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13,618 Matching Results
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A method for determining the rate of heat transfer from a wing or streamline body
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.
Object Type:
Report
System:
The UNT Digital Library
Tests of a Thermal Ice-Prevention System for a Wing Leading-Edge Landing-Light Installation
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.
Object Type:
Report
System:
The UNT Digital Library
Performance of an exhaust-gas "blowdown" turbine on a nine-cylinder radial engine
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 the blowdown turbine after tests are provided.
Date:
December 1944
Creator:
Turner, L. Richard & Desmon, Leland G.
Object Type:
Report
System:
The UNT Digital Library
A method for calculating heat transfer in the laminar flow region of bodies
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.
Object Type:
Report
System:
The UNT Digital Library
Calculations of Economy of 18-Cylinder Radial Aircraft Engine With Exhaust-Gas Turbine Geared to the Crankshaft at Cruising Speed
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.
Object Type:
Report
System:
The UNT Digital Library
Wall interference in a two-dimensional-flow wind tunnel with consideration of the effect of compressibility
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 relatively large values of the chord-height ratio.
Date:
December 1944
Creator:
Allen, H. Julian & Vincenti, Walter G.
Object Type:
Report
System:
The UNT Digital Library
The Calculation of Span Load Distributions of Swept-Back Wings
"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
Object Type:
Report
System:
The UNT Digital Library
[BASEMENT BOX 67.0625]
Photograph of the remains of a building on the main street in Binger, OK. The roof is missing, the front windows are gone, and the side of the structure has begun to fall down. Smoke is still rising from the remains. Photograph was taken in the night time. Caption: "A sudden blaze which for a time Tuesday night threatened the entire town of Binger before its populace fought the fire and saved other buildings. left a general store and theater only a shell of blackened ruins."
Date:
December 17, 1946
Creator:
Meek, Richard B.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Advanced map and aerial photograph reading.
"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.
Object Type:
Book
System:
The UNT Digital Library
Physical reconditioning.
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.
Object Type:
Book
System:
The UNT Digital Library
Plumbing : repairs and utilities
"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.
Object Type:
Book
System:
The UNT Digital Library
Aircraft woodwork.
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.
Object Type:
Book
System:
The UNT Digital Library
The Horn Fly and Its Control.
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
Object Type:
Book
System:
The UNT Digital Library
Investigation of the Huber-Rydalch Manganese Deposits, Tooele County, Utah
Report issued by the Bureau of Mines on the manganese deposits in Tooele County, Utah. The physical features, geology, and descriptions of the deposit samples are listed. This report includes tables, and illustrations.
Date:
December 1949
Creator:
Fry, Eugene & Wilson, Stephen R.
Object Type:
Report
System:
The UNT Digital Library
Investigation of the Yellow Pine Zinc-Lead Mine, Clark County, Nevada
Report issued by the Bureau of Mines regarding studies conducted on zinc-lead mines in Clark County, Nevada. Physical qualities of the mine, equipment used, and methods of sampling are presented. This report includes tables, and maps.
Date:
December 1949
Creator:
Geehan, Robert W. & Benson, Willmar T.
Object Type:
Report
System:
The UNT Digital Library
National Motor-Gasoline Survey: Summer 1949
Report issued by the Bureau of Mines over motor-fuels sold during the summer of 1949. The properties of the fuels sampled are presented. This report includes tables, and graphs.
Date:
December 1949
Creator:
Blade, O. C.
Object Type:
Report
System:
The UNT Digital Library
Investigation of Chromite Deposits of the Stillwater Complex, Stillwater and Sweetgrass Counties, Montana
Report issued by the Bureau of Mines regarding the chromite deposits in Stillwater and Sweetgrass counties. Characteristics of the chromite samples are presented. This report includes tables, maps, and illustrations.
Date:
December 1948
Creator:
Wimmler, Norman L.
Object Type:
Report
System:
The UNT Digital Library
National Motor-Gasoline Survey: Summer 1948
Report issued by the Bureau of Mines on motor fuels sold during the summer of 1948. The properties of the fuel samples are presented. This report includes tables, graphs, and a map.
Date:
December 1948
Creator:
Blade, O. C.
Object Type:
Report
System:
The UNT Digital Library
Investigation of Christy Titanium Deposit, Hot Spring County, Arkansas
Report issued by the Bureau of Mines over titanium deposits on the Christy property in Arkansas. Details of the location, and drilling methods are presented. This report includes tables, maps, illustrations, and photographs.
Date:
December 1949
Creator:
Reed, Donald F.
Object Type:
Report
System:
The UNT Digital Library
Investigation of Magnet Cove Rutile Deposit, Hot Spring County, Arkansas
Report issued by the Bureau of Mines on the exploration of the Magnet Cove Rutile deposits. Descriptions of the deposit, and characteristics of the pyrite, titanium, and mineral ore are presented. This report includes tables, maps, and illustrations.
Date:
December 1949
Creator:
Reed, Donald F.
Object Type:
Report
System:
The UNT Digital Library
Grounding Electrical Equipment In and About Coal Mines
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.
Object Type:
Report
System:
The UNT Digital Library
Secondary-Recovery Practices and Oil Reserves in the Eastern Part of the Delaware-Childers Field, Nowata County, Oklahoma
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.
Object Type:
Report
System:
The UNT Digital Library
Andover-Sulphur Hill Iron Mines, Sussex County, New Jersey
Report issued by the Bureau of Mines on the iron mines of Sussex County, New Jersey. Descriptions of the physicality, location, and drilling methods used on the deposits are presented. This report includes tables, maps, and illustrations.
Date:
December 1947
Creator:
Lynch, Victor J.
Object Type:
Report
System:
The UNT Digital Library
Annual Report of the Explosives Division, Fiscal Year 1942
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
Object Type:
Report
System:
The UNT Digital Library