Collection
Texas Attorney General Opinions
794
Technical Report Archive and Image Library
361
National Advisory Committee for Aeronautics Collection
279
World War Two Collection
161
World War Poster Collection
124
Government Documents A to Z Digitization Project
38
World War Two Newsmaps
36
USGS Topographic Map Collection
21
Texas State Publications
20
USDA Farmers' Bulletins
19
10 More
Serial/Series Title
NACA Wartime Reports
176
American War Posters
104
NACA Advanced Restricted Reports
92
NACA Technical Notes
40
United States Geological Survey Reports
39
NACA Technical Memorandums
38
U.S. Geological Survey bulletin
37
Newsmap
36
NACA Advanced Confidential Reports
32
NACA Memorandum Reports
31
62 More
Country
States
1,417 Matching Results
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Muscovite in the Spruce Pine District, North Carolina
From Abstract: "This report describes the occurrence of the mica and its physical properties among which is an unusually wide range of colors. A table is presented showing the results of power-factor measurements made by the National Bureau of Standards on 196 samples of sheet mica from 109 mica mines and 15 feldspar mines.It is concluded that more systematic planning of mica mining, for the district as a whole. would result in an average yearly production of at least 90,000 pounds of relatively clear sheet and possibly much more."
Date:
1942
Creator:
Kesler, Thomas L. (Thomas Lingle), 1908-1997 & Olson, J. C. (Jerry Chipman), 1917-2013
Object Type:
Report
System:
The UNT Digital Library
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
Flight Tests of Modifications to Improve the Aileron Control Characteristics of a North American XP-51 Airplane (AC No. 41-38)
Investigations were undertaken to improve the ailerons of a P-51 fighter so as to obtain greater effectiveness without increasing the stick forces. Modifications consisted of increasing the deflection range of the aileron to 70 percent and changing the original concave section to a thick section with beveled trailing edge. Results of the modified ailerons showed an increase in effectiveness over the original aileron of 70 percent at low speed and 55 percent at high speeds.
Date:
June 1942
Creator:
White, M. D. & Hoover, Herbert H.
Object Type:
Report
System:
The UNT Digital Library
On a New Method for Calculating the Potential Flow Past a Body of Revolution
Report presenting a new method for obtaining the velocity potential of the flow about a solid of revolution moving uniformly in the direction of its axis of symmetry in a fluid otherwise at rest. The method is based essentially on the fact that the form of the differential equation for the velocity potential is invariant with regard to conformal transformations in a meridian plane. The general results are applied to a body of revolution obtained by revolving a symmetrical Joukowski profile about its axis of symmetry.
Date:
July 1942
Creator:
Kaplan, Carl
Object Type:
Report
System:
The UNT Digital Library
Analysis of Heat and Compressibility Effects in Internal Flow Systems and High-Speed Tests of a Ram-Jet System
Report presenting an analysis of the effects of heat and compressibility in the flow through the internal systems of aircraft. Equations and charts are developed whereby the flow characteristics at key stations in a typical internal system may be readily obtained.
Date:
September 1942
Creator:
Becker, John V. & Baals, Donald D.
Object Type:
Report
System:
The UNT Digital Library
The effect of exhaust-stack shape on the design and performance of the individual cylinder exhaust-gas jet-propulsion system
Report presenting tests on a single-cylinder, air-cooled engine to determine the effect of several different exhaust-stack shapes on the design and performance of the individual cylinder exhaust-gas jet-propulsion systems. Results regarding the effect of nozzle area and stack shape on exhaust-gas jet thrust, effect of nozzle area and stack shape on overall performance for the S-shape, the 90 degree bend, and the 180 degree bend, the effect on the shape on engine power and volumetric efficiency, and the effect of a branched stack on engine power are provided.
Date:
November 1942
Creator:
Turner, L. Richard & Humble, Leroy V.
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
She's a swell plane-- give us more! : more production.
Poster in black & white and red tones. A military pilot in a flight uniform smiles as he removes his goggles and points backward.
Date:
1942
Creator:
Riggs, Robert, 1896-1970
Object Type:
Poster
System:
The UNT Digital Library
"Keep 'em flying" is our battle cry! : first class fighting men needed.
Recruiting poster for aviation cadets and soldiers. Graphic image shows three U.S. Army airplanes flying through the sky as the U.S. flag waves in the background.
Date:
1942
Creator:
Smith, Dan V. & Downe, Albro F.
Object Type:
Poster
System:
The UNT Digital Library
This man is your friend : Canadian : he fights for freedom.
Photograph of a smiling Canadian soldier in uniform and wearing a tam o'shanter.
Date:
1942
Creator:
United States. Office of Facts and Figures.
Object Type:
Poster
System:
The UNT Digital Library
This man is your friend : Ethiopian : he fights for freedom.
