UNT Libraries Government Documents Department - 70 Matching Results

Search Results

prev Results: 25 - 48 next
open access

Flight and Test-Stand Investigation of High-Performance Fuels in Modified Double-Row Radial Air-Cooled Engines 2: Flight Knock Data and Comparison of Fuel Knock Limits With Engine Cooling Limits in Flight

Description: Report discussing tests on three fuels in a 14-cylinder double-row radial air-cooled engine at different engine speeds, blower ratios, and spark settings.
Date: August 4, 1945
Creator: White, H. Jack; Pragliola, Philip C. & Blackman, Calvin C.
Item Type: Refine your search to only Report
open access

Flight and Test-Stand Investigation of High-Performance Fuels in Modified Double-Row Radial Air-Cooled Engines 3: Knock-Limited Performance of 33-R as Compared with a Triptane Blend and 28-R in Flight

Description: "A comparison has been made in flight of the antiknock characteristics of 33-R fuel with that of 28-R and a triptane blend. The knock-limited performance of the three fuels - 33-R, a blend of 80 percent 28-R plus 20 percent triptane (leaded to 4.5 ml TEL/gal), and 28-R - was investigated in two modified 14-cylinder double-row radial air-cooled engines. Tests were conducted on the engines as installed in the left inboard nacelle of an airplane. A carburetor-air temperature of approximately 85 de… more
Date: August 1945
Creator: Blackman, Calvin C. & White, H. Jack
Item Type: Refine your search to only Report
open access

Heat-Transfer Tests of Aqueous Ethylene Glycol Solutions in an Electrically Heated Tube

Description: "As part of an investigation of the cooling characteristics of liquid-cooled engines, tests were conducted with an electrically heated single-tube heat exchanger to determine the heat-transfer characteristics of AN-E-2 ethylene glycol and other ethylene glycol-water mixtures. Similar tests were conducted with water and commercial butanol (n-butyl alcohol) for check purposes. The results of tests conducted at an approximately constant liquid-flow rate of 0.67 pound per second (Reynolds number, 1… more
Date: August 1945
Creator: Bernardo, Everett & Eian, Carroll S.
Item Type: Refine your search to only Report
open access

Hinge Moments of Sealed-Internal-Balance Arrangements for Control Surfaces 1: Theoretical Investigation

Description: Report presenting the results of a theoretical analysis of the hinge-moment characteristics of various sealed-internal-balance arrangements for control surfaces. The results of the investigation indicated that the most nearly linear control-surface hinge-moment characteristics can probably be obtained from a flexible seal over a narrow gap, which is so installed that the motion of the seal is restricted to a region behind the point of attachment of the seal to the wing structure.
Date: August 1945
Creator: Murray, Harry E. & Erwin, Mary A.
Item Type: Refine your search to only Report
open access

Hinge Moments of Sealed-Internal-Balance Arrangements for Control Surfaces 2: Experimental Investigation of Fabric Seals in the Presence of a Thin-Plate Overhang

Description: Report presenting tests in a seal test chamber to determine the hinge moments contributed by the fabric seal in an internal-balance arrangement employing a thin-plate overhang. The tests were performed with various widths of fabric sealing various widths of flap-nose gap, with a horizontal, a vertical, and a circular type of wing structure forward of the balance, and with various heights of balance chamber. Results regarding seal-profile photographs, desired seal-moment characteristics, experim… more
Date: August 1945
Creator: Fischel, Jack
Item Type: Refine your search to only Report
open access

Infrared-spectrophotometric analysis of binary and ternary mixtures of liquid hydrocarbons

Description: Report presenting an investigation to determine the suitability and precision of a modified, routine-model, infrared spectrophotometer for analyzing binary and ternary mixtures of aircraft-fuel components. Analyses by means of infrared measurements are described for the following hydrocarbon mixtures: 12 known mixtures of 2,2,3-trimethylbutane (triptane) and cyclohexane, 4 known mixtures of triptane and benzene, and 4 known mixtures of triptane, cyclohexane, and benzene.
Date: August 1945
Creator: Cleaves, Alden P. & Sherrick, Mildred E.
Item Type: Refine your search to only Report
open access

