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Summary of Data Relating to the Effects of Wing Machine-Gun and Cannon Installations on the Aerodynamic Characteristics of Airplanes

Description: Report presenting data obtained from tests of models and airplanes relating to the effects of various wing armament installations, which have been collected and analyzed. Three types of gun installations were considered: gun ports, protruding machine guns, and cannon. The ways that each type of installation affected the lift and drag characteristics are provided.
Date: January 1945
Creator: Quinn, John H., Jr.
Partner: UNT Libraries Government Documents Department

Measurement Room

Description: Tape adhered to wall upon which is written a string of numbers from right to left interrupted by strings of numbers written left to right.
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: 1969
Creator: Bochner, Mel
Partner: UNT College of Visual Arts + Design

A Method of Calibrating Airspeed Installations on Airplanes at Transonic and Supersonic Speeds by Use of Temperature Measurements

Description: Note presenting a method of calibrating airspeed installations on airplanes at transonic and supersonic speeds by use of instrumentation in the airplane only. A description of the method and some suggestions for increasing the accuracy of the method are provided.
Date: March 1950
Creator: Zolovcik, John A.
Partner: UNT Libraries Government Documents Department

Experimental results of an investigation of two methods of inflight thrust measurement applicable to afterburning turbojet engines with ejectors

Description: Report presenting an investigation in an altitude test chamber using a turbojet engine equipped with an afterburner and ejector to compare directly two techniques of determining thrust that are both applicable to flight installations. One method uses a swinging uncooled rake at the ejector outlet while the other requires extensive instrumentation to measure the momentum forces of systems and the force on the internal surface of the ejector nozzle. Results regarding the swinging-rake technique and internal-pressure technique are provided.
Date: May 2, 1958
Creator: Bloomer, Harry E.
Partner: UNT Libraries Government Documents Department

Measurements of pressure and temperature for appraisal of the temperature method of airspeed calibration in the lower stratosphere

Description: Investigation to determine whether the temperature and pressure conditions in the lower stratosphere would meet requirements of the temperature method for accurate calibration of airspeed installations. Although the temperature lapse rate was favorable for the method, large and erratic variations prevented accurate calibration. Results regarding pressure-temperature surveys and airspeed calibration are provided.
Date: March 1954
Creator: Lina, Lindsay J.
Partner: UNT Libraries Government Documents Department

TV Garden

Description: The installation artwork consists of several video monitors placed amongst many potted house plants.
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: 1974
Creator: Paik, Nam June
Partner: UNT College of Visual Arts + Design

An Experimental Investigation at Large Scale of an NACA Submerged Intake and Deflector Installation on the Rearward Portion of a Fuselage

Description: Report presenting an experimental investigation at low speed to determine the pressure-recovery and drag characteristics of an NACA submerged intake and deflector installation on the rearward portion of the fuselage of a model.
Date: August 30, 1950
Creator: Holzhauser, Curt A.
Partner: UNT Libraries Government Documents Department

Calibration of strain-gage installations in aircraft structures for the measurement of flight loads

Description: "A general method has been developed for calibrating strain-gage installations in aircraft structures, which permits the measurement in flight of the shear or lift, the bending moment, and the torque or pitching moment on the principal lifting or control surfaces. Although the stress in structural members may not be a simple function of the three loads of interest, a straightforward procedure is given for numerically combining the outputs of several bridges in such a way that the loads may be obtained. Extensions of the basic procedure by means of electrical combination of the strain-gage bridges are described which permit compromises between strain-gage installation time, availability of recording instruments, and data reduction time" (p. 1).
Date: August 12, 1952
Creator: Skopinski, T. H.; Aiken, William S., Jr. & Huston, Wilber B.
Partner: UNT Libraries Government Documents Department

Performance of Multiple Jet-Exit Installations

Description: Memorandum presenting the results of recent exploratory investigations of the performance of clustered jet-exit installations at Mach numbers from 0.60 to 3.05. Data presented in this report were obtained with tunnel-wall-mounted models with cold-air-jet exhaust. Results regarding base pressures, effect of boattailing, effect of afterbody-nozzle geometry, and terminal fairings are provided.
Date: July 7, 1958
Creator: Swihart, John M. & Nelson, William J.
Partner: UNT Libraries Government Documents Department

Design of power-plant installations pressure-loss characteristics of duct components

