Resource Type
Collection
Technical Report Archive and Image Library
181
National Advisory Committee for Aeronautics Collection
140
USGS Topographic Map Collection
61
USDA Farmers' Bulletins
14
Government Documents A to Z Digitization Project
6
Texas State Publications
3
Texas Senate Journals
2
United States Experiment Station Record
2
Boy and Girl Scout Annual Reports
1
Environmental Policy Collection
1
2 More
Serial/Series Title
NACA Technical Memorandums
43
NACA Technical Reports
38
NACA Technical Notes
37
15 Minute Series (Topographic)
25
United States Bureau of Mines Reports
25
NACA Aircraft Circulars
20
Farmers' bulletin (United States. Dept. of Agriculture)
13
United States Geological Survey Reports
7
30 Minute Series
6
7.5 Minute Series (Topographic)
3
33 More
States
267 Matching Results
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General Potential Theory of Arbitrary Wing Sections
The problem of determining the two dimensional potential flow around wing sections of any shape is examined. The problem is condensed into the compact form of an integral equation capable of yielding numerical solutions by a direct process. An attempt is made to analyze and coordinate the results of earlier studies relating to properties of wing sections. The existing approximate theory of thin wing sections and the Joukowski theory with its numerous generalizations are reduced to special cases of the general theory of arbitrary sections, permitting a clearer perspective of the entire field. The method which permits the determination of the velocity at any point of an arbitrary section and the associated lift and moments is described. The method is also discussed in terms for developing new shapes of preassigned aerodynamical properties.
Date:
November 4, 1932
Creator:
Theodorsen, T. & Garrick, I. E.
Object Type:
Report
System:
The UNT Digital Library
Tests of N.A.C.A. airfoils in the variable-density wind tunnel Series 24
"This note is the fifth of a series covering an investigation of a number of related airfoils. It presents the results obtained from tests of a group of six low-cambered airfoils in the variable-density wind tunnel. The mean camber lines are identical for the six airfoils and are of such a form that the maximum mean camber is 2 per cent of the chord and is at a position 0.4 of the chord behind the loading edge. The airfoils differ in thickness only, the maximum-thickness/chord ratios being 0.06, 0.09, 0.12, 0.15, 0.18, and 0.21" (p. 1).
Date:
January 1932
Creator:
Jacobs, Eastman N. & Ward, Kenneth E.
Object Type:
Report
System:
The UNT Digital Library
Valve Timing of Engines Having Intake Pressures Higher Than Exhaust
Note presenting an investigation to determine the possible improvement in performance by using a large amount of valve overlap on a supercharged engine. A series of tests was made on the NACA universal single-cylinder engine of 5-inch bore and 7-inch stroke with varying amounts of overlap from 0 to 100 degrees at five different intake pressures.
Date:
February 1932
Creator:
Taylor, Edward S.
Object Type:
Report
System:
The UNT Digital Library
The use of large valve overlap in scavenging a supercharged spark-ignition engine using fuel injection
From Summary: "This investigation was conducted to determine the effect of more complete scavenging on the full throttle power and the fuel consumption of a four-stroke-cycle engine. The NACA single-cylinder universal test engine equipped with both a fuel-injection system and a carburetor was used. The engine was scavenged by using a large valve overlap and maintaining a pressure in the inlet manifold of 2 inches of mercury above atmospheric. The maximum valve overlap used was 112 degrees. Tests were conducted for a range of compression ratios from 5.5 to 8.5."
Date:
April 1932
Creator:
Schey, Oscar W. & Young, Alfred W.
Object Type:
Report
System:
The UNT Digital Library
Transplanting trees and shrubs.
Describes the most effective ways of transplanting trees and shrubs from one environment to another, including information regarding: root protection; correct planting methods; suitable soil; and how to properly prepare plants for transplanting.
Date:
1932
Creator:
Mulford, Furman Lloyd, b. 1869
Object Type:
Book
System:
The UNT Digital Library
Longleaf pine primer.
A guide to growing longleaf pine trees as a timber crop.
Date:
1932
Creator:
Mattoon, Wilbur R. (Wilbur Reed), 1875-1941
Object Type:
Book
System:
The UNT Digital Library
Mineralogy of Drill Cores from the Potash Field of New Mexico and Texas
From summary: This report details the survey of the potash field of southeastern New Mexico and adjacent parts of Texas. The material described in this report was obtained from drill cores and well cuttings.
Date:
1932
Creator:
Schaller, Waldemar T. & Henderson, Edward P.
