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A Remotely Controlled Welding Device for Joining Stainless Steel Tubes

Description: Abstract: The design and testing of experimental equipment for remotely joining stainless steel tubing by heliarc welding is described. This apparatus consists of a modified heliarc welding torch which is hydraulically controlled to maintain constant arc voltage. A suitable arc voltage sensing and control amplifier circuit was developed for this application.
Date: November 15, 1954
Creator: Mueller, Martin & Hecker, Eugene
Partner: UNT Libraries Government Documents Department
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A Transonic Wind-Tunnel Investigation of the Longitudinal Force and Moment Characteristics of a Plane and a Cambered 3-Percent-Thick Delta Wing of Aspect Ratio 3 on a Slender Body

Description: Report presenting an investigation of the effects of leading-edge camber without twist on an aspect-ratio-3 delta wing of thickness ratio 3, a body with an ogive nose, and a cylindrical afterbody. Results regarding the base pressures and body characteristics and wing-body combinations are provided.
Date: November 15, 1954
Creator: Burrows, Dale L. & Palmer, William E.
Partner: UNT Libraries Government Documents Department
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The Effect of an Operating Propeller on the Aerodynamic Characteristics at High Subsonic Speeds of a Model of a Vertical-Rising Airplane Having an Unswept Wing of Aspect Ratio 3

Description: Report presenting an investigation in the pressure wind tunnel to determine the effect of an operating propeller on the aerodynamic characteristics of a model of a vertical-rising airplane with an unswept wing with an aspect ratio of 3. Lift, longitudinal force, pitch, and roll characteristics, with and without power, are presented for the complete model and various combinations of model components.
Date: November 15, 1954
Creator: Sutton, Fred B. & Buell, Donald A.
Partner: UNT Libraries Government Documents Department
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Wind-tunnel investigation at subsonic and supersonic speeds of a fighter model employing a low-aspect-ratio unswept wing and a horizontal tail mounted well above the wing plane - longitudinal stability and control

Description: Report presenting experimental results showing the static longitudinal-stability and -control characteristics of a model of a fighter airplane with a low-aspect-ratio unswept wing and an all-movable horizontal tail. The investigation was made over a Mach number range from 0.60 to 0.90 and from 1.35 to 1.90. Results regarding the pitching moment at zero lift, longitudinal stability, and longitudinal control are provided.
Date: November 15, 1954
Creator: Smith, Willard G.
Partner: UNT Libraries Government Documents Department
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Performance and Boundary-Layer Data From 12 Degree and 23 Degree Conical Diffusers of Area Ratio 2.0 at Mach Numbers Up to Choking and Reynolds Numbers Up to 7.5 X 10(6)

Description: "For each of two inlet-boundary-layer thicknesses, performance and boundary-layer characteristics have been determined for a 12 degree, 10-inch-inlet-diameter diffuser, a 12 degree, 21-inch-inlet-diameter diffuser, and a 23 degree, 21-inch-inlet-diameter diffuser. The investigation covered an inlet Mach number range from about 0.10 to coking. The corresponding inlet Reynolds number, based on inlet diameter, varied from about 0.5 x 10(6) to 7.5 x 10(6)" (p. 1013).
Date: November 15, 1954
Creator: Little, B. H., Jr. & Wilbur, Stafford W.
Partner: UNT Libraries Government Documents Department
open access

Longitudinal Stability Characteristics at Transonic Speeds of a Canard Configuration Having a 45 Degree Sweptback Wing of Aspect Ratio 6.0 and NACA 65A009 Airfoil Section

Description: Report presenting an investigation to determine the longitudinal stability, lift, and drag characteristics of a rocket-powered model of a canard configuration with a 45 degree sweptback wing of aspect ratio 6.0, taper ratio of 0.6, and NACA 65A009 airfoil section. The variations with Mach number of lift, drag, and longitudinal stability were compared with a tailless and a conventional model with the same wing.
Date: November 15, 1954
Creator: Vitale, A. James & McFall, John C., Jr.
Partner: UNT Libraries Government Documents Department
open access

Numerical Calculation of Blast Waves in Non-Uniform Atmosphere

Description: The problem of a blast wave propagating through an inhomogeneous atmosphere is set up for computation by the CRC LORA. Previous treatments of this problem have used various simplifying assumptions such as that of purely radial flow. Since, however, pressure gradients in this situation will not in general be in the direction of rays from the blast center, non-radial flow will exist, and there is reason to believe that for large distances this effect will play a prominent role. Therefore, a progr… more
Date: November 15, 1954
Creator: Fife, Paul C.
Partner: UNT Libraries Government Documents Department
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