Resource Type
Partner
Collection
Technical Report Archive and Image Library
359
National Advisory Committee for Aeronautics Collection
279
TRAIL Microcard Collection
13
Office of Scientific & Technical Information Technical Reports
7
Texas State Publications
7
Harris and Eliza Kempner
3
Rescuing Texas History, 2019
3
Abilene Library Consortium
2
National WASP WWII Museum
2
Boy and Girl Scout Annual Reports
1
3 More
Serial/Series Title
NACA Wartime Reports
176
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
NACA Advanced Confidential Reports
32
NACA Memorandum Reports
31
Strategic minerals investigations
31
United States Bureau of Mines Reports
25
40 More
States
Texas Commissary Company Audit Report: June 7 - September 30, 1942
Report compiled regarding financial statements for a component of the Plosser-Prince Air Academy in Sweetwater, Texas, documented under the name "Texas Commissary Company." It includes explanations from the auditors and two exhibits showing the financial condition of the organization (as of September 30) and a statement of profit and loss (for June 7-September 30).
Date:
November 19, 1942
Creator:
Hutchinson and Bloodgood
System:
The Portal to Texas History
The Extraction Method of Purification of Uranyl Nitrate
Technical report. Three extractions of a diethyl ether solution of uranyl nitrate with small portions of water are effective in removing rare earths, as is shown by radio-gadolinium and radio-europium tracer experiments. A study of representative ethers, alcohols, ketones, and esters showed that diethyl ether and a mixture of 85% ethyl methyl ketone with 15% xylene are the best solvents for the extraction.
Date:
August 28, 1942
Creator:
Myers, L. S., Jr.; Anderson, K. C.; Wexler, Sol & Boyd, G. E.
System:
The UNT Digital Library
Examples for Pressure Drop Calculations in Parallel Flow Helium Cooling
Pressure drop calculations are shown for He cooled power plants ranging from 400,000 kw to 30,000 kw.
Date:
June 18, 1942
Creator:
Feld, Bernard T. (Bernard Taub), 1919-1993 & Szilard, Leo
System:
The UNT Digital Library
Geology and Biology of North Atlantic Deep-Sea Cores Between Newfoundland and Ireland
Summary: In May and June 1936 Dr. C. S. Piggot of the Geophysical Laboratory, Carnegie Institution of Washington, took a series of 11 deep-sea cores in the North Atlantic Ocean between the Newfoundland banks and the banks off the Irish coast.
Date:
1942
Creator:
Bradley, Wilmot H.
System:
The UNT Digital Library
Shorter Contributions to General Geology, 1941-42
Preface: The author of this paper gives a thorough description of a complex of very unusual igneous rocks and associated hydrothermal deposits.
Date:
1942
Creator:
Geological Survey (U.S.)
System:
The UNT Digital Library
Purification of Uranium Oxide
None
Date:
April 21, 1942
Creator:
Hoffman, J.I.
System:
The UNT Digital Library
On Certain Phase Equilibria in the Ternary System Uranyl Nitrate--Ether--Water at 25° and at 1°C
This report follows a study that deals with a portion of the ternary diagram previously analyzed, namely the boundary curves which separate the central area of two coexistent liquid phases from the two border stripe representing one-phase liquid systems.
Date:
October 22, 1942
Creator:
Van Name, Ralph Gibbs
System:
The UNT Digital Library
Pressure-Distribution Measurements of a Model of a Davis Wing Section with Fowler Flap Submitted by Consolidated Aircraft Corporation
Wing pressure distribution diagrams for several angles of attack and flap deflections of 0 degrees, 20 degrees, and 40 degrees are presented. The normal force coefficients agree with lift coefficients obtained in previous test of the same model, except for the maximum lifts with flap deflection. Pressure distribution measurements were made at Reynolds Number of about 6,000,000.
Date:
January 1942
Creator:
Abbott, Ira H.
System:
The UNT Digital Library
Pressure-distribution measurements of two airfoil models with Fowler flaps submitted by Consolidated Aircraft Corporation as alternative wing sections of the XB-32 airplane
Report presenting pressure distribution measurements on two 24-inch chord models equipped with Fowler flaps in the two-dimensional low-turbulence pressure tunnel. Results regarding pressure-distribution diagrams and normal-force and moment coefficients are provided.
