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Radioactive debris from operations Tumbler and Snapper: observations beyond 200 miles from the test site. Part II

Description: The results of the fall-out monitoring program at fixed stations more than 200 miles from the test site following the series of atomic tests in Nevada during the spring of 1952 are shown in a series of maps. Trajectories of debris from the individual bursts are given, together with a discussion of meteorological phenomena associated with the transport of atomic debris.
Date: February 25, 1953
Creator: List, R.J.
Partner: UNT Libraries Government Documents Department
open access

Production Test No. 105-522-E, Examination of pile process tubes

Description: The objective of the production test described in this report is to provide the authority and mechanism to remove process tubes from the piles for inspection. The test is intended to provide a more positive tube inspection program than was previously provided under production test number 105-9-P, ``Corrosion of Slugs and Tubes``, document number 7-3928.
Date: May 25, 1953
Creator: Falkoski, R. E.
Partner: UNT Libraries Government Documents Department
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Radiological Sciences Department investigation radiation incident, Class I, No. 299

Description: Fragments of radioactive materials were deposited in the Redox area during August, 1953. By radiation monitoring, the location, physical properties, and dosage were determined. The cause was assumed to be the buildup of ammonium nitrate containing ruthenium on the filters of the Redox stack. The amount of occupational exposure, and the reasons why this incident happened were also discussed.
Date: August 25, 1953
Creator: Ebright, D. P.
Partner: UNT Libraries Government Documents Department
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Factors Affecting the Concentration of TBP Plant Wastes

Description: Introduction: "The problem of determining the properties and necessary controls on the TBP Plant waste disposal to eliminate transport line plugging and to permit higher concentration prior to return of this to the tank farms was studied. A report of preliminary findings was made to L. W. Finsh on January 31, 1953. This report compiles information in the aforementioned report and findings since its issuance. Previous studies related to this problem are summarized in the U. R. Technical Manual, … more
Date: March 25, 1953
Creator: Shepard, D. F.
Partner: UNT Libraries Government Documents Department
open access

Investigation of a Sodium Vapor Compressor Jet for Nuclear Propulsion of Aircraft

Description: Analysis indicates that, in order to achieve supersonic flight with nuclear powered aircraft, a reactor -power plant combination capable of operating at temperatures considerably in excess of current practice must be developed. It is pointed out that there exist two general avenues of approach toward the goal of attaining high temperature reactors and power plants. The first approach involves the continuation and augmentation of research along the lines pursued by the conventional turbo-jet en… more
Date: June 25, 1953
Creator: Schwartz, H.
Partner: UNT Libraries Government Documents Department
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De-Icing and Runback Characteristics of Three Cyclic Electric, External De-Icing Boots Employing Chordwise Shedding

Description: Memorandum presenting an icing investigation conducted to determine the general de-icing and runback characteristics of three production samples of electric rubber-clad cyclic de-icing boots. The overall de-icing characteristics of two of the boots investigated were quite similar. Results regarding boot surface temperatures and general de-icing and runback characteristics are provided.
Date: May 25, 1953
Creator: Ruggeri, Robert S.
Partner: UNT Libraries Government Documents Department
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Effects of slot location and geometry on the flow in a square tunnel at transonic Mach numbers

Description: Report presenting data from an investigation of the effects of slot location and slot geometry on the flow in a square tunnel for a Mach number range up to 1.4. Calculated static-pressure and angle-of-flow distributions along the slotted boundary are presented for several slot configurations in a tunnel with two opposite walls slotted.
Date: November 25, 1953
Creator: Nelson, William J. & Cubbage, James M., Jr.
Partner: UNT Libraries Government Documents Department
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Comparison of the experimental and theoretical distribution of lift on a slender inclined body of revolution at M = 2

Description: From Summary: "Pressure distributions and force characteristics have been determined for a body of revolution consisting of a fineness ratio 5.75, circular-arc, ogival nose tangent to a cylindrical afterbody for an angle-of-attack range of 0 degrees to 35.5 degrees. The free-stream Mach number was 1.98 and the free-stream Reynolds number was approximately 0.5 x 10 sup 6, based on body diameter. Comparison of the theoretical and experimental pressure distributions shows that for zero lift, eithe… more
Date: August 25, 1953
Creator: Perkins, Edward W. & Kuehn, Donald M.
Partner: UNT Libraries Government Documents Department
open access

Some observations on stall flutter and buffeting

Description: "An attempt is made to describe the phenomenological differences between stall flutter and buffeting. Some experimental results are presented concerning both the boundaries at which these phenomena occur and the stresses involved" (p. 1).
Date: June 25, 1953
Creator: Rainey, A. Gerald
Partner: UNT Libraries Government Documents Department
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Effect of Variations in Reynolds Number on the Aerodynamic Characteristics of Three Bomb or Store Shapes at a Mach Number of 1.62 With and Without Fins

Description: Memorandum presenting tests in the 9-inch supersonic tunnel of three bomb or store shapes without fins and with two sets of cruciform fins. Measurements of normal force, chord force, and pitching moment were made; analyses of the effects of angle of attack and Reynolds number on these qualities and also upon center-of-pressure position and fin effectiveness are presented.
Date: June 25, 1953
Creator: Rainey, Robert W.
Partner: UNT Libraries Government Documents Department
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Wind-tunnel investigation of the vortex wake and downwash field behind triangular wings and wing-body combinations at supersonic speeds