Description: "A correlation of what are believed to be the most reliable data available on duct components of aircraft power-plant installations is presented. The information is given in a convenient form and is offered as an aid in designing duct systems and, subject to certain qualifications, as a guide in estimating their performance. The design and performance data include those for straight ducts; simple bends of square, circular, and elliptical cross sections; compound bends; diverging and converging bends; vaned bends; diffusers; branch ducts; internal inlets; and an angular placement of heat exchangers" (p. 1).
Date: June 1944
Creator: Henry, John R.
Partner: UNT Libraries Government Documents Department

The Materials Testing Reactor

Description: The following report describes a reactor that was designed to provide a research facility for testing various materials in a high intensity radiation field.
Date: September 24, 1953
Creator: Weber, L. J.
Partner: UNT Libraries Government Documents Department

Federal Building and Facility Security

Description: This report discusses the security of federal government buildings and facilities that affect not only the daily operations of the federal government but also the health, well-being, and safety of federal employees and the public.
Date: March 24, 2010
Creator: Reese, Shawn & Tong, Lorraine H.
Partner: UNT Libraries Government Documents Department

Federal Building and Facility Security

Description: This report discusses the security of federal government buildings and facilities that affect not only the daily operations of the federal government but also the health, well-being, and safety of federal employees and the public.
Date: April 27, 2010
Creator: Reese, Shawn & Tong, Lorraine H.
Partner: UNT Libraries Government Documents Department

Supplement to Recommended Minimum Requirements for Plumbing: Progress Revision, May, 1931

Description: Report issued by the Bureau of Standards discussing revisions and supplements made to minimum plumbing requirements for residential and commercial buildings. The revisions and supplements to previous reports are presented. This report includes tables, and illustrations.
Date: 1931
Creator: United States. Bureau of Standards.
Partner: UNT Libraries Government Documents Department

A Frontal Passage

Description: The space is filled with a red light creating an environment.
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: 1994
Creator: Turrell, James
Partner: UNT College of Visual Arts + Design

Static-pressure error calibrations for nose-boom airspeed installations of 17 airplanes

Description: Report presenting a flight investigation to determine the static-pressure errors for nose-boom airspeed installations of 17 airplanes. Both research-type and service-type aircraft are covered in the investigation. Results indicated that the magnitude of static-pressure errors for the airspeed installations of all the airplanes is shown to vary with airplane geometric characteristics that include nose-boom length, fuselage diameter, and nose fineness ratio.
Date: March 13, 1957
Creator: Larson, Terry J.; Stillwell, Wendell H. & Armistead, Katharine H.
Partner: UNT Libraries Government Documents Department

Ground Tests of a Radial Air-Cooled Engine to Correct a Poor Circumferential Pressure-Recovery Distribution

Description: "This report presents the results of the tests of a power-plant installation to improve the circumferential pressure-recovery distribution at the face of the engine. An underslung "C" cowling was tested with two propellers with full cuffs and with a modification to one set of cuffs. Little improvement was obtained because the base sections of the cuffs were stalled. A set of guide vanes boosted the over-all pressures and helped the pressure recoveries for a few of the cylinders" (p. 1).
Date: January 28, 1948
Creator: Gallagher, James J.
Partner: UNT Libraries Government Documents Department

Investigation of the aerodynamic and icing characteristics of a recessed fuel cell vent assembly 3: NACA flush-inlet-type vent

Description: An investigation conducted in the icing research tunnel to determine aerodynamic and icing characteristics of two flush-inlet-type fuel cell vent installations. The vent tubes were mounted in two different locations in the two installations. The vents were aerodynamically investigated to obtain vent-tube static-pressure differentials and pressure surveys as a function of tunnel-air velocity and angle of attack.
Date: April 23, 1948
Creator: Ruggeri, Robert S.
Partner: UNT Libraries Government Documents Department

Drag and Propulsive Characteristics of Air-Cooled Engine-Nacelle Installations for Large Airplane

Description: "An investigation was conducted in the NACA full-scale wind tunnel to determine the drag and the propulsive efficiency of nacelle-propeller arrangements for a large range of nacelle sizes. In contrast with usual tests with a single nacelle, these tests were conducted with nacelle-propeller installations on a large model of a four-engine airplane. Data are presented on the first part of the investigation, covering seven nacelle arrangements with nacelle diameters from 0.53 to 1.5 times the wing thickness" (p. 301).
Date: 1942
Creator: Silverstein, Abe & Wilson, Herbert A., Jr.
Partner: UNT Libraries Government Documents Department