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The Call Number, Volume 4, Number 5, February 1943

Description: Newsletter "issued monthly during the regular session by the students in the Department of Library Service, North Texas State Teachers College, Denton, Texas" (p. 1). The periodical contains: editorials; announcements; news items; poetry; and personals concerning students, faculty, staff, and alumni.
Date: February 1943
Creator: North Texas State Teachers College. Library Service Department.
Partner: UNT College of Information

Progress Report on Fatigue of Spot-Welded Aluminum

Description: Report presenting a detailed account of approximately half of the work planned for a specified contract. The work called for fatigue tests on three simple but basic types of spot-welded test pieces made from 24S-T alclad. The primary purpose of the investigation was determining the mechanism of fatigue failures in the different types of test pieces.
Date: February 1943
Creator: Russell, H. W. & Jackson, L. R.
Partner: UNT Libraries Government Documents Department

Development of thermal ice-prevention equipment for the B-24D airplane

Description: Report presenting a thermal ice-prevention system for the B-24D airplane. The report includes a description of the design and an outline of the method of design analysis. Results of performance tests of the installation will be presented in a supplementary report.
Date: February 1943
Creator: Jones, Alun R. & Rodert, Lewis A.
Partner: UNT Libraries Government Documents Department

Newsmap. Monday, February 15, 1943 : week of February 5 to February 12

Description: Front: Text describes action on various war fronts: Command, Solomons, North Africa, New Guinea, Russia. Large world map is keyed to text and illustrates time zones around the world. Inset maps of Guadalcanal; Russian front. Photographs: Heads down [under the barbed wire]; Jap navel gun; Near the end [fighting in Papua]; North Africa; Poles in Iraq; Vital supply: water for the Eighth Army; German mortar. Back: Poster illustrates uniforms and insignia of the German Army.
Date: February 15, 1943
Creator: [United States.] Army Orientation Course.
Partner: UNT Libraries Government Documents Department

Newsmap. Monday, February 22, 1943 : week of February 12 to February 19, 180th week of the war, 62nd week of U.S. participation

Description: Front: Text describes action on various war fronts: Russia, New Guinea, Solomons, China, Pacific and Far East, French fleet, North Africa. Large world map is keyed to text. Includes table: Great Circle Distances in Statute Miles. Inset maps show Tunisia and Russia. Includes 8 photographs. Back: Poster provides recognition cues and front and profile drawings of Allied and Axis light tanks and self-propelled weapons. Includes range scale.
Date: February 22, 1943
Creator: [United States.] Army Orientation Course.
Partner: UNT Libraries Government Documents Department

Small-orifice tubes for minimizing dilution in exhaust-gas samples

Description: Report presenting an investigation to find a means of obtaining undiluted exhaust-gas samples from a Wright R-2600-B aircraft engine equipped with short individual stacks. Preliminary tests to aid in determining the best design, location, and orientation of orifices ranging in size. Results regarding the Briggs & Stratton engine tests and Wright aircraft engine tests are provided.
Date: February 1943
Creator: Cook, Harvey A. & Olson, Walter T.
Partner: UNT Libraries Government Documents Department

The belt method for measuring pressure distribution

Description: "The measurement of pressure distribution may be accomplished rapidly for any number of locations deemed necessary in model or full-scale investigations by use of the 'belt' method. Reasonable accuracy may be obtained by careful use of this method" (p. 1).
Date: February 1943
Creator: Corson, Blake W., Jr.
Partner: UNT Libraries Government Documents Department

High-speed wind-tunnel tests of a 1/14-scale model of a four-engine cargo airplane

Description: Report presenting tests on a scale model of a four-engine cargo airplane, which was tested in the high-speed wind tunnel. The high-speed characteristics of the airplane, particularly the longitudinal stability and control in dives were investigated. Test results indicated that no important changes in longitudinal stability or controllability occurred until the speed exceeded the predicted maximum level-flight speed by more than 38 percent.
Date: February 1943
Creator: Hamilton, William T.
Partner: UNT Libraries Government Documents Department

