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[Letter from Hamilton K. Redway to Loriette Redway, December 3, 1865]

Description: A letter from Hamilton K. Redway in Washington D.C. to his wife, Loriette Redway, on December 3, 1865. The letter is regarding Hamilton Redway's business and life in Washington. Redway mentions that he will remain in the city until he gets his papers, and comments on the affairs of the army in Washington. He mentions that he has visited Munson's Hill and Upton's Hill in Arlington, and informs Loriette that the grounds about the Arlington Home have been turned into a national cemetery and that t… more
Date: December 3, 1865
Creator: Redway, Hamilton K.
Item Type: Refine your search to only Letter
Partner: UNT Libraries Special Collections
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[Letter from J. C. and Mary A. Barr to Charles B. Moore, December 3, 1865]

Description: Letter sent to Charles B. Moore from J. C. Barr discussing oil drilling in Jersey County, the health of acquaintances, railroad construction, farming, weather, as well as other family and local news. The third page of the letter is a segment added by Mary A. Barr discussing family life including visiting and gardening.
Date: December 3, 1865
Creator: Barr, J. C. & Barr, Mary A.
Item Type: Refine your search to only Letter
Partner: UNT Libraries Special Collections
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[Letter from Julia A. Barr to the Moore family, December 3, 1888]

Description: This item is from the Charles B. Moore Collection. It is written by Julia A. Barr, Henry and Charles Moore's cousin. In the letter, Julia updates the Moore family on the happenings in Jerseyville, Illinois and the news includes: a dialogue about meeting cousin George Wilson in Eureka Springs, Arkansas while on a trip there, a discussion about the people that accompanied here on the trip and how long she stayed, details concerning the people she meet in Eureka Springs, a conversation about Seell… more
Date: December 3, 1888
Creator: Barr, Julia A.
Item Type: Refine your search to only Letter
Partner: UNT Libraries Special Collections
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Experimentation on the Extraction of Uranium from Western Ores by Leaching with Sodium Carbonate and Sodium Bicarbonate

Description: Purpose: "The purpose of the following experiments was to obtain data on the selective extraction of uranium over vanadiur from samples of vanadium ores by leaching with sodium carbonate or sodium bicarbonate solutions, with the object of establishing the time, temperature, and concentration conditions necessary for satisfactory extractions."
Date: December 3, 1943
Creator: Saunders, E. R. & Carosella, M. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Ditching Tests of a 1/9-Size Model of the Army P-38 Airplane in Langley Tank No. 2 and at the Outdoor Catapult

Description: "A dynamically similar model of the Army P-38 airplane was tested to determine the best way to land this airplane on the water and to determine its probable ditching performance. The tests consisted of ditching the model at various landing attitudes, flap settings, speeds, weights, and conditions of simulated damage. The model was ditched in calm water from the tank towing carriage and a few ditching were made in both calm and rough water at the outdoor catapult" (p. 1).
Date: December 3, 1946
Creator: Jarvis, George A. & Cederborg, Gibson A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Flight Measurements of the Directional Stability and Control of a P-51D Airplane with a Horn-Balanced Rudder as Compared with Previously Tested Vertical-Tail Configurations

Description: "At the request of the Air Materiel Command, Army Air Forces, flight tests were conducted on a P-5lD-20-NA (AAF No. 44-63826) airplane equipped with a horn-balanced rudder. This rudder was fitted with an unbalancing tab as was the original product fan rudder. Tests were made both with the unbalancing tab in operation and with the unbalancing tab locked. The modification to the original vertical tail consisted of removing the cap from the top of the fin and adding 1.91 square feet of area to the… more
Date: December 3, 1946
Creator: Mungall, Robert G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aerodynamic characteristics at subsonic and supersonic Mach numbers of a thin triangular wing of aspect ratio 2 2: maximum thickness at midchord

Description: "The lift, drag, and pitching-moment characteristics of a triangular wing, having an aspect ratio of 2 and a symmetrical double-wedge profile of 5-percent-chord maximum thickness at midchord, have been evaluated from wind-tunnel tests at Mach numbers from 0.50 to 0.975 and from 1.09 to 1.49 and at Reynolds numbers ranging from 0.67 to 0.85 million. The lift, drag, and pitching-moment coefficients of the triangular wing with a leading-edge sweepback of approximately 63 degrees did not exhibit th… more
Date: December 3, 1948
Creator: Walker, Harold J. & Berggren, Robert E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation of Horn Balances on a 45 Degree Sweptback Horizontal Tail Surface at High Subsonic Speeds

