Search Results

open access

Pressure distribution over the fuselage of a PW-9 pursuit airplane in flight

Description: "This report presents the results obtained from pressure distribution tests on the fuselage of a PW-9 pursuit airplane in a number of conditions of flight. The investigation was made to determine the contribution of the fuselage to the total lift in conditions considered critical for the wing structure, and also to determine whether the fuselage loads acting simultaneously with the maximum tail loads were of such a character as to be of concern with respect to the structural design of other parts of the airplane. The results show that the contribution of the fuselage toward the total lift is small on this airplane" (p. 327).
Date: August 1, 1930
Creator: Rhode, Richard V. & Lundquist, Eugene E.
Partner: UNT Libraries Government Documents Department
open access

A Method of Estimating the Knock Rating of Hydrocarbon Fuel Blends

Description: "The usefulness of the knock ratings of pure hydrocarbon compounds would be increased if some reliable method of calculating the knock ratings of fuel blends was known. The purpose of this study was to investigate the possibility of developing a method of predicting the knock ratings of fuel blends. Two blending equations have been derived from an analysis based on certain assumptions relative to the cause of fuel knock" (p. 1).
Date: August 1, 1943
Creator: Sanders, Newell D.
Partner: UNT Libraries Government Documents Department
open access

A Method of Estimating the Knock Rating of Hydrocarbon Fuel Blends

Description: Report presenting two blending equations that have been derived from an analysis based on certain assumptions relative to the cause of fuel knock. The main purpose of this study was to investigate the possibility of developing a method of predicting the knock ratings of fuel blends.
Date: August 1, 1943
Creator: Sanders, Newell D.
Partner: UNT Libraries Government Documents Department
open access

Performance of NACA eight-stage axial-flow compressor designed on the basis of airfoil theory

Description: "The NACA has conducted an investigation to determine the performance that can be obtained from a multistage axial-flow compressor based on airfoil research. A theory was developed; an eight-stage axial-flow compressor was designed, constructed, and tested. The performance of the compressor was determined for speeds from 5000 to 14,000 r.p.m with varying air flow at each speed" (p. 81).
Date: August 1, 1944
Creator: Sinnette, John T., Jr.; Schey, Oscar W. & King, J. Austin
Partner: UNT Libraries Government Documents Department
open access

The metal fabrication program for the Clinton Engineer Works and the Hanford Engineer Works. Including the Dummy Slug Program and the Unbonded Slug Program -- Project 1553

Description: The uranium slugs were used as the charge into the pile for the manufacture of minute quantities of plutonium. So little was known of uranium`s commercially adaptable physical properties that it was relegated almost to the category of a laboratory curiosity. A series of experimental and developmental programs were inaugurated to determine not only the extrudability, machinability and other physical properties, but also the influence on these of microscopic quantities of impurities present in the uranium. This historical document describes these early studies in the following sections: exceptional characteristics of the slug program; extrusion; drawing, waging and rolling; outgassing and straightening; Project 1030 (procurement of an additional sixty tons of finished slugs over and above that quantity originally supplied to the Clinton Laboratories) Machining, grinding and grooving; development of canning methods; production of canned slugs; and The Dummy Slug program.
Date: August 1, 1945
Partner: UNT Libraries Government Documents Department
open access

Some Effects of Compressibility on the Flow Through Fans and Turbines

Description: "The laws of conservation of mass, momentum, and energy are applied to the compressible flow through a two-dimensional cascade of airfoils. A fundamental relation between the ultimate upstream and downstream flow angles, the inlet Mach number, and the pressure ratio across the cascade is derived. Comparison with the corresponding relation for incompressible flow shows large differences. The fundamental relation reveals two ranges of flow angles and inlet Mach numbers, for which no ideal pressure ratio exists" (p. 123).
Date: August 1, 1945
Creator: Perl, W. & Epstein, H. T.
Partner: UNT Libraries Government Documents Department
open access

A study of the Quartz Fiber Balance No. 1 (Information Report)

Description: This article is a de-classified document produced by Monsanto Chemical Company-Unit III in Dayton, Ohio. The date of the document is August 1, 1945, and the subject is the operation of a quartz fiber microbalance. In particular, the document examines whether temperature fluctuations affect the operation of the instrument. Data was presented to show that the accuracy of the instrument was indeed affected by ambient temperature.
Date: August 1, 1945
Creator: Haring, M. M.
Partner: UNT Libraries Government Documents Department
open access