Methods of Measurement of High Air Velocities by the Hot-Wire Method

Description: Investigations of strengths of hot wires at high velocities were conducted with platinum, nickel, and tungsten at approximately 200 Degrees Celcius hot-wire temperature. The results appear to disqualify platinum for velocities approaching the sonic range; whereas nickel withstands sound velocity, and tungsten may be used for supersonic velocities under standard atmospheric conditions. Hot wires must be supported by rigid prolongs at high velocities to avoid wire breakage. Resting current measurements for constant temperature show agreement with King's relation.
Date: February 1943
Creator: Weske, John R.
Partner: UNT Libraries Government Documents Department

A portable calibrator for dynamic strain gages

Description: From Summary: "A portable device for calibrating dynamic strain gages is described. The device contains a motor-driven cam, which applies alternating tensile loads to a metal strip 5/8 inch wide and 6 1/4 inches long. The cam is designed to produce a nearly sinusoidal variation of strain with time. Dynamic strain gages with gage lengths up to 5 inches may be calibrated by mounting them on the strip and by changing the frequency and the amplitude of the tensile load. The frequency may be varied from 15 to 30 cycles per second and the strain amplitude from 0 to 10x10-4 in steps of 2x10-4."
Date: February 1943
Creator: McPherson, Albert E.
Partner: UNT Libraries Government Documents Department

Pressure loss in ducts with compound elbows

Description: From Summary: "Results are presented of measurement of the pressure drop in ducts produced by two equal 90 degree elbows arranged at three different angular positions to each other, placed adjacent to each other, or separated by straight ducts of various lengths. The measured pressure drops have been analyzed and correlated, and the results are summarized in the form of curves adapted for design computations of pressure drop in compound-duct bends."
Date: February 1943
Creator: Weske, John R.
Partner: UNT Libraries Government Documents Department

Construction of weather maps, charts and diagrams

Description: "This supplement outlines in detail the methods for plotting of observation data, for entry of analysis, and for preparation of supplementary maps, charts, and diagrams for all Army Air Forces weather stations."
Date: February 2, 1943
Creator: United States. War Department.
Partner: UNT Libraries Government Documents Department

[The Interior of the Shaw Studio, February 1943]

Description: Photograph of in interior of Shaw Studio for photography. There is an individual female behind the counter and three individual customers. Two are female and one is male. There are many portraits inside and on the counter, the females are are wearing dresses, and the male is wearing a jacket with the words "FALCONS" and "NTSTC" on the back.
Date: February 1943
Partner: UNT Libraries Special Collections

Preliminary Investigation of the Effect of Compressibility on the Maximum Lift Coefficient, Special Report

Description: "Preliminary data are presented on the variation of the maximum lift coefficient with Mach number. The data were obtained from tests in the 8-foot high-speed tunnel of three NACA 16-series airfoils of 1-foot chord. Measurements consisted primarily of pressure-distribution measurements in order to illustrate the nature of the phenomena. It was found that the maximum lift coefficient of airfoils is markedly affected by compressibility even at Mach numbers as low as 0.2" (p. 1).
Date: February 1943
Creator: Stack, John; Fedziuk, Henry A. & Cleary, Harold E.
Partner: UNT Libraries Government Documents Department

Jet-Boundary Corrections to a Yawed Model in a Closed Rectangular Wind Tunnel

Description: Report presenting general formulas for determining the jet-boundary corrections to the angle of attack, the drag coefficient, the downwash, the pitching, rolling, and yawing-moment coefficients of complete powered yawed models, and to the increments of rolling and yawing-moment coefficients due to the ailerons on yawed models.
Date: February 1943
Creator: Swanson, Robert S.
Partner: UNT Libraries Government Documents Department