Photograph of an Ethiopian soldier in uniform and cap, playing a bugle.
Date:
1942
Creator:
United States. Office of Facts and Figures.
Object Type:
Poster
System:
The UNT Digital Library
This man is your friend : Australian : he fights for freedom.
Photograph of a smiling Australian soldier in uniform and wearing a slouch hat.
Date:
1942
Creator:
United States. Office of Facts and Figures.
Object Type:
Poster
System:
The UNT Digital Library
This man is your friend : Chinese : he fights for freedom.
Photograph of a smiling Chinese soldier in uniform with cap.
Date:
1942
Creator:
United States. Office of Facts and Figures.
Object Type:
Poster
System:
The UNT Digital Library
This man is your friend : Dutch sailor : he fights for freedom.
Photograph of a Dutch sailor in uniform and cap.
Date:
1942
Creator:
United States. Office of Facts and Figures.
Object Type:
Poster
System:
The UNT Digital Library
Making America strong : competitive companies co-operate to produce important instruments for military aircraft.
Black & white poster features comic-book style drawings of an industrial worker, managers, and buildings, and a large outline map of the U.S. containing additional text.
Date:
1942?
Creator:
National Association of Manufacturers (U.S.)
Object Type:
Poster
System:
The UNT Digital Library
Take care! : idle hands work for Hitler.
Color poster featuring a black & white photograph. An adult male stands on the left side of the poster facing the viewer. He is wearing a cap, his left arm is in a sling, and he wears a large button or badge above his right chest pocket.
Date:
1942
Creator:
United States. War Production Board.
Object Type:
Poster
System:
The UNT Digital Library
Don't let that shadow touch them: buy war bonds.
Three children with toys and a flag, on a lawn scattered with small white flowers, are surrounded by the shadow of a swastika. One boy holds a toy military airplane. Another boy wears a paper hat and holds a flag on a makeshift pole. The girl is seated and holds a doll.
Date:
1942
Creator:
Smith, Lawrence Beall, 1909-
Object Type:
Poster
System:
The UNT Digital Library
"Keep 'em rolling, pal. On the production line, we're fighters, too. We'll give 'em a beating they'll never forget." Produce for victory!
A working man smiles at the viewer. He has goggles on his forehead and is wearing a torn sweatshirt.
Date:
1942
Creator:
Hagel, Otto, 1909-1973.
Object Type:
Poster
System:
The UNT Digital Library
"The stuff our soldiers need is comin'-- but fast! We're workin' like hell to give them everything they need to beat the livin' daylights out of those _ _ _ _!" : produce for victory!
A gray- or blond-haired man, possibly a miner, looks directly at the viewer. He wears a hardhat with a lamp on it, a brown leather jacket, and appears to have soot on his face.
Date:
1942
Creator:
Sheldon-Claire Co.
Object Type:
Poster
System:
The UNT Digital Library
Men of 18 and 19: now you can choose your branch of service.
Poster in black & white and green tones. The main image is a green-tinted photograph of head and shoulders of a soldier in a helmet, looking upward. A white inset at right lists various branches of service.
Date:
October 17, 1942
Creator:
unknown
Object Type:
Poster
System:
The UNT Digital Library
This is our war-- : join the WAAC, Women's Army Auxiliary Corps, United States Army.
The golden-orange background shows a faint outline of Pallas Athene's head. Superimposed on this background is a large black & white photograph of the head and shoulders of a woman in a WAAC uniform.
Date:
1942
Creator:
unknown
Object Type:
Poster
System:
The UNT Digital Library
"You make 'em, buddy -- we'll use 'em -- and how! We're all soldiers together. Our victories in battle come right after your victories in production." : produce for victory!
A soldier wearing a helmet and uniform looks upward toward the viewer. A gas mask hangs around his neck. He has blonde hair, blue eyes, a rough complexion, and a serious expression.
Date:
1942
Creator:
Sheldon-Claire Co.
Object Type:
Poster
System:
The UNT Digital Library
Winter legumes for green manure in the Cotton Belt.
Describes varieties of the winter legumes used for "green manure" in the southern United States; provides suggestions for considerations to make when using winter legumes on farmland.
Date:
May 1942
Creator:
McKee, Roland. & McNair, A. D.
Object Type:
Book
System:
The UNT Digital Library
"This is everybody's war. The enemy has made it so. May you never know what it means to be a refugee -- to be hungry -- to be homeless. Be sure this never happens to you!" : produce for victory!
Poster shows a photo of a mother holding a child with two small children walking beside her through a war torn area with damaged buildings in the background.
Date:
1942
Creator:
Sheldon-Claire Co.
Object Type:
Poster
System:
The UNT Digital Library