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Some Effects of Aileron Deflection on the Static Lateral and Directional Aerodynamic Characteristics of Four Contemporary Airplane Models

Description: Memorandum presenting some effects of aileron deflection on the static lateral and directional aerodynamic characteristics of four airplane models which are representative of aircraft capable of flight at supersonic speeds. The results are presented for subsonic Mach numbers ranging from 0.60 to 0.90 and for supersonic Mach numbers ranging from 1.20 to 1.90. They are limited to the most pertinent aerodynamic effects of ailerons contributing to the lateral and directional characteristics of each… more
Date: July 23, 1957
Creator: Smith, Willard G. & Intrieri, Peter F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Material Compatibility With Gaseous Fluorine

Description: Report presenting static tests on the compatibility of gaseous fluorine with various liquids, solid plastics, waxes, and greases at pressures of 0 and 1500 pounds per square inch gage and atmospheric temperature. Several materials were found to be compatible at atmospheric pressure, but only Teflon and ruby were compatible under static conditions at 1500 pounds per square inch gage.
Date: January 23, 1957
Creator: Price, Harold G., Jr. & Douglass, Howard W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation of a 1/22-Scale Model of the Republic F-105 Airplane in the Langley 8-Foot Transonic Tunnel: Lateral, Directional, and Additional Longitudinal Static Stability and Control

Description: Report presenting an investigation of the aerodynamic characteristics of various configurations of the Republic F-105 at Mach numbers from 0.60 to 1.13. The primary focus of this report are the static lateral and directional stability and control characteristics of the model. Results regarding force and moment results, longitudinal characteristics, lateral and directional characteristics.
Date: August 23, 1957
Creator: Luoma, Arvo A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aerodynamic Loads on Tails at High Angles of Attack and Sideslip

Description: "Results are presented for the loads and moments acting on the individual tail surfaces of a body-tail combination over a wide range of angles of attack and sideslip. The effects of forebody length and panel-panel interference on the characteristics are included. It is shown that large nonlinear variations in these loads and moments, which occur at some combinations of angle of attack and sideslip, cannot be predicted by low-angle theory" (p. 1).
Date: July 23, 1957
Creator: Spahr, J. Richard & Polhamus, Edward C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation of 70 percent trimethyl borate 30 percent methyl alcohol fuel mixture in a single J33 combustor and in a J33 turbojet engine

Description: Report presenting an experimental investigation on a single turbojet engine combustor and on a turbojet engine using a fuel mixture of 70 percent trimethyl borate and 30 percent methyl alcohol. Results regarding the single combustor's deposition, combustion efficiency, ignition, temperature distribution, pressure drop and the engine operation are provided.
Date: January 23, 1957
Creator: Schafer, Louis J., Jr. & Hickel, Robert O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Experimental Investigation of Creep Bending and Buckling of Thin Circular Cylindrical Shells

Description: "Forty-three cylinders of 40-inch length and 16-inch diameter, made of 5052-0 aluminum-alloy sheets of 0.023-, 0.040-, 0.051-, and 0.064-inch thickness, were subjected to bending moments constant along the cylinder and in time in an oven which maintained a constant temperature of 500 degrees Fahrenheit during the test. All the cylinders failed by buckling. The time that elapsed between load application and collapse was measured" (p. 1).
Date: July 23, 1957
Creator: Erickson, Burton; Patel, Sharad A.; French, Francis W.; Lederman, Samuel & Hoff, N. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effect of Boundary Solidity of Planing Lift Obtained in a High-Speed Water Jet With a Single Longitudinal Slot in Each Rigid Boundary

Description: Report discussing the hydrodynamic planing-lift forces of a model of a rectangular jet with several boundaries with slots in them in order to obtain varying boundary solidities. The lift coefficients at the different boundary solidities were compared to computed values from an equation. Information about the effects of boundary solidity, the level of optimum solidity, and the effects of speed is provided.
Date: October 23, 1957
Creator: Weinflash, Bernard
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Material compatibility with gaseous fluorine

Description: Static tests on the compatibility of fluorine with non-metals at atmospheric temperature eliminated many materials from further consideration for use in fluorine systems. Several materials were found compatible at atmospheric pressures. Only Teflon and ruby (aluminum oxide) were compatible at 1500 pounds per square inch gage.
Date: January 23, 1957
Creator: Price, Harold G., Jr. & Douglass, Howard W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hydrodynamic investigation of a model of a supersonic multijet water-based aircraft with engines exhausting from the step

Description: Report presenting an investigation of the hydrodynamic characteristics of a multijet water-based aircraft capable of supersonic speeds and with jet engines exhausting through the step. The step engine exhausts were found to considerably increase afterbody wetting and smooth-water resistance, but they had no significant effect on longitudinal stability. Results regarding spray characteristics, resistance and stability at constant speed, take-off stability, landing stability, and jet noise are pr… more
Date: August 23, 1957
Creator: Blanchard, Ulysse J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Two-dimensional cascade tests of NACA 65-(C(sub zeta)(sub o))A(sub 10))10 blade sections at typical compressor hub conditions for speeds up to choking

Description: Report presenting two-dimensional porous-wall cascade tests of specified NACA blade sections at typical compressor hub conditions at speeds up to choking. For typical compressor blade hub sections, the angle of attack for best operation at high Mach numbers is about 6 degrees higher than the design angle of attack for low speeds. Results regarding the 65-series blade tests and circular-arc blade-section tests are provided.
Date: October 23, 1957
Creator: Emery, James C. & Dunavant, James C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Free-flight skin-temperature and surface-pressure measurements on a highly polished nose having a 100 degree total-angle cone and a 10 degree half-angle conical flare section up to a Mach number of 4.08

