UNT Libraries Government Documents Department - 228 Matching Results

Search Results

Results: 1 - 24 next
open access

Additional Static and Fatigue Tests of High-Strength Aluminum-Alloy Bolted Joints

Description: From Introduction: "Early in 1951 the National Advisory Committee for Aeronautics published, as Technical Note 2276 (ref. 1), a report by the Aluminum Research Laboratories of the Aluminum Company of America on the results of static and fatigue tests of high-strength aluminum alloy monobloc specimens and bolted joints. In view of special interest shown by several aircraft companies, certain expansions of the test program were undertaken by the Aluminum Research Laboratories and are reported her… more
Date: July 1954
Creator: Hartmann, E. C.; Holt, Marshall & Eaton, I. D.
Item Type: Refine your search to only Report
open access

Aerodynamic characteristics of the NACA 64-010 and 0010-1.10 40/1.051 airfoil sections at Mach numbers from 0.30 to 0.85 and Reynolds numbers from 4.0 x 10(exp. 6) to 8.0 x 10(exp. 6)

Description: Report presenting an investigation in the low-turbulence pressure tunnel to determine the aerodynamic characteristics of NACA 64-010 and 0010-1.10 airfoil sections. The investigation covered a range of Mach and Reynolds numbers.
Date: August 1954
Creator: Loftin, Laurence K., Jr.
Item Type: Refine your search to only Report
open access

Aerodynamic investigation of a four-blade propeller operating through an angle-of-attack range from 0 to 180 degrees

Description: Report presenting an investigation of the aerodynamic characteristics of a four-blade rigid model propeller in the full-scale tunnel for a range of angles of attack, blade angles, and advance ratio. It included a preliminary explanation of vertical descent and a comparison with theory. Results regarding the static thrust and forward flight are provided.
Date: June 1954
Creator: McLemore, H. Clyde & Cannon, Michael D.
Item Type: Refine your search to only Report
open access

Aerodynamics of slender wings and wing-body combinations having swept trailing edges

Description: From Introduction: "In the present paper, a general method is developed for solving low-aspect-ratio problems involving shed vortex sheets. Both direct and inverse problems are considered. The method is applicable for all planar problems where the velocity boundary conditions can be made homogeneous by differentiation in either the streamwise or the spanwise directions."
Date: March 1954
Creator: Mirels, Harold
Item Type: Refine your search to only Report
open access

The Ames 10- by 14-Inch Supersonic Wind Tunnel

Description: "The purpose of the present report is to describe the 10- by 14-inch supersonic wind tunnel and its operational characteristics over the nominal Mach number range from 2.7 to 6.3. Rather complete calibration data on characteristics of flow in the test section are presented and briefly discussed" (p. 2).
Date: January 1954
Creator: Eggers, A. J., Jr. & Nothwang, George J.
Item Type: Refine your search to only Report
open access

An analysis of shock-wave cancellation and reflection for porous walls which obey an exponential mass-flow pressure-difference relation

Description: From Introduction: "In the present report a generalized exponential relation between pressure difference and normal flow is assumed which adequately describes porous-wall calibrations obtained experimentally at the Ames Laboratory and those presented in references 1 and 3."
Date: August 1954
Creator: Spiegel, Joseph M. & Tunnell, Phillips J.
Item Type: Refine your search to only Report
open access

Analysis of Sweptback Wings on Cal-Tech Analog Computer

Description: Note presenting structural analyses made of two 45 degree swept wings of aspect ratio 3. One has a constant depth and the other had a constant biconvex cross section in planes parallel to the air stream. Deflections, all internal forces, and vibration modes have been calculated for concentrated static loads.
Date: January 1954
Creator: MacNeal, Richard H. & Benscoter, Stanley U.
Item Type: Refine your search to only Report
open access

An analysis of the stability and ultimate bending strength of multiweb beams with formed-channel webs

Description: From Introduction: "The purpose of the present paper is to develop a simple method of calculating both the stress at which initial wrinkling occurs in muti-web beams and the ultimate bending strength of beams which are susceptible to this mode of instability."
Date: August 1954
Creator: Semonian, Joseph W. & Anderson, Roger A.
Item Type: Refine your search to only Report
open access

An analytical and experimental study of the transient response of a pressure-regulating relief valve in a hydraulic circuit

Description: From Introduction: "This report presents an analysis of the response of the relief valve to sudden flow-demand changes. The analysis can be applied to the design of relief valves to satisfy given response specifications and to predict the stability of the valve in a specific hydraulic circuit. For this reason, derivatives of all the constants employed are included in the report."
Date: March 1954
Creator: Gold, Harold & Otto, Edward W.
Item Type: Refine your search to only Report
open access

Analytical determination of the mechanism of an airplane spin recovery with different applied yawing moments by use of rotary-balance data

