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Calorimetric Calibration of a Graphite Walled, Cavity-Type Ionization Chamber

Description: Technical report outlining cavity-type ionization chambers with graphite walls that are used to measure heat dissipation in the graphite reflector of the MTR mock-up. Studies the relationship between the ionization occurring in the chamber and the heat generated in the surrounding graphite medium. [From Abstract]
Date: January 23, 1951
Creator: Jenks, G. H.; Breazeale, W. M. & Hairston, J. J.
Partner: UNT Libraries Government Documents Department
open access

Studies on the Removal of Radioisotopes From Liquid Wastes by Coagulation

Description: Technical report covering work completed on the removal of radioisotopes from water using a calcium phosphate floc as a carrier. This research was performed as part of the Health Physics Waste Disposal Research Section work on the removal of small quantities of radioactivity from large volumes of water. [From Abstract]
Date: January 23, 1951
Creator: Lauderdale, Robert A., Jr.
Partner: UNT Libraries Government Documents Department
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Survey of Processing Methods for the Production of Thorium Metal from Monazite Sand and Thorium Nitrate

Description: Cost estimates for two types of Th producing plants are offered. One utilizes Th(NO3)4 as raw material, the other uses monazite sand. Final processing schemes and plant designs are not fixed, so the estimates represent maximum costs. Recommendations for research and development of Th producing methods are given.
Date: April 23, 1951
Creator: Bulkowski, H. Harold & Maerker, John B.
Partner: UNT Libraries Government Documents Department
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Apparatus for obtaining a supersonic flow of very short duration and some drag measurements obtained with its use

Description: From Introduction: "The auxiliary apparatus described in this paper was constructed to meet this need and has been developed to a point where satisfactory measurements of relative drag can be obtained. In this paper, the apparatus is described and some comparisons are made between the results obtained with this apparatus and the measurements of free-fall, rocket, and supersonic-tunnel techniques."
Date: July 23, 1951
Creator: Yeates, John E., Jr.; Bailey, F. J., Jr. & Voglewede, T. J.
Partner: UNT Libraries Government Documents Department
open access

Effects of double-slotted flaps and leading-edge modifications on the low-speed characteristics of a large-scale 45 degrees swept-back wing with and without camber and twist

Description: Report presenting an investigation of two large-scale, semispan, wing-fuselage models with the 0.25-chord line swept back 45 degrees to determine and compare the effects of partial-span, double-slotted flaps on the characteristics of a 45 degree sweptback wing with and without camber and twist. A secondary investigation was also conducted to determine the effects of various full-span, leading-edge modifications on the characteristics of the models with and without the flaps.
Date: July 23, 1951
Creator: James, Harry A. & Dew, Joseph K.
Partner: UNT Libraries Government Documents Department
open access

Large-scale flight measurements of zero-lift drag at Mach numbers from 0.8 to 1.6 of a wing-body combination having an unswept 4.5 percent thick wing with modified hexagonal sections

Description: Report presenting an investigation of zero-lift drag of a fin-stabilized wing-body combination from high-subsonic to supersonic speeds in a range of Reynolds numbers. The wing was unswept about the 74.5-percent-chord line, an aspect ratio of 3.04, a taper ratio of 0.394, and 4.5-percent-thick modified hexagonal airfoil sections. Results regarding total drag, wing-plus-interference drag, and base pressure are provided.
Date: March 23, 1951
Creator: Schult, Eugene D.
Partner: UNT Libraries Government Documents Department
open access

Tests in the Ames 40- by 80-foot wind tunnel of an airplane configuration with an aspect ratio 2 triangular wing and an all-movable horizontal tail: longitudinal characteristics

Description: Report presenting an investigation to determine the effect of an all-movable horizontal tail on the low-speed longitudinal characteristics of a triangular-wing airplane. The model consisted of a triangular wing of aspect ratio 2, a fuselage of fineness ratio 12.5, a thin, triangular, vertical tail, and a thin, unswept, all-movable horizontal tail.
Date: April 23, 1951
Creator: Graham, David & Koenig, David G.
Partner: UNT Libraries Government Documents Department
open access

The properties of three cast polyester resins of Sierracin 212, 212A, and 250A

Description: From Summary: "Physical properties of samples of three cast polyester resins known as Sierracin resins were investigated. Tests were made to determine specific gravity, index of refraction, Rockwell hardness, Tukon indentation hardness, effect of exposure to accelerated and outdoor weathering, Munsell color, resistance to accelerated service tests, crazing resistance under stress, flexural strength, Izod impact strength, and Taber abrasion resistance. Tables of the values obtained for these phy… more
Date: April 23, 1951
Creator: Kline, G. M.
Partner: UNT Libraries Government Documents Department
open access

The effects of Mach number and Reynolds number on the aerodynamic characteristics of several 12-percent-thick wings having 35 degrees of sweepback and various amounts of camber

Description: Report presenting a comparison of the lift, drag, and pitching-moment characteristics of several wings with 35 degrees of sweepback and various amounts of camber in wind-tunnel testing. Six semispan model wings were tested, three with an aspect ratio of 10 and three with an aspect ratio of 5. Results regarding model distortion under aerodynamic loads, effects of Reynolds number, effects of Mach number, and effects of camber are provided.
Date: February 23, 1951
Creator: Tinling, Bruce E. & Kolk, W. Richard
Partner: UNT Libraries Government Documents Department
open access