Description: Report presenting measurements of the skin temperature and surface pressure on a large-scale, highly polished nose with a relatively sharp-tipped 100 degree total-angle cone followed by a conical flare section of 10 degree half-angle. Heating on the forward 3.0 to 4.5 inches of the 100 degrees cone was generally lower than that on the rearward portion.
Date: August 23, 1957
Creator: Rashis, Bernard & Bond, Aleck C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of Wing Loads on a Flexible Swept-Wing Jet Bomber During Push-Pull Maneuvers

Description: Report presenting measurements of the loads of the wing of a Boeing B-47A medium bomber using strain-gage instrumentation during 23 symmetrical push-pull maneuvers at a variety of altitudes, Mach numbers, and gross weights. Time histories of aerodynamic shear, bending moment, and torque at each of four spanwise stations on the left wing and one on the right wing were created. Based on the results, presently available methods seem to be capable of predicting additional and basic loads accurately… more
Date: July 23, 1957
Creator: Gainer, Patrick A. & Harper, Paul W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of Control Profile on the Oscillating Hinge-Moment and Flutter Characteristics of a Flap-Type Control at Transonic Speeds

Description: Report discussing testing to determine the effects of control profile on the dynamic hinge-moment and flutter characteristics of a trailing-edge flap-type control. A conventional control and two control profile modifications were examined. Information about spring moments is also provided.
Date: August 23, 1957
Creator: Moseley, William C., Jr. & Price, George W., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of Jet Exhausts on Flight-Determined Longitudinal and Lateral Dynamic Stability Characteristics of the Douglas D-558-II Research Airplane

Description: Memorandum presenting a flight investigation using pulse techniques to determine longitudinal and lateral dynamic stability characteristics of the D-558-II research airplane with particular reference to the jet exhaust effects of the rocket engine. Results regarding the longitudinal stability characteristics, and lateral stability characteristics are provided.
Date: August 23, 1957
Creator: Wolowicz, Chester H. & Rediess, Herman A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aerodynamic and hydrodynamic characteristics of a proposed supersonic multijet water-based hydro-ski aircraft with a variable-incidence wing

Description: From Introduction: "The configuration described in this paper represents one approach to such an airplane and the results of the wind-tunnel and tank evaluations are presented. In the present investigation, the aerodynamic longitudinal characteristics over a Mach number range from 0.6 to 1.97 were obtained."
Date: October 23, 1957
Creator: Petynia, William W.; Hasson, Dennis F. & Spooner, Stanley H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Preliminary Indications of the Cooling Achieved by Ejecting Water Upstream From the Stagnation Point of Hemispherical, 80 Degree Conical, and Flat-Faced Nose Shapes at a Stagnation Temperature of 4,000 F

Description: Memorandum presenting an investigation of the effectiveness of water-vaporization cooling that would be obtained by ejecting water upstream from the stagnation point conducted in a liquid-fuel rocket jet as a stagnation temperature of 4000 degrees Fahrenheit.
Date: October 23, 1957
Creator: Rashis, Bernard
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Experimental investigation of several afterburner configurations on a J79 turbojet engine

Description: Report presenting an investigation in the altitude test chamber to evaluate several afterburner configurations on the XJ79 engine. Data were obtained from nine configurations which show the effect on burner performance of increased burner diameter and modifications to the flameholder, fuel system, and flow swirl.
Date: September 23, 1957
Creator: Bloomer, Harry E. & Campbell, Carl E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation at Transonic Speeds of the Effects of Inlet-Lip Sweep on the Internal-Flow Characteristics of a Semielliptical Air Inlet With an Inlet-Lip Stagger of 30 Degrees

Description: Report presenting an investigation in the transonic blowdown tunnel to determine the effects of inlet-lip sweep angle on the internal-flow characteristics of a semielliptical scoop-type inlet with an inlet lip stagger of 30 degrees. the testing was performed at a range of Mach numbers and mass-flow ratios. Results regarding flow over the nose, total-pressure recovery at inlet, flow distortions at inlet, boundary-layer control, and inlet performance are presented.
Date: July 23, 1957
Creator: Trescot, Charles D., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of efficiency characteristics of a single-stage turbine with downstream stators in terms of work and speed requirements

Description: One-dimensional mean-section flow and blade specific losses proportional to average specific kinetic energy are assumed in the analysis. Range of the work-speed parameter lambda considered includes low to moderate blade speeds with high specific work outputs, where critical turbojet, turbopump, and accessory-drive turbines are encountered. A diffusion factor of 0.5 limits the loading on the downstream stators. Turbine efficiences considered are total or aerodynamic, rating, and static. Efficien… more
Date: January 23, 1957
Creator: Wintucky, William T. & Stewart, Warner L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Airplane Measurements of Atmospheric Turbulence for Altitudes Between 20,000 and 55,000 Feet Over the Western Part of the United States

Description: Report presenting a sample of data on atmospheric turbulence on Lockheed U-2 airplanes during research flights. The intensity, amount, and extent of atmospheric turbulence observed in the United States is in good agreement with data from England and Western Europe. Results regarding overall gust distribution, intensity of turbulence, percent of rough air, and size of turbulent areas are provided.
Date: August 23, 1957
Creator: Coleman, Thomas L. & Coe, Emilie C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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