Description: From Introduction: "These aerodynamic data were used previously in an analytical investigation of a spin recovery by rudder reversal, the results of which have been published in reference 2. Because of certain discrepancies in the rotary-balance data similar to those discussed in reference 3, some modifications were made to the aerodynamic data used in calculating the results in reference 2 and also the results in this paper; these discrepancies and modifications are discussed in detail herein." more
Date: December 1954
Creator: Burk, Sanger M., Jr.
Item Type: Refine your search to only Report
open access

An Analytical Estimation of the Effect of Transpiration Cooling on the Heat-Transfer and Skin-Friction Characteristics of a Compressible, Turbulent Boundary Layer

Description: "An analysis based on mixing-length theory is presented which indicates that surface blowing associated with transpiration cooling systems produce large reductions in both the heat-transfer and skin-friction coefficients for a turbulent boundary layer on a flat plate. The numerical results are restricted to the case of air blowing into air. The effects of blowing are indicated to be similar for high-speed, compressible flow to those for low-speed, incompressible flow" (p. 1).
Date: December 1954
Creator: Rubesin, Morris W.
Item Type: Refine your search to only Report
open access

An analytical investigation of airplane spin-recovery motion by use of rotary-balance aerodynamic data

Description: From Introduction: "Many investigations have been made in the Langley 20-foot free-spinning tunnel in which the natures of airplane spins and recoveries have been determined experimentally with dynamically scaled-down models. The results of some of these investigations are presented in references 1 to 5."
Date: June 1954
Creator: Scher, Stanley H.
Item Type: Refine your search to only Report
open access

Application of Two-Dimensional Vortex Theory to the Prediction of Flow Fields Behind Wings of Wing Body Combinations at Subsonic and Supersonic Speeds

Description: Note presenting a theoretical investigation of a general method for predicting the flow field behind the wings of plane and cruciform wing and body combinations at transonic or supersonic speeds and slender configurations at supersonic speeds. The effects of certain geometric parameters as aspect ratio,angle of attack and incidence, ratio of body radius to wing semispan, and angle of bank on the vortex wake behidn wings of wing-body combinations were studied.
Date: September 1954
Creator: Rogers, Arthur William
Item Type: Refine your search to only Report
open access

Approximate effect of leading-edge thickness, incidence angle, and inlet mach number on inlet losses for high-solidity cascades of low cambered blades

Description: Report presenting an approximate, theoretical analysis of the inlet or induction losses due to subsonic flow into a high-solidity cascade of finite thickness blades at incidence angle. Results indicated that the losses can become considerable for large deviations from the design incidence such as compressor off-design operating conditions. Results regarding the computational results, significance of assumptions and limitations, comparison of theoretical approximation with actual compressor resu… more
Date: December 1954
Creator: Wright, Linwood C.
Item Type: Refine your search to only Report
open access

Bending Tests on Box Beams Having Solid- and Open-Construction Webs

Description: "The results of an exploratory experimental investigation of the effects of replacing alternate webs in a multiweb beam by open, post-stringer construction are reported. Post-stringer (either upright or inclined posts) construction is shown to perform the function of comparable-weight, solid, fabricated webs in the stabilization of the compression cover of a beam in bending both before and after buckling" (p. 1).
Date: August 1954
Creator: Johnson, Aldie E., Jr.
Item Type: Refine your search to only Report
open access

Buckling of Long Square Tubes in Combined Compression and Torsion and Comparison with Flat-Plate Buckling Theories

Description: Note presenting the results of buckling tests of long square tubes loaded in compression, torsion, and combined compression and torsion and a comparison with theoretical compression and shear buckling curves and with theoretical interaction curves for the buckling of simply supported flat plates. Results regarding the pure compression and pure torsion buckling and combined compression and torsion buckling are provided.
Date: May 1954
Creator: Peters, Roger W.
Item Type: Refine your search to only Report
open access

Burning Times of Magnesium Ribbons in Various Atmospheres

Description: Report presenting some details of the physical mechanism of the combustion of magnesium ribbon and burning times for magnesium ribbons with various mixtures of oxygen in argon, nitrogen, helium, and argon-water vapor. Results regarding the types of gaseous reactions that occurred are also provided.
Date: December 1954
Creator: Coffin, Kenneth P.
Item Type: Refine your search to only Report
open access

Calculated subsonic span loads and resulting stability derivatives of unswept and 45 degrees sweptback tail surfaces in sideslip and in steady roll

Description: Report presenting a calculation of subsonic span loads and the resulting stability derivatives for a systematic series of vertical- and horizontal-tail combinations in sideslip and in steady roll in order to provide information embracing a wide range of probable tail configurations. The results of this investigation, which had a wide range of geometric variables than previous studies, showed trends which were in general agreement with the results of previous investigations.
Date: October 1954
Creator: Queijo, M. J. & Riley, Donald R.
Item Type: Refine your search to only Report
Back to Top of Screen