A visual photographic study of cylinder lubrication

Description: From Summary: "A V-type engine provided with a glass cylinder was used to study visually the lubrication characteristics of an aircraft-type piston. Photographs and data were obtained with the engine motored at engine speeds up to 1000 r.p.m. and constant cylinder-head pressures of 0 and 50 pounds per square inch. A study was made of the orientation of the piston under various operating conditions, which indicated that the piston was inclined with the crown nearest the major-thrust cylinder face throughout the greater part of the cycle. The piston moved laterally in the cylinder under the influence of piston side thrust."
Date: August 1, 1945
Creator: Shaw, Milton C. & Nussdorfer, Theodore
Partner: UNT Libraries Government Documents Department
open access

Fuel investigation in a tubular-type combustor of a turbojet engine

Description: A series of 11 fuels ranging in volatility and including various types of hydrocarbons were tested in a single tubular combustion chamber of a turbojet engine under inlet-air conditions simulating engine operation at two speeds at an altitude of 40,000 feet. Temperature-rise data at various fuel-air ratios were obtained for each set of air-flow conditions. Results regarding the effect of combustor inlet-air conditions on temperature rise, four different series of tests, and a review of some general considerations are provided.
Date: August 1, 1947
Creator: Tischler, Adelbert O. & Dittrich, Ralph T.
Partner: UNT Libraries Government Documents Department
open access

GAS COOLED PEBBLE PILES

Description: No Description Available.
Date: August 1, 1947
Creator: Amorosi, A.
Partner: UNT Libraries Government Documents Department
open access

Quarterly Report May 1947 to August 1947 : Biology Division

Description: The following documents were compiled into a quarterly report that was to be published in the Radiobiology Volume of the PPR. The following reports provide data from the Biology department of the University of Chicago between May and August of 1947.
Date: August 1, 1947
Creator: Brues, Austin M.
Partner: UNT Libraries Government Documents Department
open access

CHEMICAL SEPARATION OF THE ISOTOPES OF URANIUM

Description: No Description Available.
Date: August 1, 1948
Creator: Woodard, R. W.; Twichell, L. P.; Lee, D. A.; Petretzky, P. B.; Drury, J. S.; Williams, R. D. et al.
Partner: UNT Libraries Government Documents Department
open access

Fluorocarbons and Fluoroorganic Compounds. Section 2

Description: No Description Available.
Date: August 1, 1948
Creator: Gabbard, J. L.; Gibson, J. D.; Faloon, A. V.; Rapp, K. E.; Frey, S. E. & Walker, D. V.
Partner: UNT Libraries Government Documents Department
open access

General chemistry progress report

Description: This document is a de-classified August 1948 General Chemistry progress report from Monsanto Chemical`s Mound facility. General chemical properties of Postum compounds are discussed, and experimental data on these properties are presented.
Date: August 1, 1948
Creator: Barth, S.; Ford, M. & Dismore, P.
Partner: UNT Libraries Government Documents Department
open access

The Isolation and Properties of Curium

Description: The isolation of curium, element number 96, in relatively pure form has been accomplished. A method, involving a solvent extraction process, is given for the purification of americium from lanthanum and other ions. The discovery of a higher oxidation state of americium led to a method of separating americium from curium. Separation of the two elements was also accomplished by use of ion exchange resins. The details of the isolation of curium are given; the results of the spectrographic analysis, specific activity measurement, and calorimetric determination of half life showed the curium to be relatively pure. The absorption of light of various wave-lengths by an aqueous solution of Cm(III) is described, and some physical effects of the radiation from the curium are noted.
Date: August 1, 1948
Creator: Werner, Louis B.
Partner: UNT Libraries Government Documents Department
open access

Tentative Specification for Waste Heat Steam Boiler

Description: Report discussing specifications for the design of a waste heat steam boiler "for the purpose of generating steam to operate a condensing steam turbine electric generator from the clean hot radioactive air that has cooled the atomic energy reactor of [a] laboratory under a pressure less than atmospheric."
Date: August 1, 1948
Creator: Williams, C.
Partner: UNT Libraries Government Documents Department
open access

An Experimental Investigation at Large Scale of Single and Twin Naca Submerged Side Intakes at Several Angles of Sideslip

Description: Report presenting the results of an experimental investigation to determine the pressure-recovery and mass-flow characteristics of single and twin NACA submerged intakes on the sides of a fuselage at various angles of sideslip. Tests were conducted with single and twin submerged intakes on a model of a fighter-type airplane.
Date: August 1, 1949
Creator: Martin, Norman J. & Holzhauser, Curt A.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen