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Field Tests for the United States Atomic Energy Commission on the Use of the Seismic Geophysical Method for Tracing "Buried Channels" in the Monument Valley Area, Arizona

Description: From introduction: This report contains the results of field tests for the U.S. AEC on the use of the seismic geophysical method for tracing "buried channels" in the Monument Valley area, Arizona.
Date: November 15, 1952
Creator: Wantland, Dart & Casey, Robert D.
Partner: UNT Libraries Government Documents Department

An Investigation at Subsonic Speeds of the Rolling Effectiveness of a Small Perforated Spoiler on a Wing Having 45 Degrees of Sweepback

Description: Memorandum presenting an investigation of the rolling effectiveness of a partial-span, perforated spoiler on a wing with 45 degrees of sweepback at Mach numbers from 0.25 to 0.96. The effects of the spoiler on the lift, drag, and pitching moment were also determined. Results regarding Reynolds number, Mach number, and predicted rate of roll are provided.
Date: September 15, 1952
Creator: Bandettini, Angelo
Partner: UNT Libraries Government Documents Department

Comparison of calculated and experimental temperatures of water-cooled turbine blades

Description: Report presenting analytical methods to calculate average and local turbine-blade temperatures. The temperatures were compared with experimental data obtained in a forced-convection, water-cooled aluminum turbine over a range of turbine-inlet-gas temperatures and coolant-mass velocities. Results regarding comparison of calculated and experimental aluminum turbine blade temperatures, comparison of calculated and experimental stationary-blade temperatures, stationary water-cooled blade operating data, and turbine operating data are provided.
Date: July 15, 1952
Creator: Schum, Eugene F.; Freche, John C. & Stelpflug, William J.
Partner: UNT Libraries Government Documents Department

Lift, drag, and pitching moment of low-aspect-ratio wings at subsonic and supersonic speeds: An investigation at large Reynolds numbers of the low-speed characteristics of several wing-body combinations

Description: Report presenting an investigation of several wing-body combinations with wings suitable for supersonic interceptor-type aircraft at high Reynolds numbers and low Mach numbers. Nine wing-body combinations were tested with three different wing aspect ratios and three different plan forms. Results regarding the lift, drag, and pitching moment are provided.
Date: February 15, 1952
Creator: Smith, Donald W.; Shibata, Harry H. & Selan, Ralph
Partner: UNT Libraries Government Documents Department

Flight Characteristics of a 1/4-Scale Model of the XFV-1 Airplane (TED No. NACA DE-378)

Description: From Summary: "A 1/4-scale dynamically similar model of the XFV-1 airplane has been flown in the Ames 40- by 80-foot wind tunnel, using the trailing flight-cable technique. This investigation was devoted to establishing the flight characteristics of the model in forward flight from hovering to wing stall, and in yawed flight (wing span alined with the relative wind) from hovering to the maximum speed at which controlled flight could be maintained. Landings, take-offs, and hovering characteristics in flights close to the ground were also investigated."
Date: October 15, 1952
Creator: Kelly, Mark W. & Smaus, Louis H.
Partner: UNT Libraries Government Documents Department

A unified two-dimensional approach to the calculation of three-dimensional hypersonic flows, with application to bodies of revolution

Description: A procedure for calculating three-dimensional steady and nonsteady supersonic flows with the method of characteristics is developed and discussed. An approximate method is deduced from the characteristics method and shown to be of practical value at high supersonic speeds.
Date: August 15, 1952
Creator: Eggers, A. J., Jr. & Savin, Raymond C.
Partner: UNT Libraries Government Documents Department

Some effects of side-wall modifications on the drag and pressure recovery of an NACA submerged inlet at transonic speeds

Description: Report presenting comparative drag and pressure recovery for an NACA submerged inlet and two side-wall modifications. One afterbody and diffuser were used for all tests and testing was conducted over a range of Mach numbers. The two modified inlets were found to be superior to the standard inlet from the standpoint of pressure recovery.
Date: February 15, 1952
Creator: Taylor, Robert A.
Partner: UNT Libraries Government Documents Department

Hydrocarbon and nonhydrocarbon derivatives of cyclopropane

Description: The methods used to prepare and purify 19 hydrocarbon derivatives of cyclopropane are discussed. Of these hydrocarbons, 13 were synthesized for the first time. In addition to the hydrocarbons, six cyclopropylcarbinols, five alkyl cyclopropyl ketones, three cyclopropyl chlorides, and one cyclopropanedicarboxylate were prepared as synthesis intermediates. The melting points, boiling points, refractive indices, densities, and, in some instances, heats of combustion of both the hydrocarbon and nonhydrocarbon derivatives of cyclopropane were determined. These data and the infrared spectrum of each of the 34 cyclopropane compounds are presented in this report. The infrared absorption bands characteristic of the cyclopropyl ring are discussed, and some observations are made on the contribution of the cyclopropyl ring to the molecular refractions of cyclopropane compounds.
Date: August 15, 1952
Creator: Slabey, Vernon A.; Wise, Paul H. & Gibbons, Louis C.
Partner: UNT Libraries Government Documents Department

Investigation of performance of several double-shroud ejectors and effect of variable-area exhaust nozzle on single ejector performance