Drag interference between a pointed cylindrical body and triangular wings of various aspect ratios at Mach numbers of 1.50 and 2.02

Description: The drag of a body alone, six triangular wings of various aspect ratios, and the combinations were measured at Mach numbers of 1.50 and 2.02 at a Reynolds number of 5.5 million (based on the body length). The experimental drag-interference results were in accordance with calculations based on NACA RM A9E19, 1949, with skin-friction effects taken into account, the interference effect being principally the result of fixing transition on the body by adding a wing.
Date: May 23, 1951
Creator: Katzen, Elliott D. & Kaattari, George E.
Partner: UNT Libraries Government Documents Department
open access

Altitude-ignition limit of a turbojet engine using a condenser-discharge ignition system

Description: The altitude-ignition limits of a condenser-discharge ignition system installed on a turbojet engine were determined at a flight Mach number of 0.6 using 1.1-pound Reid vapor pressure fuel. Ignition was possible up to an altitude of 55,000 feet with 4.8 joules per spark and 6 sparks per second.
Date: October 23, 1951
Creator: Armstrong, John C.
Partner: UNT Libraries Government Documents Department
open access

Two-dimensional cascade investigation of the maximum exit tangential velocity component and other flow conditions at the exit of several turbine blade designs at supercritical pressure ratios

Description: The nature of the flow at the exit of a row of turbine blades for the range of conditions represented by four different blade configurations was evaluated by the conservation-of-momentum principle using static-pressure surveys and by analysis of Schlieren photographs of the flow. It was found that for blades of the type investigated, the maximum exit tangential-velocity component is a function of the blade geometry only and can be accurately predicted by the method of characteristics. A maximum… more
Date: August 23, 1951
Creator: Hauser, Cavour H. & Plohr, Henry W.
Partner: UNT Libraries Government Documents Department
open access

Dynamic stability and control characteristics of a vertically rising airplane model in hovering flight

Description: Report presenting an investigation to determine the stability and control characteristics of a vertically rising airplane model. Results of preliminary hovering flight tests are made in still air, away from the interference effects of the ground and side walls, and with normal airplane-type controls operating in the slipstream.
Date: February 23, 1951
Creator: Bates, William R.; Lovell, Powell M., Jr. & Smith, Charles C., Jr.
Partner: UNT Libraries Government Documents Department
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Comparison of Zero-Lift Drags Determined by Flight Tests at Transonic Speeds of Symmetrically Mounted Nacelles in Various Spanwise Positions on a 45 Degrees Sweptback Wing and Body Combination

Description: Report presenting testing of rocket-powered models flown at transonic speeds to determine the effect of nacelle location on zero-lift drag. Low drag was obtained between M = 0.80 and M = 0.91 for all the nacelle positions investigated. Nacelles located at the wing tips gave the lowest drag, which was less than the drag of the combination without the nacelles over most of the speed range.
Date: May 23, 1951
Creator: Pepper, William B., Jr. & Hoffman, Sherwood
Partner: UNT Libraries Government Documents Department
open access

Review of some recent data on buffet boundaries

Description: Report presenting a study of a large amount of data pertaining to high-speed buffet boundaries of various airplane configurations. The data indicate a strong influence of wing configuration on buffet boundaries. Results regarding low-lift buffeting, high-lift buffeting, buffet boundaries, and buffet intensity are provided.
Date: May 23, 1951
Creator: Purser, Paul E. & Wyss, John A.
Partner: UNT Libraries Government Documents Department
open access

Temperature Distribution in Thin Walled Heat-Exchangers Having Noncircular Flow Passages

Description: In heat exchangers, in which the walls are heated by intemal heat sources, it is possible for wall temperatures greater than the mean to occur in the corners of noncircular flow Passages. Thus in a square or triangular passage low velocities occur in the corners, and the resulting decrease in the heat transfer coefficient produces higher temperatures in the walls at these locations. A generalized analysis is presented taking into account the variation in the heat transfer coefficient along the … more
Date: October 23, 1951
Creator: Farmer, W. S.
Partner: UNT Libraries Government Documents Department
open access

A review of water treatment technology as applied in the 100 Areas, Hanford Works

Description: Higher operating levels in the 100 Area piles have caused alarming increases in pile effluent activity and pressure drop through the process tubes. Projected additional increases in power level may not be possible unless the problems of film formation and pile effluent activity are overcome. Although a solution to these problems is not the responsibility of the Power Division, we do not have an interest in seeing that any proposed solution meets the test of operational practicability. Consequen… more
Date: January 23, 1951
Creator: Conley, W. R.
Partner: UNT Libraries Government Documents Department
open access

Gamma-Ray Transmission Through Finite Slabs - Part 1

Description: This report is part one of a series of two parts to a memorandum. The work discussed here presents the results of extensive calculations on the attention of gamma rays by shields of lead and iron.
Date: July 23, 1951
Creator: Peebles, Glenn Harold
Partner: UNT Libraries Government Documents Department
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