Date:
January 1942
Creator:
Abbott, Ira H.
System:
The UNT Digital Library
A study of the application of data on various types of flap to the design of fighter brakes
Report presenting an approximate method of applying the available data on various types of flaps in the design of fighter brakes together with several examples of its use. The computed effects of flap type, size, location, and deflection as well as the effects of altitude and initial velocities on braking characteristics are also shown in some examples using the method to determine various flap arrangements.
Date:
June 1942
Creator:
Purser, Paul E.
System:
The UNT Digital Library
Calculation of tab characteristics for flight conditions from wind-tunnel data
Report presenting tail-surface characteristics calculated from wind-tunnel data, which have been reported to not correspond with flight-test measurements. The primary problem under consideration is the calculation of the effect of tab deflection on the free-floating angle of the elevator, as in a servocontrol.
Date:
April 1942
Creator:
Sears, Richard I.
System:
The UNT Digital Library
Wind-tunnel investigation of control-surface characteristics 5: the use of a beveled trailing edge to reduce the hinge moment of a control surface
Report presenting wind tunnel testing to investigate the possibility of reducing the hinge moments of a control surface by beveling the trailing edge. Tests were made with a 9-percent-thick airfoil with a 30-percent-chord plain flap. Results regarding the variations of lift and hinge moment, effect of shapes, and pitching moments are provided.
Date:
March 1942
Creator:
Jones, Robert T. & Ames, Milton B., Jr.
System:
The UNT Digital Library
Wind tunnel investigation of control surface characteristics 9: some analytical considerations and experimental test results for an internally balanced flap
Report presenting an analysis of the probable aerodynamic section characteristics of a plain flap with various arrangements of internal balance. The results of the calculations previously obtained were found to be in agreement with the experiment. Some possible applications of the data to balancing tabs are also provided.
Date:
July 1942
Creator:
Sears, Richard I.
System:
The UNT Digital Library
Wind tunnel investigation of control-surface characteristics 10: a 30-percent-chord plain flap with straight contour on the NACA 0015 airfoil
Report presenting force-test measurements in two-dimensional flow in the 4- by 6-foot vertical tunnel to determine the characteristics of an NACA 0015 airfoil equipped with a straight-contour plain flap with a chord 30 percent of the airfoil chord. Results regarding the lift, hinge moment of flap, pitching moment, and drag are provided.
Date:
September 1942
Creator:
Hoggard, H. Page, Jr.
System:
The UNT Digital Library
Wind-tunnel investigation of control-surface characteristics 6: a 30-percent-chord plain flap on the NACA 0015 airfoil
Report presenting force-test measurements in two-dimensional flow in the 4- by 6-foot vertical tunnel of the characteristics of an NACA 0015 airfoil equipped with a plain flap with a chord 30 percent of the airfoil chord and a plain tab with a chord 20 percent of the flap chord. Results regarding lift, hinge moment of flap, pitching moment, drag, and tab characteristics are provided.
Date:
June 1942
Creator:
Sears, Richard I. & Liddell, Robert B.
System:
The UNT Digital Library
Wind-Tunnel Investigation of Control-Surface Characteristics: [Part] 7 - A Medium Aerodynamic Balance of Two Nose Shapes Used With a 30-Percent-Chord Flap on an NACA 0015 Airfoil
Report presenting force-test measurements in two-dimensional flow made in the 4- by 6-foot vertical tunnel of the characteristics of an NACA 0015 airfoil with a balanced flap with a chord 30 percent of the airfoil chord and a flap-nose overhang 35 percent of the flap chord. Results regarding lift, hinge moment of flap, pitching moment, drag, and tab characteristics are provided.
Date:
July 1942
Creator:
Sears, Richard I. & Hoggard, H. Page, Jr.
System:
The UNT Digital Library
Wind-Tunnel Investigation of an NACA 23012 Airfoil with a Handley Page Slat and Two Flap Arrangements
Report presenting an investigation in the 7- by 10-foot wind tunnel of an NACA 23012 airfoil equipped with a Handley Page slat and a slotted and a split flap. The purpose of the investigation was to determine the aerodynamic section characteristics of the airfoil with and without flaps as affected by the location of the Handley Page slat. A range of slat-nose locations was investigated both with and without flaps at a constant slat gap.