Object Type:
Report
System:
The UNT Digital Library
Geology and Coal, Oil and Gas Resources of the New Kensington Quadrangle, Pennsylvania
From abstract: This report is one of a series of publications by the United States Geological Survey on the Appalachian coal, oil, and gas fields. The area described occupies 227 square miles in Allegheny, Butler, and Westmoreland Counties, in western Pennsylvania, immediately north of Pittsburgh.
Date:
1932
Creator:
Richardson, G. B.
Object Type:
Report
System:
The UNT Digital Library
Geology and Oil Resources of the Elk Hills, California: Including Naval Petroleum Reserve Numbers 1
From introduction: The purpose of this report is to describe the geology of the Elk Hills and the occurrence of the oil and gas, to trace the movements of oil, gas, and water in the developed areas, and to discuss the oil possibilities of the undeveloped parts. The history of the field and its production also are set forth.
Date:
1932
Creator:
Woodring, W. P.; Roundy, P. V. & Farnsworth, Howard R.
Object Type:
Report
System:
The UNT Digital Library
The Ashland Coal Field, Rosebud, Powder River, and Custer Counties, Montana
From introduction: The detailed information concerning the coal deposits of the Ashland field set forth in this report has been obtained in the course of an investigation that has been conducted both as a part of the United States Geological Survey's general systematic study of western coal lands and as an aid in the administration of the public lands. With the information obtained on the location of outcrops, the number, distribution, and thickness of coal beds, the accessibility of the coal, and the thickness of the overburden, the public lands of the region are classified as to their coal value; coal-bearing lands are differentiated from noncoal-bearing lands; and the administration of the coal-land leasing law is facilitated.
Date:
1932
Creator:
Bass, N. Wood
Object Type:
Report
System:
The UNT Digital Library
The Crystal Cavities of the New Jersey Zeolite Region
From abstract: The crystal cavities present in the mineral complex of the New Jersey traprock region have long excited the interest of mineralogists. In 1914 Fenner made the first detailed and comprehensive study of these cavities and suggested that babingtonite was the original mineral. Soon after this anhydrite was found occupying parts of some of the cavities at one of the quarries. At this time, too, Wherry concluded that glauberite was the original mineral of some of the cavities because of his studies of similar crystal cavities in Triassic shale at different places.
Date:
1932
Creator:
Schaller, Waldemar T.
Object Type:
Report
System:
The UNT Digital Library
How to Control Billbugs Destructive to Cereal and Forage Crops
Revised edition. "Billbugs destroy or injure corn, wheat, rye, barley, oats, timothy, blue grass, Bermuda grass, Johnson grass, rice, sugar cane, peanuts and chufa. The most conspicuous damage by the adult billbugs is done to young corn plants. The most costly damage is undoubtedly that done by the larvae or grubs in cutting the underground portions of plants, especially those grown for hay and pasture. Billbugs have only one generation yearly and are generally dependent on grass sods or wild sedges and rushes. Corn, sugarcane, chufa, and timothy probably are the only crops in which they can perpetuate themselves within the plant tissues. The other host plants admit of inside feeding only during the early part of the grub stage, after which feeding is completed among the fibrous roots. Parasites are valuable natural checks, but their work follows, rather than prevents, crop loss. Clean cultivation, especially the complete elimination of wild sedges and rushes; suitable crop rotations; summer or early fall breaking of cultivated or infested wild sods; early planting of crops menaced by billbugs; and the protection of birds, especially ground feeders, including the bobwhite and the shore birds, are efficient means of preventing crop losses from billbugs. Hand …
Date:
1932
Creator:
Satterthwait, A. F.
Object Type:
Pamphlet
System:
The UNT Digital Library
Commercial Comb-Honey Production
Revised edition. This bulletin details the process for producing honey which is marketed in its original honeycomb and discusses the equipment needed, management of bees, and collection of the honeycombs.
Date:
1932
Creator:
Demuth, Geo. S. (George S.)
Object Type:
Pamphlet
System:
The UNT Digital Library
Journal of the Senate of Texas being the Third Called Session of the Forty-Second Legislature
This volume of the Journal contains the full documentation for the third called session of the Senate of Texas including proceedings, authors of Senate bills, as well as the history of Senate bills and resolutions. The index begins on page 287.
Date:
1932
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
Journal of the Senate of Texas being the Fourth Called Session of the Forty-Second Legislature
This volume of the Journal contains the full documentation for the fourth called session of the Senate of Texas including proceedings, authors of Senate bills, as well as the history of Senate bills and resolutions. The index begins on page 217.
Date:
1932
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
Mustang Bayou Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:31680
Date:
1932
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Orange Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1932
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Voss Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1932
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Mt. Bonnell Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1932
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Manning Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1932
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Manning Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1932
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Fauna Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:31680
Date:
1932
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Seabrook Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:31680
Date:
1932
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Hitchcock Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:31680
Date:
1932
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History