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Theoretical Investigation of the Performance of Proportional Navigation Guidance Systems: Effect of Missile Configuration on the Speed of Response
Description:
Memorandum presenting a comparison of the maximum speed of response that can be attained by three missile configurations, a variable-incidence-wing, a canard, and a tail-control, in combination with a particular proportional navigation guidance system. The configuration that allows the most rapid overall guidance-system response depends on the control-system characteristics. Results regarding the rate-only feedback and rate and normal acceleration feedback are provided.
Date:
January 19, 1953
Creator:
Abramovitz, Marvin
Investigation of the Use of a Stick Force Proportional to Pitching Acceleration for Normal-Acceleration Warning
Description:
Report presenting an investigation of the feasibility of modifying the transient portion of the stick force in abrupt maneuvers in order to eliminate inadvertent normal-acceleration overshoots. The modification consists of additional stick force proportional to a quantity which leads the normal acceleration. The characteristics introduced by the inclusion of the force were considered to be very desirable by pilots.
Date:
August 14, 1953
Creator:
Abramovitz, Marvin; Schmidt, Stanley F. & Van Dyke, Rudolph D., Jr.
Preliminary Studies of the Adsorption of Uranium in a Resin-In-Pulp System
Description:
Data were obtained in non-flowing and flowing (continuous) batch adsorption systems to serve as a guide to the operating conditions that should be used in a resin-in-pulp adsorption system for the recovery of uranium from ores.
Date:
July 27, 1953
Creator:
Abrams, Charles S. & Kaufman, David
Preliminary Leaching Tests for the Extraction of Uranium From Various Monticello Stockpile Ores
Description:
In a section of the area occupied by the Atomic Energy Commission in Grand Junction, Colorado, a pilot plant is being erected to test a resin-in-pulp process. The process is based on the adsorption of uranium by resin from acid pulps. The first ores to be treated at this plant will be Monticello Stockpile Material. Samples of the various stockpiles sere subjected to a series of leaching, filtering and settling tests, the results of which are presented in this report.
Date:
March 2, 1953
Creator:
Abrams, Charles S.; Moulton, Harry D. & Viklund, Hans I.
Uranium Occurrences in the Golden Gate Canyon and Ralston Creek Areas, Jefferson County, Colorado
Description:
From abstract: Pitchblende, associated with base-metal sulfides, has been found at eight localities in the northern part of Jefferson County, Colo., in shear zones that cut pre-Cambrian metamorphic and igneous rocks, chiefly hornblende gneiss, biotite schist, and granite pegmatite. The pitchblende deposits, with one exception, are in major shear zones that contain vein-like bodies of carbonate-rich breccia. The breccia bodies range from 1 to 5 feet in thickness and are related probably to the L…
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Date:
January 1953
Creator:
Adams, John W.; Gude, Arthur J., III & Beroni, E. P.
Energy Spectrum of Deuterons Stripped From He3 and the Resultant Neutron Yield
Description:
The attenuation curve of the deuterons stripped from He3 has been measured with a Faraday cup. The corresponding curve at 190 Mev was fit by assuming that the deuterons were monoenergetic, with three processes taking place.
Date:
March 10, 1953
Creator:
Adelman, F. L.
On Neutron Evaporation From Excited Nuclei
Description:
At high excitation energies, competition of proton and c-particle emission with neutron emission becomes important. For low excitation, the competition between Y-emission, neutron emission, and fission should be taken into account. To aid in the evaluation of this competition an experiment has been performed to measure the number and energy spectrum of the protons and c-particles emitted in the high energy bombardment of uranium with protons, deuterons, and c-particles.
Date:
June 18, 1953
Creator:
Adelman, Frank L.
A Study of Efficiencies and Pressure Drop Characteristics of Air-Filtering Media
Description:
Removal of particles from air is discussed in terms of three classes of filtering media--air-sampling, respirator, and air-cleaning. Plots of efficiency versus filtering velocity are presented. The pressure drop characteristics of the filters are discussed in terms of initial pressure drops of the clean filters, variations in pressure drop of the individual filters, and comparison of loading rates.