An Investigation of Aircraft Heaters 18: A Design Manual for Exhaust Gas and Air Heat Exchangers

Description: Report presenting a summary of a series of reports regarding heat exchangers, and in particular, the design of exhaust gas and air heat exchangers. The four parts included are a summary of heat transfer equations, single pass heat exchangers, heater performance in flight, and appendicies with additional aerodynamic information.
Date: August 1945
Creator: Boelter, L. M. K.; Martinelli, R. C.; Romie, F. E. & Morrin, E. H.
Item Type: Refine your search to only Report
open access

Investigation of Effect of Sideslip on Lateral Stability Characteristics 3: Rectangular Low Wing on Circular Fuselage With Variations in Vertical-Tail Area and Fuselage Length With and Without Horizontal Tail Surface

Description: Report presenting power-off tests made in the 6- by 6-foot test section of the stability tunnel to determine the variation of the static lateral stability characteristics with vertical-tail area, fuselage length, and wing dihedral. The results are presented as curves showing the variation of the static-lateral-stability slopes with angle of attack, and the rolling-moment, yawing-moment, and lateral-force coefficients with angle of yaw.
Date: August 1945
Creator: Hollingworth, Thomas A.
Item Type: Refine your search to only Report
open access

Lifting-Surface-Theory Values of the Damping in Roll and of the Parameter Used in Estimating Aileron Stick Forces

Description: Report presenting an investigation by lifting-surface theory of a thin elliptic wing of aspect ratio 6 in a steady roll by means of the electromagnetic-analogy method. The results obtained by lifting-surface theory indicate that the damping in roll for a wing of aspect ratio of 6 is 13 percent less than that give by lifting-line theory and 5 percent less than that given by lifting-line theory with the edge-velocity correction derived by Robert T. Jones applied. Simple practical methods of apply… more
Date: August 1945
Creator: Swanson, Robert S. & Priddy, E. LaVerne
Item Type: Refine your search to only Report
open access

Longitudinal-Trim Tests of a 0.059-Scale Model of the Curtiss-Wright XP-55 Airplane

Description: Report discussing tests of a model of the XP-55 to determine which modifications would prevent trim at large positive and negative angles of attack. The model was found to not trim at flat attitudes if the large wing tips with an extension of the wing-tip trimmers and a large elevator are installed on the airplane.
Date: August 1945
Creator: MacDougall, George F., Jr. & Schneiter, Leslie E.
Item Type: Refine your search to only Report
open access

The Metal-Dielectric Junction of High-Voltage Insulators in Vacuum and Magnetic Field

Description: From introduction: "This study is concerned with the shape of the electrodes of high-voltage insulator and with the method of joining them to the dielectric. The study is limited to insulators operating in vacuum, with special interest in the cases where strong magnetic fields are present. It is further limited to insulators with the high-voltage electrodes maintained at negative potential. The object of the study was to obtain information that would aid in improving the design of the insulator… more
Date: August 8, 1945
Creator: Kjofoid, M. J.; Alger, Raymond S. & Graves, D.
Item Type: Refine your search to only Report
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 th… more
Date: August 1, 1945
Item Type: Refine your search to only Report
open access

A method of analysis of V-G records from transport operations

Description: A method has been developed for interpreting v-g records taken during the course of commercial transport operation. This method involves the utilization of fairly simple statistical procedures to obtain "flight envelopes," which predict that, on the average, in a stated number of flight hours, one value of airspeed will exceed the envelope, and one positive and one negative acceleration increment will exceed the envelope with equal probability of being experienced at any airspeed. Comparison wi… more
Date: August 31, 1945
Creator: Peiser, A. M. & Wilkerson, M.
Item Type: Refine your search to only Report
open access