Description: Report presenting an investigation of the flow field behind triangular wings alone and in combination with a pointed cylindrical body at Mach numbers of 1.5 and 2.0 through an angle-of-attack range of 0 to 24 degrees. Results regarding the geometric characteristics of the vortex system and downwash characteristics are provided.
Date: June 25, 1953
Creator: Spahr, J. Richard & Dickey, Robert R.
Partner: UNT Libraries Government Documents Department
open access

Weight Bar Charts

Description: The weight breakdowns in bar chart form in the present report have been prepared to give an indication of 'how we spend our weight.' They are expected to focus attention on the design functions that warrant weight reduction activity on future models.
Date: June 25, 1953
Creator: Saelman, B. J. & Vick, H. W.
Partner: UNT Libraries Government Documents Department
open access

Preliminary Investigation of a Variable-Area Auxiliary Air-Intake System at Mach Numbers From 0 to 1.3

Description: "A variable-area auxiliary air scoop in combination with a fixed-area nose intake was tested at Mach numbers from 0 to 1.3. The purpose of the investigation was to evaluate the effectiveness of such an auxiliary intake in improving the net thrust of an intake-engine combination over a range of speeds. The results indicated that the internal flow was always stable and that improvements in net thrust would be realized at Mach numbers up to about 1.1 for an intake design Mach number of 1.3" (p. 1). more
Date: February 25, 1953
Creator: Scherrer, Richard; Stroud, John F. & Swift, John T.
Partner: UNT Libraries Government Documents Department
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Tests in the Ames 40- by 80-foot wind tunnel of an airplane configuration with a variable-incidence triangular wing and an all-movable horizontal tail

Description: Report presenting an investigation to determine the low-speed, large-scale characteristics of an airplane configuration with an aspect ratio 2 triangular wing of variable incidence. The model consisted of the variable-incidence wing in combination with a fuselage of fineness ratio 13, a triangular vertical tail, and a thin, unswept, all-movable horizontal tail. Results regarding the lift characteristics of the model with the tail off, longitudinal stability with the horizontal tail on, trim lif… more
Date: June 25, 1953
Creator: Koenig, David G.
Partner: UNT Libraries Government Documents Department
open access

Flight Measurement of Aerodynamic Loads and Moments on an External Store Mounted Under the Wing of a Swept-Wing Fighter-Type Airplane

Description: Report discussing an investigation of external-store characteristics using a 245-gallon external fuel tank mounted under a wing of a North American F-86A airplane. The store normal force was found to increase abruptly on penetration of the buffet boundary. Information about the normal- and side-load distribution and integrated force and moment coefficients is provided.
Date: November 25, 1953
Creator: O'Bryan, Thomas C.
Partner: UNT Libraries Government Documents Department
open access

Investigation of Spoilers at a Mach Number of 1.93 to Determine the Effects of Height and Chordwise Location on the Section Aerodynamic Characteristics of a Two-Dimensional Wing

Description: Report presenting an investigation of spoilers at a Mach number of 1.93 to determine the effects of height and chordwise location on the section pressure distributions and section aerodynamic characteristics of a two-dimensional, 6-percent-thick, symmetrical wing. Spoilers of 3-, 5-, and 7-percent-chord height were tested at three chordwise locations. Results regarding pressure distributions, aerodynamic characteristics, and shock boundary-layer interactions are provided.
Date: March 25, 1953
Creator: Mueller, James N.
Partner: UNT Libraries Government Documents Department
open access

Free-Jet Altitude Investigation of a 20-Inch Ram-Jet Combustor With a Rich Inner Zone of Combustion for Improved Low-Temperature-Ratio Operation

Description: From Summary: "An investigation of the altitude performance of a 20-inch-diameter high-temperature-ratio ram-jet combustor which had been redesigned to provide good combustor efficiency over a wide range of temperature ratios was conducted at zero angle of attack in a free-jet facility at a Mach number of 3.0. Configurations investigated incorporated a cylindrical control sleeve which confined the injected fuel at low over-all fuel-air ratios to about 40 percent of the engine air flow. This pro… more
Date: May 25, 1953
Creator: Trout, Arthur M. & Wentworth, Carl B.
Partner: UNT Libraries Government Documents Department
open access

Effect of rotor- and stator-blade modifications on surge performance of an 11-stage axial-flow compressor 2: redesigned compressor for XJ-40-WE-6 engine

Description: Report presenting an investigation to increase the compressor surge-limit pressure ratio of the XJ40-WE-6 turbojet engine at high equivalent speeds. An evaluation of the basic redesign of the compressor and 11 additional modifications are examined.
Date: May 25, 1953
Creator: Conrad, E. William; Finger, Harold B. & Essig, Robert H.
Partner: UNT Libraries Government Documents Department
open access

Applications of auxiliary air injectors to supersonic wind tunnels

Description: Report presenting a discussion of the adverse effects of high compression ratio requirements for supersonic wind tunnels as well as the use of second throats for alleviating those effects. The results indicated that an auxiliary air-injector system can reduce starting and running compression ratios as compared to a conventional wind tunnel with a divergent diffuser.
Date: November 25, 1953
Creator: Spiegel, Joseph M.; Hofstetter, Robert U. & Kuehn, Donald M.
Partner: UNT Libraries Government Documents Department
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