Technical Report Archive & Image Library (TRAIL) - 119 Matching Results

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Acoustics of a Nonhomogeneous Moving Medium

Description: Report discussing theoretical basis of the acoustics of a moving nonhomogeneous medium. Experiments that illustrate or confirm some of the theoretical explanation or derivation of these acoustics are also included.
Date: February 1956
Creator: Blokhintsev, D. I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Afterburner Performance With Combustion-Chamber Lengths From 10 to 62 Inches at Several Afterburner-Inlet Temperatures

Description: Effect of variation of combustion chamber length and inlet temperature on low pressure-loss sea level afterburner. A 70-percentage-point reduction in combustion efficiency resulted when the combustion-chamber length was reduced from 62 to 10 inches.
Date: February 1, 1956
Creator: Ciepluch, Carl C.; Velie, Wallace W. & Burley, Richard R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Afterburner performance with combustion-chamber lengths from 10 to 62 inches at several afterburner-inlet temperatures

Description: Report presenting an investigation to determine the effect of variation of afterburner combustion-chamber length and inlet temperature on a low-pressure-loss sea-level afterburner.
Date: February 1956
Creator: Ciepluch, Carl C.; Velie, Wallace W. & Burley, Richard R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Bodies of revolution having minimum drag at high supersonic airspeeds

Description: Report presenting calculations of approximate shapes of nonlifting bodies having minimum pressure foredrag at higher supersonic airspeeds. The investigation is carried out for various combinations of the conditions of given body length, base diameter, surface area, and volume.
Date: February 1956
Creator: Eggers, A. J., Jr.; Resnikoff, Meyer M. & Dennis, David H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Comparison of landing-impact velocities of first and second wheel to contact from statistical measurements of transport airplane landings

Description: Report presenting a statistical analysis of vertical velocities at second wheel to touch made from photographs of 353 landings of transport airplanes at Washington National Airport. Results regarding gusts, rolling direction, and number of engines are provided.
Date: February 1956
Creator: Harrin, Eziaslav N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cross flows in laminar incompressible boundary layers

Description: Report presenting an analysis derived for the three-dimensional boundary-layer flow over a flat surface with a leading edge under main-flow streamlines that are translates and representable by polynomial expressions. The boundary layers are laminar and incompressible and the profiles of their velocity components have similarity with respect to rectangular coordinates.
Date: February 1956
Creator: Hansen, Arthur G. & Herzig, Howard Z.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effect of pneumatic de-icers and ice formations on aerodynamic characteristics of a airfoil

Description: Report presenting measurements of lift, drag, and pitching moment of an NACA 0011 airfoil in icing using two types of pneumatic de-icers, one with spanwise inflatable tubes and the other with chordwise tubes. Results regarding the airfoil characteristics with the de-icer operating and effect of primary ice formation on drag, lift, and pitch with the de-icer inoperative are provided.
Date: February 1956
Creator: Bowden, Dean T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effect of Transverse Body Force on Channel Flow With Small Heat Addition

Description: Note presenting an analysis of the steady, compressible, inviscid channel flow to which heat is added at a cross-sectional plane and which is also subject to a transverse body force. The prime parameters governing the flow are a dimensionless heat parameter and the Mach and Froude numbers. Solutions were obtained for uniform or nonuniform heat addition at a cross-sectional plane under the simplifying assumption of either small Mach number or large Froude number.
Date: February 1956
Creator: Ostrach, Simon & Moore, Franklin K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effects of two trailing-edge controls on the aerodynamic characteristics of a rectangular wing and body combination at Mach numbers from 3.00 and 5.05

Description: Report presenting an investigation made to determine experimentally the effects of two types of trailing-edge controls on the aerodynamic characteristics of a wing-body combination consisting of a 4-percent-thick wing of rectangular plan form and a slender body of revolution. The variations of lift coefficient with angle of attack of the flap-wing-body combination and spoiler-wing-body combination were generally nonlinear. Results regarding the trailing-edge flap control and trailing-edge spoil… more
Date: February 1, 1956
Creator: Gloria, Hermilo R. & Wong, Thomas J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Enthalpies and Heat Capacities of Solid and Molten Fluoride Mixtures

Description: The enthalpies and heat capacities of seventeen fluoride mixtures in the liquid state have been determined using Bunsen Ice Calorimeters and copper block calorimeters. The fluoride mixtures were composed of the fluorides of two or more of the following metals: lithium, sodium, potassium, beryllium, zirconium, and uranium. The enthalpies and heat capacities of most of these mixtures were studied in the solid state also. Estimates of the heat of fusion have been made. General empirical equations … more
Date: February 1, 1956
Creator: Powers, W. D. & Blalock, G. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An experimental investigation of the scale relations for the impinging water spray generated by a planing surface

Description: Report presenting an experimental investigation to determine the scale effects of the forces from water spray generated by a flat rectangular planing surface and impinging on a collector plate representative of an aerodynamic surface or other part of a water-based airplane. Lift and drag forces on the flat rectangular planing surface and the spray-collector plate were measured.
Date: February 1956
Creator: McBride, Ellis E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental Investigation of the Vibrations of a Built-Up Rectangular Box Beam

