Resource Type
Collection
Technical Report Archive and Image Library
212
National Advisory Committee for Aeronautics Collection
158
USGS Topographic Map Collection
41
USDA Farmers' Bulletins
20
Government Documents A to Z Digitization Project
17
Texas House of Representatives Journals
5
Texas Senate Journals
5
Texas State Publications
4
Texas Soil Surveys
4
United States Experiment Station Record
3
4 More
Serial/Series Title
NACA Technical Memorandums
53
NACA Technical Notes
44
United States Bureau of Mines Reports
35
NACA Technical Reports
34
15 Minute Series (Topographic)
30
NACA Aircraft Circulars
23
Farmers' bulletin (United States. Dept. of Agriculture)
20
42nd Legislature of Texas
11
Report of investigations (United States. Bureau of Mines)
11
United States Geological Survey Reports
11
35 More
States
306 Matching Results
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289 - 306 of
306
Tordia 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:
1931
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Aspermont 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:
1931
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Whitney 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:
1931
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Zavalla 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:
1931
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Lake Como 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 1:24000
Date:
1931
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
San Marcos Sheet
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project; this is a reprint based on surveys conducted 1906-1908. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date:
1931
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Barstow Sheet
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 1:125000
Date:
1931
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Carrollton 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:
1931
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Uvalde Sheet
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 1:125000
Date:
1931
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Tolar 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:
1931
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Grapevine 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:
1931
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
General and Special Laws of The State of Texas Passed By The Regular Session of the Forty-Second Legislature
The General and Special Laws of Texas contain the text of Texas legislation including laws, resolutions, statutes, amendments, and vetoed bills. The records include legislation from the Senate and House of Representatives as well as joint legislation organized by chapter. Index begins on page 955.
Date:
1931
Creator:
Texas. Legislature.
Object Type:
Legislative Document
System:
The Portal to Texas History
Downwash Measurements Behind Wings With Detached Flow
This investigation, which was made in the small wind tunnel having a diameter of 1.2 m (3.94 feet), embraced three wing models, behind which, at various angles of attack between 0 and 60 degrees, the static pressure and the total pressure along vertical lines (perpendicular to the direction of the undisturbed wind and to the wing span) were measured. The location of these vertical lines are indicated in Figure 1. Moreover, the wing polars were determined by the customary three-component measurements. For testing the pressure field, a Pitot tube and a static probe, both of 2 mm (0.08 in.) in diameter, were mounted 40 mm (1.57 in.) apart on the end of a shaft 1 m (39.37 in.) long.
Date:
August 1931
Creator:
Petersohn, E.
Object Type:
Report
System:
The UNT Digital Library
The aerodynamic characteristics of three tapered airfoils tested in the variable density wind tunnel
From Summary: "This report contains the lift, drag, and moment characteristics of tapered Clark Y, Gottingen 393, and USA 45 airfoils as obtained from tests made in the Variable Density Wind Tunnel of the NACA. The results are given at both low and high Reynolds Numbers to show scale effect and to provide data for use in airplane design."
Date:
February 1931
Creator:
Anderson, Raymond F.
Object Type:
Report
System:
The UNT Digital Library
The aerodynamic characteristics of six commonly used Airfoils over a large range of positive and negative angles of attack
From Summary: "This paper presents the results of tests of six commonly used airfoils: the CYH, the N-22, the C-72, the Boeing 106, and the Gottingen 398. The lifts, drags, and pitching moments of the airfoils were measured through a large range of positive and negative angles of attack. The tests were made in the variable density wind tunnel of the National Advisory Committee for Aeronautics at a large Boeing 106, and the Gottingen 398 airfoils, the negative maximum lift coefficients were found to be approximately half the positive; but for the M-6 and the CYH, which have less effective values were, respectively, 0.8 and 0.6 of the positive values."
Date:
November 1931
Creator:
Anderson, Raymond F.
Object Type:
Report
System:
The UNT Digital Library
The Variation in Pressure in the Cabin of an Airplane in Flight
From Summary: "The pressure in the cabin of a Fairchild cabin monoplane was surveyed in flight, and was found to decrease with increased air speed over the fuselage and to vary with the number and location of openings in the cabin. The maximum depression of 2.2 inches of water (equivalent pressure altitude at sea level of 152 feet) occurred at the high speed of the airplane in level flight with the cabin closed."
Date:
March 1931
Creator:
Gough, Melvin N.
Object Type:
Report
System:
The UNT Digital Library
Annual Report of the Boy Scouts of America: 1930
Annual report submitted by the Boy Scouts of America to Congress describing highlights from 1930, activities, finance, public relations, organizational leadership, and other information about scouting programs.
Date:
March 2, 1931
Creator:
Boy Scouts of America
Object Type:
Report
System:
The Portal to Texas History
Journal of the House of Representatives of the Third and Fourth Called Sessions of the Forty-Second Legislature of the State of Texas
The Journal contains the proceedings of the House of Representatives of Texas including legislation, reports, discussions, votes, and points-of-order. Some volumes also contain supplementary materials. The index to the third called session begins on page 409, on page 87 for the fourth called session.
Date:
1931
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History