A Method of Analysis of V-G Records from Transport Operations

Description: A method has been developed for interpreting V-G records taken during the course of commercial transport operation. This method involves the utilization of fairly simple statistical procedures to obtain "flight envelopes," which predict that, on the average, in a stated number of flight hours, one value of airspeed will exceed the envelope, and one positive and one negative acceleration increment will exceed the envelope with equal probability of being experienced at any airspeed. Comparison wi… more
Date: August 31, 1945
Creator: Peiser, A. M. & Wilkerson, M.
Item Type: Refine your search to only Report

Newsmap for the Armed Forces : Japan's empire, its advance and retreat

Description: Front: Text chart of the history of Japan's empire from 1895 to 19 August, 1945. 4 maps: Japanese empire, 1931; Japanese empire, Dec. 1941; Japanese empire, Aug. 1942 ; Japanese holdings as war ended. Back: "Please...get there and back!": contains photographs and text about the Army Transportation Corps. Includes picture of a woman's face.
Date: August 27, 1945
Creator: [United States.] Army Service Forces. Army Information Branch.
Item Type: Refine your search to only Poster

Newsmap. For the Armed Forces. V-E Day + 13 weeks, 190th week of U.S. participation in the war

Description: Front: "In a few months we expect to run out of targets in Japan"--Maj. Gen. C. E. LeMay. Text describes targets in Japan. Map: Japan. Relief shown pictorially. Includes photograph of Kobe : under B-29 attack, 4 June 45. Back: Special devices. "Dedicated to the safe and rapid training of pilots and aircrewmen." Photographs: Recognition; Navigation; Maintenance; Bombing and torpedoing; Operational flight training; Terrain recognition; Anti-aircraft; Fixed gunnery; Free gunnery.
Date: August 6, 1945
Creator: [United States.] Army Service Forces. Army Information Branch.
Item Type: Refine your search to only Poster

Newsmap. For the Armed Forces. V-E Day + 15 weeks, 192nd week of U.S. participation in the war

Description: Front: Text describes attacks on Japan. Map of East Asia:The Knockout blows fall. Includes photographs: Soviet Union sends powerful Far Eastern forces into Manchuria, American plane drops atomic bomb on Japanese city of Hiroshima, Third fleet warships and planes. Back: Advance base sectional docks. Description and photographs of Navy floating dry docks.
Date: August 20, 1945
Creator: [United States.] Army Service Forces. Army Information Branch.
Item Type: Refine your search to only Poster
open access

On Two-Dimensional Flows of Compressible Fluids

Description: "This report is devoted to the study of two-dimensional steady motion of a compressible fluid. It is shown that the complete flow pattern around a closed obstacle cannot be obtained by the method of Chaplygin. In order to overcome this difficulty, a formula for the stream-function of a two-dimensional subsonic flow is derived" (p. 1).
Date: August 1945
Creator: Bergman, Stefan
Item Type: Refine your search to only Report
open access

Operating stresses in aircraft-engine crankshafts and connecting rods 2: instrumentation and test results

Description: Report presenting an investigation to develop methods and equipment for the measurement of operating stresses in aircraft-engine crankshafts and connecting rods. The results indicate that the measurement of stresses in connecting rods is feasible. Results regarding stresses in the crankshaft and stresses in the master connecting rod are provided.
Date: August 1945
Creator: Dutee, Francis J.; Phillips, Franklyn W. & Calvert, Howard F.
Item Type: Refine your search to only Report
open access

Piston-Ring Vibration and Breakage

Description: Report presenting testing to determine the stresses and bending moments required to break pieces 1 inch or less in length from the ends of cast-iron, keystone, compression piston rings. Strain gages were used to determine the stress pattern for various modes of vibration. The maximum-stress points of vibrating piston rings were at the antinodes or points of maximum deflection.
Date: August 1945
Creator: Nettles, J. C. & Meyer, André J., Jr.
Item Type: Refine your search to only Report
open access

[Plant data for 200 Areas]

Description: This document provides data for 200 Area plants for the period of November 30, 1945 to June 10, 1946 (Building 292-B) and November 30, 1945 to August 22, 1946 (Building 292-T).
Date: August 31, 1945
Creator: Lindvig, P. E.
Item Type: Refine your search to only Report
Back to Top of Screen