Description: Note presenting experimental modes and frequencies of a uniform built-up box beam and comparisons between experimental and theoretical frequencies. 14 natural beam frequencies obtained from vibration tests of a built-up box beam are presented.
Date: February 1956
Creator: Kordes, Eldon E. & Kruszewski, Edwin T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Friction studies of graphite and mixtures of graphite with several metallic oxides and salts at temperatures to 1000 degrees F

Description: Report presenting an experimental friction study using graphite and mixtures of graphite with lead oxide, cadmium oxide, sodium sulfate, or cadmium sulfate as solid lubricants. Runs were made at temperatures up to 1000 degrees Fahrenheit with various steel and Inconel combinations.
Date: February 1956
Creator: Peterson, Marshall B. & Johnson, Robert L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Gust-load and airspeed data from one type of two-engine airplane on six civil airline routes from 1947 to 1955

Description: Report presenting an analysis of approximately 70,000 hours of V-G data from one type of two-engine transport airplane to determine the severity and frequency of occurrence of the gust loads and gusts. The data were obtained during routine feeder-line and short-haul commercial operations in six different routes over the course of eight years. Results regarding the distribution of acceleration, gust velocity, and airspeed, confidence bends, and acceleration and gust velocity envelopes are provid… more
Date: February 1956
Creator: Walker, Walter G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Impingement of water droplets on a rectangular half body in a two-dimensional incompressible flow field

Description: From Summary: "Trajectories of water droplets moving in the ideal two-dimensional flow field ahead of a body of rectangular cross section and infinite extent in the downstream direction have been calculated by means of a differential analyzer. Data on collection efficiency and distribution of water impingement are presented."
Date: February 1956
Creator: Lewis, William & Brun, Rinaldo J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Impingement of Water Droplets on a Rectangular Half Body in a Two-Dimensional Incompressible Flow Field

Description: "Trajectories of water droplets moving in the ideal two-dimensional flow field ahead of a body of rectangular cross section and infinite extent in the downstream direction have been calculated by means of a differential analyzer. Data on collection efficiency and distribution of water impingement are presented" (p. 1).
Date: February 1956
Creator: Lewis, William & Brun, Rinaldo J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Influence of Copper Ions on Adherence of Vitreous Coatings to Stainless Steel

Description: Note presenting an investigation of the effect of copper oxide in promoting the adherence of vitreous coatings to AISI type 321 stainless steel. It was found that the copper ions in the coating produced a significant increase in adherence on both pickled and sandblasted surfaces but that the effect of the copper decreased with increased firing temperature and increased firing time for the pickled specimens.
Date: February 1956
Creator: Moore, D. G. & Eubanks, A. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An investigation at Mach numbers of 1.41 and 2.01 of the aerodynamic characteristics of a swept-wing supersonic bomber configuration

Description: Report presenting an investigation of a swept-wing supersonic bomber configuration in the 4- by 4-foot supersonic pressure tunnel. Testing occurred at Mach numbers of 1.41 and 2.01 and a designated Reynolds number based on the wing mean aerodynamic chord. The model had a tapered wing with an aspect ratio of 3.5, a taper ratio of 0.2, a thickness ratio of 5.5 percent and 47 degrees sweep of the quarter-chord line. The investigation included the longitudinal and lateral force characteristics and … more
Date: February 1, 1956
Creator: Smith, Norman F. & Hasel, Lowell E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An investigation of the aerodynamic characteristics at transonic Mach numbers of a swept-wing supersonic bomber configuration

Description: Report presenting an investigation of the aerodynamic characteristics of a swept-wing supersonic bomber configuration conducted in the 8-foot transonic tunnel. The wing had an aspect ratio of 3.5, taper ratio of 0.2, 47 degrees of sweepback of the 0.25-chord line, and airfoil sections which were 5.5 percent thick parallel to the plane of symmetry. Results regarding the longitudinal force characteristics, effects of wing incidence, a modified wing, various auxiliary wing devices, and horizontal-… more
Date: February 1, 1956
Creator: Bielat, Ralph P. & Cooper, J. Lawrence
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Laminar Flow About a Rotating Body of Revolution in an Axial Airstream

Description: We have set ourselves the problem of calculating the laminar flow on a body of revolution in an axial flow which simultaneously rotates about its axis. The problem mentioned above, the flow about a rotating disk in a flow, which we solved some time ago, represents the first step in the calculation of the flow on the rotating body of revolution in a flow insofar as, in the case of a round nose, a small region about the front stagnation point of the body of revolution may be replaced by its tange… more
Date: February 1956
Creator: Schlichting, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A method for obtaining statistical data on airplane vertical velocity at ground contact from measurements of center-of-gravity acceleration

Description: Report presenting a method in which the contact vertical velocities of airplanes are obtained on a statistical basis from measurements of maximum incremental center-of-gravity acceleration. 268 landings with a small trainer airplane using this method have been made. Data regarding calibration curves, some results obtained during landings of a large flexible airplane, and the possibility of using only analytical methods for calibration are provided.
Date: February 1956
Creator: Dreher, Robert C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Methods and Operations at the Kaiser Steel Corporation Eagle Mountain Iron Mine, Riverside County, California

Description: Report issued by the U.S. Bureau of Mines discussing the mining methods and operations of open-pit iron mines in Riverside County, California. History and geology of the mines are presented. This report includes maps, tables, illustrations, and photographs.
Date: February 1956
Creator: Trengove, Russel R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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