, but the inner-surface heat-transfer coefficient was four times as large, leading to failure of the plastic fairing.
Date: December 1944
Creator: Hillendahl, Wesley H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Performance of an exhaust-gas "blowdown" turbine on a nine-cylinder radial engine

Description: Report presenting tests on an exhaust-gas turbine with four separate nozzle boxes each covering a 90 degree arc of the nozzle diaphragm and each connected to a pair of adjacent cylinders in a Pratt & Whitney R-1340-12 nine-cylinder radial engine. Results regarding the power output of the engine and turbine, effect of the turbine on engine power, turbine power output and speed characteristics, mean turbine efficiency, effect of the blowdown turbine on exhaust-gas temperature, and condition of th… more
Date: December 1944
Creator: Turner, L. Richard & Desmon, Leland G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A method for calculating heat transfer in the laminar flow region of bodies

Description: Report presenting a practical method for determining the chordwise distribution of the rate of heat transfer from the surface of a wing or body of revolution to air. The method is limited to use to the determination of heat transfer fro the forward section of such bodies when the flow is laminar.
Date: December 1942
Creator: Allen, H. Julian & Look, Bonne C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Calculations of Economy of 18-Cylinder Radial Aircraft Engine With Exhaust-Gas Turbine Geared to the Crankshaft at Cruising Speed

Description: Report presenting calculations based on dynamometer test-stand data on an 18-cylinder radial engine made to determine the improvement in fuel consumption that can be obtained by gearing an exhaust-gas turbine to the engine crankshaft in order to increase the engine shaft work.
Date: December 1945
Creator: Hannum, Richard W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wall interference in a two-dimensional-flow wind tunnel with consideration of the effect of compressibility

Description: Report presenting tunnel-wall corrections for an airfoil of finite thickness and camber in a two-dimensional-flow wind tunnel. The theory takes account of the effects of the wake of the airfoil and of the compressibility of the fluid and is based on the assumption that the chord of the airfoil is small in comparison with the height of the tunnel. The theoretical results are compared with the small amount of low-speed experimental data available and agreement is seen to be satisfactory, even for… more
Date: December 1944
Creator: Allen, H. Julian & Vincenti, Walter G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Calculation of Span Load Distributions of Swept-Back Wings

Description: "Span load distributions of swept-back wings have been calculated. The method used was to replace the wing with a bound vortex at the quarter-chord line and to calculate the downwash due to the system of bound and trailing vortices to conform at the three-quarter-chord line to the slope of the flat-plate wing surface. Results are given for constant-chord and 5:1 tapered plan forms, for sweep-back angles of 0 degrees, 30 degrees, and 45 degrees, and for aspect ratios of 3, 6, and 9" (p. 1).
Date: December 1941
Creator: Mutterperl, William
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced map and aerial photograph reading.

Description: "The purpose of this manual is to provide a text on advanced map and aerial photograph reading for military personnel who throughly understand the basic material in FM 21-25." (Page 1.)
Date: December 1944
Creator: United States. War Department.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Physical reconditioning.

Description: Describes the purpose and functions of the Physical Reconditioning portion of the U.S. Army's Reconditioning Program, for the treatment of convalescent soldiers who have been wounded or who have experienced prolonged illness.
Date: December 1944
Creator: United States. War Department.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Plumbing : repairs and utilities

Description: "This manual prescribes materials and methods used to operate, maintain, and repair plumbing systems in Army buildings. Installation details covering alterations and additions to existing facilities are also discussed."
Date: December 1945
Creator: United States. War Department.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Aircraft woodwork.

Description: Discusses woodworking in aircraft manufacturing in general, and in detail the characteristics of wood, the glue and hardware necessary, hand tools and machines, as well as repair of the aircraft.
Date: December 22, 1942
Creator: United States. War Department.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

The Horn Fly and Its Control.

Description: Describes the life cycle and of the horn fly, the damage it causes to livestock, and steps for controlling it.
Date: December 1940
Creator: Bruce, W. G. (Wesley Gordon), b. 1892
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Grounding Electrical Equipment In and About Coal Mines

Description: Report issued by the U.S. Bureau of Mines on the safety measures used in keeping mining equipment grounded. Methods and instrumentation used in testing grounding equipment are presented. This report includes tables, and illustrations.
Date: December 1943
Creator: Griffith, Franklin E. & Gleim, E. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Secondary-Recovery Practices and Oil Reserves in the Eastern Part of the Delaware-Childers Field, Nowata County, Oklahoma

Description: Report issued by the U.S. Bureau of Mines on the oil recovery methods used in Nowata County, Oklahoma. Methods include vacuum use, and air-injection. This report includes tables, graphs, maps, and illustrations.
Date: December 1946
Creator: Johnston, Kenneth H. & Riggs, C. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Annual Report of the Explosives Division, Fiscal Year 1942

Description: Report issued by the U.S. Bureau of Mines on the annual report of work conducted by the Explosives Division during the fiscal year of 1942. Descriptions of testing projects and operations are presented. This report includes tables, graphs, illustrations, and photographs.
Date: December 1942
Creator: Huff, Wilbert James
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stemming in Metal Mines. Progress Report 5: Comparison of Dust and Gases Produced from Blasting Charges of Dynamite in Drill Holes, in Bombs, and in Mud-Cap Shots

Description: Report issued by the U.S. Bureau of Mines on the experiments conducted on stemming in metal-mines. As stated in the introduction, "its purpose is to compare the amount of dust and gases produced as a result of blasting charges of dynamite (1) in drill holes, (2) in bombs, and (3) in mud-cap or adobe shots" (p. 1). Dust and gas concentrations gathered from the experiments are listed. This report includes tables.
Date: December 1942
Creator: Johnson, John A. & Agnew, Wing G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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