Date:
August 10, 1953
Creator:
Adley, F. E.; Scott, R. H. & Gill, W. E.
Small-scale transonic investigation of a 45 degree sweptback wing of aspect ratio 4 with combinations of nose-flap deflections and wing twist
Description:
Report presenting a small-scale transonic investigation of a semispan wing sweptback 45 degrees and of aspect ratio 4 with combinations of nose-flap deflections and wing twist in the high-speed 7- by 10-foot tunnel over a range of Mach numbers. Lift, drag, and pitching-moment data were obtained for several different configurations.
Date:
January 9, 1953
Creator:
Alford, William J., Jr. & Spreemann, Kenneth P.
Experimental investigation of the effects of plan-form taper on the aerodynamic characteristics of symmetrical unswept wings of varying aspect ratio
Description:
Report presenting an investigation to determine the effects of plan-form taper on the aerodynamic characteristics of a series of symmetrical, unswept wings with thicknesses of 8-percent chord. The wings were tested with four different bodies of revolution over a range of Mach numbers. Results regarding the lift, drag, pitching-moment, lift-curve slope, lift-drag ratio, and pitching-moment curve are provided.
Date:
May 29, 1953
Creator:
Allen, Edwin C.
The asymmetric adjustable supersonic nozzle for wind-tunnel application
Description:
Report presenting the development of an asymmetric type of adjustable supersonic nozzle suitable for application to wind tunnels. This type of nozzle permits continuous adjustment of the test-section Mach number without the requirement of flexible walls.
Date:
March 1953
Creator:
Allen, H. Julian
A study of the motion and aerodynamic heating of ballistic missiles entering the earth's atmosphere at high supersonic speeds
Description:
From Summary: "A simplified analysis of the velocity and deceleration history of ballistic missiles entering the earth's atmosphere at high supersonic speeds is presented. The results of this motion analysis are employed to indicate means available to the designer for minimizing aerodynamic heating. The heating problem considered involves not only the total heat transferred to a missile by convection, but also the maximum average and local time rates of convective heat transfer."
Date:
April 28, 1953
Creator:
Allen, H. Julian & Eggers, A. J., Jr.
A Study of the Motion and Aerodynamic Heating of Missiles Entering the Earth's Atmosphere at High Supersonic Speeds
Description:
From Summary: "A simplified analysis is made of the velocity and deceleration history of missiles entering the earth's atmosphere at high supersonic speeds. It is found that, in general, the gravity force is negligible compared to the aerodynamic drag force and, hence, that the trajectory is essentially a straight line. A constant drag coefficient and an exponential variation of density with altitude are assumed and generalized curves for the variation of missile speed and deceleration with alt…
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Date:
August 25, 1953
Creator:
Allen, H. Julian & Eggers, A. J., Jr.
Force and pressure recovery characteristics at supersonic speeds of a conical spike inlet with a bypass discharging from the top or bottom of the diffuser in an axial direction
Description:
Force and pressure-recovery characteristics of a nacelle-type conical-spike inlet with a fixed-area bypass located in the top or bottom of the diffuser are presented for flight Mach numbers of 1.6, 1.8, and 2.0 for angles of attack from 0 degrees to 9 degrees. Top or bottom location of the bypass did not have significant effects on diffuser pressure-recovery, bypass mass-flow ratio, or drag coefficient over the range of angles of attack, flight Mach numbers, and stable engine mass-flow ratios i…
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Date:
March 23, 1953
Creator:
Allen, J. L. & Beke, Andrew
Force and pressure recovery characteristics at supersonic speeds of a conical spike inlet with bypasses discharging in an axial direction
Description:
Report presenting an investigation of an axially symmetric nacelle-type conical spike inlet with two bypasses located in the horizontal plane and on opposite sides of the nacelle in the 8- by 6-foot supersonic tunnel at several Mach numbers and angles of attack. Results regarding the performance with open bypasses and with closed bypasses are provided.