Date:
February 1942
Creator:
Schuldenfrei, Marvin J.
System:
The UNT Digital Library
Wind tunnel investigation of a plain aileron with various trailing-edge modifications on a tapered wing 2: ailerons with thickened and beveled trailing edges
Report presenting an investigation in the 7- by 10-foot tunnel of various modifications to the trailing edge of a 0.155-chord plain aileron on a semispan model of the tapered wing of a fighter airplane. The stick forces and rates of roll were estimated for a fighter airplane with the plain and modified ailerons.
Date:
October 1942
Creator:
Rogallo, F. M. & Purser, Paul E.
System:
The UNT Digital Library
Adjustment of Stick Force by a Nonlinear Aileron-Stick Linkage
Report presenting an application of the principle of aileron-stick forces and mechanical advantage to an aileron installation in which the stick forces are small over the low-deflection range and excessively large at full deflection.
Date:
November 1942
Creator:
Lowry, John G.
System:
The UNT Digital Library
Characteristics of plain and balanced elevators on a typical pursuit fuselage at attitudes simulating normal-flight and spin conditions
Report presenting lift and elevator hinge-moment characteristics of a horizontal tail with various plain and balanced elevators and mounted on a typical pursuit fuselage as measured in the 7- by 10-foot wind tunnel at attitudes simulating normal-flight and spin conditions. The lift effectiveness of the elevator was practically independent of the size of the aerodynamic balance. Results regarding the fuselage alone and fuselage interference, lift characteristics of fuselage-tail combinations, lift effectiveness of the tab, elevator hinge moments, parameters, effect of yaw on elevator hinge moments, effect of tab on elevator hinge moments, drag, and comparison with two-dimensional data are provided.
Date:
March 1942
Creator:
Sears, Richard I. & Hoggard, H. Page, Jr.
System:
The UNT Digital Library
Characteristics of beveled-trailing-edge elevators on a typical pursuit fuselage at altitudes simulating-normal flight and spin conditions
Report presenting lift and elevator hinge-moment characteristics were measured on horizontal tail provided with elevators having three different beveled trailing edges. Results regarding fuselage alone and fuselage interference, lift characteristics of fuselage-tail combination, elevator hinge-moment characteristics, drag, and comparison with data from two-dimensional-flow tests are provided.
Date:
December 1942
Creator:
Gillis, Clarence L.
System:
The UNT Digital Library
Application of Balancing Tabs to Ailerons
Analysis was made to determine characteristics required of a balancing-tab system for ailerons in order to reduce aileron stick forces to any desired magnitude. Series of calculations based on section data were made to determine balancing-tab systems of various chord tabs and ailerons that will give, for a particular airplane, zero rate of aileron hinge moment with aileron deflection and yet will produce same maximum rate of roll as a plain unbalanced 15-percent chord aileron of same span. Effects of rolling velocity and of forces in tab link on aileron hinge moments have been included.
Date:
June 1942
Creator:
Sears, Richard I.
System:
The UNT Digital Library
Wind-tunnel investigation of control-surface characteristics 8: a large aerodynamic balance of two nose shapes used with a 30-percent-chord flap on an NACA 0015 airfoil
Report presenting force tests in two-dimensional flow in the 4- by 6-foot vertical tunnel of the characteristics of an NACA 0015 airfoil with a balanced flap having a chord of 30 percent of the airfoil chord, a flap-nose overhang 50 percent of the flap chord, and a tab having a chord 20 percent of the flap chord. Results regarding the precision and presentation of data, lift, hinge moment of flap, pitching moments, drag, tab characteristics, and balancing effectiveness of various overhangs are provided.
Date:
July 1942
Creator:
Sears, Richard I. & Gillis, Clarence L.
System:
The UNT Digital Library
Tire friction coefficients and their relation to ground-run distance in landing
Report presenting a summary of published information on braking friction coefficients. Analysis indicates that the magnitude of the friction coefficient available will affect the technique required for obtaining the shortest ground run only under extreme conditions.
Date:
June 1942
Creator:
Gustafson, F. B.
System:
The UNT Digital Library