Site ``W`` description

Description: This site description of the Hanford Reservation from February 1943 gives size, topography, geology, population, water supply, railroad, highway, power, meteorological, and valuation information. Maps are included.
Date: February 15, 1943
Creator: Grady, J. A.
Partner: UNT Libraries Government Documents Department

Tail Buffeting

Description: "An approximate theory of buffeting is here presented, based on the assumption of harmonic disturbing forces. Two cases of buffeting are considered: namely, for a tail angle of attack greater and less than the stalling angle, respectively. On the basis of the tests conducted and the results of foreign investigators, a general analysis is given of the nature of the forced vibrations the possible load limits on the tail, and the methods of elimination of buffeting" (p. 1).
Date: February 1943
Creator: Abdrashitov, G.
Partner: UNT Libraries Government Documents Department

The Effects of Angle of Dead Rise and Angle of Afterbody Keel on the Resistance of a Model of a Flying-Boat Hull

Description: Report presenting a series of models of flying-boat hulls tested to determine the effects of the angle of dead rise and the angle of afterbody keel on resistance and spray characteristics. Three angles of dead rise and three angles of afterbody keel were investigated. The results are expressed in nondimensional coefficients.
Date: February 1943
Creator: Bell, Joe W. & Willis, John M., Jr.
Partner: UNT Libraries Government Documents Department

NACA Radio Ground-Speed System for Aircraft

Description: Report presenting a method utilizing the Doppler effect on radio signals for determining the speed and distance traveled of an airplane. The method is called the NACA radio ground-speed system and uses the standard radio transmitter already found in most aircraft. Flight tests were made in which the method was used and the results were consisted with calibrated airspeed indications and stop-watch measurements.
Date: February 1943
Creator: Hastings, Charles E.
Partner: UNT Libraries Government Documents Department

NACA Radio Ground-Speed System for Aircraft, Special Report

Description: "A method that utilizes the Doppler effect on radio signals for determining the speed of an airplane and the distance traveled by the airplane has been developed and found to operate satisfactorily. In this method, called the NACA radio ground-speed system, standard readily available radio equipment is used almost exclusively and extreme frequency stability of the transmitters is not necessary. No complicated equipment need be carried in the airplane, as the standard radio transmitter is usually adequate" (p. 1).
Date: February 1943
Creator: Hastings, Charles E.
Partner: UNT Libraries Government Documents Department

Piezoelectric Instruments of High Natural Frequency Vibration Characteristics and Protection Against Interference by Mass Forces

Description: "The exploration of the processes accompanying engine combustion demands quick-responding pressure-recording instruments, among which the piezoelectric type has found widespread use because of its especially propitious properties as vibration-recording instruments for high frequencies. Lacking appropriate test methods, the potential errors of piezoelectric recorders in dynamic measurements could only be estimated up to now. In the present report a test method is described by means of which the resonance curves of the piezoelectric pickup can be determined; hence an instrumental appraisal of the vibration characteristics of piezoelectric recorders is obtainable" (p. 1).
Date: February 1943
Creator: Gohlke, Werner
Partner: UNT Libraries Government Documents Department

Generalized performance selection charts for single-engine pursuit airplanes

Description: Report presenting an investigation of the effect of wing loading, power loading, and aspect ratio on the performance of pursuit airplanes. The study is based on data combined from specifications, wind-tunnel, and flight tests of various airplanes and presented in graphs.
Date: February 1943
Creator: Ivey, H. Reese; Stickle, George W. & Brevoort, Maurice J.
Partner: UNT Libraries Government Documents Department

The reduction of nonuseful pressure losses on air-cooled engine cylinders by means of improved finning and baffling

Description: Report presenting an analysis of the pressure drop that is required to cool a typically baffled radial engine, which shows that a total pressure drop of 58 pounds per square foot is necessary at sea level and 112 pounds per square foot is required at an altitude of 40,000 feet.
Date: February 1943
Creator: Wood, George P.
Partner: UNT Libraries Government Documents Department