Date:
January 30, 1953
Creator:
Allen, J. L. & Beke, Andrew
Performance comparison at supersonic speeds of inlets spilling excess flow by means of bow shock, conical shock, or bypass
Description:
Report presenting a comparison of fixed-geometry, translating-spike, and bypass-inlets on the basis of turbojet- and ramjet-engine performance. Results regarding a comparison of the experimental data and its application to ramjet and turbojet engines are provided.
Date:
October 23, 1953
Creator:
Allen, J. L. & Beke, Andrew
The Effect of Blade-Section Camber on the Stall-Flutter Characteristics of Three NACA Propellers at Zero Advance
Description:
Report presenting an investigation to determine the effect of blade-section camber on the stall-flutter characteristics of three propellers using a 6000-horsepower propeller dynamometer. Up to a certain blade angle, there was an increase in flutter-speed coefficient with an increase in blade-section design lift coefficient. An increase in thrust was found to lead to an increase in tip Mach number in the flutter region of the propeller blades.
Date:
April 6, 1953
Creator:
Allis, Arthur E. & Swihart, John M.
Transonic Aerodynamic and Trim Characteristics of 1/15-Scale Models of the Convair MX-1964 Airplane With Indented Fuselage
Description:
Report presenting an investigation of two scale models of the MX-1964 airplane with indented fuselage conducted in the transonic tunnel. One model had a plane delta wing with full-span elevons and the other had a cambered delta wing with partial-span elevons. Results regarding the aerodynamic characteristics and effect of elevon deflection are provided.
Date:
1953
Creator:
Allis, Arthur E.; Swihart, John M. & Foss, Willard E., Jr.
The Determination of Mesothorium in Thorium Nitrate
Description:
No Description Available.
Date:
November 1, 1953
Creator:
Allison, M.; Moore, R.W.; Richardson, A.E.; Peterson, D.T. & Voigt, A.F.
Kinetics of the Los Alamos Power Reactor Experiment (LAPRE)
Description:
A theoretical study of the kinetics of a model of the Los Alamos Power Reactor Experiment (LAPRE) was made through integration of the dynamic equations with the IBM 701 computer. The stability is investtgated under various conditions of power demand, rod-induced reactivity changes, and other conditions especially applicable to LAPRE. The results are given in graphical form, along with conclusions as to appropriate conditions of operation. (auth)
Date:
December 1, 1953
Creator:
Allred, J. C. & Carter, D. S.
Kinetics of the Los Alamos Power Reactor Experiment (LAPRE)
Description:
A theoretical study of the kinetics of a model of the Los Alamos Power Reactor Experiment (LAPRE) was made through integration of the dynamic equations with the IBM 701 computer. The stability is investigated under various conditions of power demand, rod-induced reactivity changes, and other conditions especially applicable to LAPRE. The results are given in graphical form, along with conclusions as to appropriate conditions of operation.
Date:
December 1953
Creator:
Allred, John C. & Carter, David S., 1926-
Some Comments on the Selection of Operating Temperatures for DPR
Description:
The results of this investigation indicate that maximum electric power generation can be obtained by selecting the turbine steam temperature within a range of plus/minus 30 degrees C. from an "idealized" steam temperature. This "idealized" steam temperature is shown to depend primarily on the maximum permissible uranium temperature. The minimum available condenser temperature and the temperature rise of the coolant in the pile effect the selection of the turbine steam temperature to lesser ex…
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Date:
November 16, 1953
Creator:
Altmann, Manfred.
Berkeley Proton Linear Accelerator
Description:
A linear accelerator, which increases the energy of protons from a 4 Mev Van de Graaff injector, to a final energy of 31.5 Mev, has been constructed. The accelerator consists of a cavity 40 feet long and 39 inches in diameter, excited at resonance in a longitudinal electric mode with a radio-frequency power of about 2.2 x 10{sup6} watts peak at 202.5 mo. Acceleration is made possible by the introduction of 46 axial "drift tubes" into the cavity, which is designed such that the particles travers…
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Date:
October 13, 1953
Creator:
Alvarez, Luis W.; Bradner, Hugh; Franck, Jack; Gordon, Hayden; Gow, J. Donald; Marshall, Lauristen C. et al.
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