Description: Report presenting an investigation to determine the characteristics of a double-shroud cooling-air ejector. The performance of a single-shroud ejector with a clamshell-type variable-area actuating nozzle was compared with that of an ejector having a conical nozzle. Results regarding the mechanics of ejector flow systems, effect of variable-area primary nozzle on ejector performance, double-shroud-ejector performance, and application of data are provided.
Date: July 15, 1952
Creator: Ellis, C. W.; Hollister, D. P. & Wilsted, H. D.
Partner: UNT Libraries Government Documents Department

Investigation of power extraction characteristics and braking requirements of a windmilling turbojet engine

Description: Report presenting an investigation in an altitude chamber to determine the power extraction and braking characteristics of a windmilling single-spool axial-flow turbojet engine of the 5000-pound thrust class over a range of altitudes and Mach numbers. Results regarding extractable horsepower from a windmilling engine, total pressure gradient through a windmilling engine, contribution of a compressor to extracted horsepower, and braking of the windmilling engine are provided.
Date: July 15, 1952
Creator: Walker, Curtis L. & Fenn, David B.
Partner: UNT Libraries Government Documents Department

The longitudinal characteristics at Mach numbers up to 0.92 of a cambered and twisted wing having 40 degrees of sweepback and an aspect ratio of 10

Description: Report presenting an investigation of a sweptback wing in combination with a fuselage of a type considered suitable for long-range, high-speed airplanes in the 12-foot pressure wind tunnel. The investigations included tests of the wing alone, the wing-fuselage combination, and the effects of fences.
Date: September 15, 1952
Creator: Edwards, George G.; Tinling, Bruce E. & Ackerman, Arthur C.
Partner: UNT Libraries Government Documents Department

Correlation of predicted and experimental lateral oscillation characteristics for several airplanes

Description: Report presenting an investigation of the accuracy of a currently used method for predicting the dynamic lateral oscillatory characteristics of airplanes. The study involved the comparison of controls-fixed flight-test data from several current fighter-type jet airplanes with the calculated values of period and damping for the airplanes.
Date: December 15, 1952
Creator: Heinle, Donovan R. & McNeill, Walter E.
Partner: UNT Libraries Government Documents Department

The effect of various aerodynamic balances on the low-speed lateral-control and hinge-moment characteristics of a 0.20-chord partial-span outboard aileron on a wing with leading edge swept back 51.3 degrees

Description: Report presenting a wind-tunnel investigation at low speeds to determine the lateral-control and hinge-moment characteristics of a 20-percent-chord, unsealed, partial-span outboard aileron equipped with an overhang, a paddle, or a spoiler balance on a tapered 51.3 degree sweptback semispan wing model with an aspect ratio of 3.05. The aileron effectiveness was not greatly affected by the overhang or paddle balance, but the spoiler balance increased the effectiveness obtained with the plain flap.
Date: September 15, 1952
Creator: Hammond, Alexander D.
Partner: UNT Libraries Government Documents Department

Aerodynamic characteristics at transonic speeds of a wing having a 45 degree sweep, aspect ratio 8, taper ratio 0.45, and airfoil sections varying from the NACA 63A010 section at the root to the NACA 63A006 section at the tip.

Description: Report presenting an investigation in the 7- by 10-foot tunnel to determine the transonic aerodynamic characteristics of a wing with a spanwise variation in thickness ratio. The wings investigated had 45 degrees of sweepback, aspect ratio 8, taper ratio 0.45, and airfoil sections tapered from an NACA 63A010 section at the root chord to an NACA 63A006 section at the tip chord. Results regarding lift characteristics, drag characteristics, and pitching-moment characteristics are provided.
Date: January 15, 1952
Creator: Morrison, William D., Jr. & Fournier, Paul G.
Partner: UNT Libraries Government Documents Department

Investigational Drilling, Hoskinnini Mesa

Description: From to the files: To date, all the mineralization seen in the Monument Valley area in the Shinarump formation has been in scour channels. The mineralized rock occurs at or near the bottom of the channel. On Hoskinnini Mesa, all the channels examined to date contain some mineralized material. Channels observed may in some cases contain copper without apparent uranium mineralization; others definitely exhibit copper-uranium mineralization.
Date: May 15, 1952
Creator: Chester, John W. & Pitman, R. K.
Partner: UNT Libraries Government Documents Department

Research and Development Progress Report

Description: "The St. Louis Refinery produced its first UO3 and UO2 in 1942, and its first UF4 and U metal in 1943. The accent has always been on production, and the function of the extremely small research and development groups has been to aid the production units in their job. ... Recently, there has been a growing realization of the need for a broader and more detailed knowledge of both the chemical and technological aspects of all phases of work. ... This is the first of a series of quarterly progress reports on the research and development activities at the St. Louis Refinery."--p. 6
Date: October 15, 1952
Partner: UNT Libraries Government Documents Department

THE PRODUCTION OF HIGH-PURITY BERYLLIUM CARBIDE

Description: A process for production of pure Be/sub 2/C by using the re action between beryllium and graphite powders at about 1000 deg C described. The effects of variables such as stoichiometry, reaction temperature, beryllium- powder particle size, and process-apparatus construction materials are discussed. (J.R.D.)
Date: October 15, 1952
Creator: Theodore, J.G.; Beaver, W.W.; Dolance, A. & Stonehouse, A.J.
Partner: UNT Libraries Government Documents Department