Description: A wind-tunnel investigation of horn balances on a 45 degree sweptback, semispan, horizontal tail surface was made to determine the effects of horn size and inboard-edge fairing at a Mach number of 0.30 and to determine the effects of compressibility up to a Mach number of 0.89. Presented are lift, drag, pitching-moment, and hinge-moment data and lift and hinge-moment parameters.
Date: December 3, 1948
Creator: Johnson, Harold S. & Thompson, Robert F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Longitudinal Stability of Elastic Swept Wings at Supersonic Speed

Description: "The longitudinal stability characteristics of elastic swept wings of high aspect ratio experiencing bending and torsional deformations are calculated for supersonic speed by the application of linearized lifting-surface theory. A parabolic wing deflection curve is assumed and the analysis is simplified by a number of structural approximations. The method is thereby limited in application to wings of high aspect ratio for which the root effects are small" (p. 1).
Date: December 3, 1948
Creator: Frick, C. W. & Chubb, R. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Elevated Temperature Properties of Titanium Carbide Base Ceramals Containing Nickel or Iron

Description: Elevated-temperature properties of titanium carbide base ceramals containing nickel or iron were determined in oxidation, modulus of rupture, tensile strength, and thermal-shock resistance. These materials followed the general growth law and exhibited two stages in oxidation. The following tensile strengths were found at 2000 degrees F: 13.3 weight percent nickel, 16, 150 pounds per square inch; 11.8 weight percent iron, 12,500 pounds per square inch; unalloyed titanium carbide, 16,450 pounds p… more
Date: December 3, 1951
Creator: Cooper, A. L. & Colteryahn, L. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Free-Flight Investigation to Determine Force and Hinge-Moment Characteristics at Zero Angle of Attack of a 60 Degrees Sweptback Half-Delta Tip Control on a 60 Degrees Sweptback Delta Wing at Mach Numbers Between 0.68 and 1.44

Description: Report presenting a free-flight investigation of two rocket-powered control research models to determine the force and hinge-moment characteristics at zero angle of attack of a half-delta tip control on a delta wing. Results regarding the control hinge moments, control normal force, and calculated hinge moments are provided.
Date: December 3, 1951
Creator: Martz, C. William; Church, James D. & Goslee, John W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fundamental Flame Velocities of Pure Hydrocarbons 3: Extension of Tube Method of High Flame Velocities - Acetylene-Air Mixtures

Description: Memorandum presenting an extension of the tube method of measuring flame velocities to fundamental flame velocities of 141 centimeters per second. The extension was accomplished by reducing the flame-tube diameter from 25 to 12.5 millimeters. Results regarding the gas flow and spatial flame velocity, flame surface area, and fundamental flame velocity are provided.
Date: December 3, 1951
Creator: Levine, Oscar & Gerstein, Melvin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Plate Efficiency in the Exchange of Deuterium Between Ammonia and Hydrogen

Description: Technical report outlining measurements of the equilibrium in the exchange of deuterium between ammonia and hydrogen and of the kinetics of this reaction. Details a series of tests carried out to measure Murphree plate efficiencies.
Date: December 3, 1951
Creator: Perlman, Morris L. & Bigeleisen, Jacob
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The static longitudinal characteristics at Mach numbers up to 0.95 of a triangular-wing canard model having a triangular control

Description: Report presenting the longitudinal stability and control of a canard model employing a triangular wing of aspect ratio 2 and a control surface of identical plan form at Mach numbers up to 0.95. The fixed control surface was effective in producing pitching moments at angles of incidence up to 10 degrees. Results regarding the static longitudinal characteristics, control-surface effectiveness, stability and effectiveness derivatives, and evaluation of the split flap effectiveness are provided.
Date: December 3, 1951
Creator: Stephenson, Jack D. & Selan, Ralph
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Valve-Actuated Pulse Column Design and Operation

Description: The following report describes a countercurrent extraction column, which employs timed solenoid valves and pressurized feeds to provide a pulsing action to disperse the phases. This report further describes the 4-stage cycle of the column operation.
Date: December 3, 1951
Creator: Burger, L. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Control characteristics of trailing-edge spoilers on untapered blunt trailing-edge wings of aspect ratio 2.7 with 0 degree and 45 degrees sweepback at Mach numbers of 1.41 and 1.96

Description: Report presenting an investigation in the supersonic blowdown tunnel to determine the control characteristics of full-span trailing-edge spoilers on two related full-blunt wings with the same aspect ratio but differing angles of sweepback. A similar unswept wing that was larger and had a partially blunt trailing edge was also tested with a full-span trailing-edge spoiler. Results regarding the lift, rolling-moment, and pitching-moment coefficients for unswept wings, the 45-degree sweptback wing… more
Date: December 3, 1952
Creator: Jacobsen, Carl R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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