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200 area weekly report

Description: This is the weekly progress report for the 200 area for the week of November 10, 1955. Areas discussed pertaining to the solvent extraction plants include operation status, 232-F Building, 221-F - NFE dissolver, 200-F - solvent purification, 221-F - increased throughput, 241-F additional waste storage tanks, 221-F canyon pumps.
Date: November 10, 1955
Item Type: Refine your search to only Report
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Acoustic analysis of ram-jet buzz

Description: From Introduction: "The surging of a system containing a centrifugal- or axial-flow compressor (e.g., refs. 1 to 4) is an example of self-sustained oscillation. Inlets designed for supersonic jet engines also have been observed to induce oscillations (e.g., refs. 5 to 11) which are usually referred to as "buzz." The origin of buzz in ram-jet engines is the subject of the present report."
Date: November 1955
Creator: Mirels, Harold
Item Type: Refine your search to only Report
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Aerodynamic Characteristics of a Small-Scale Shrouded Propeller at Angles of Attack From 0 to 90 Degrees

Description: Note presenting an investigation to determine the effects of airspeed and angle of attack on the lift, drag, and pitching moment of a shrouded-propeller model with a shroud length of about two-thirds the propeller diameter over an angle of attack from 0 to 90 degrees. Tests were made of the complete model with the propeller operating and also of the shroud and motor combination with the propeller removed.
Date: November 1955
Creator: Parlett, Lysle P.
Item Type: Refine your search to only Report
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Aerodynamic Design of Axial-flow Compressors 6 - Experimental Flow in Two-Dimensional Cascades

Description: "Available experimental two-dimensional cascade data for conventional compressor blade sections are correlated at a reference incidence angle in the region of minimum loss. Variations of reference incidence angle, total-pressure loss, and deviation angle with cascade geometry, inlet Mach number, and Reynolds number are investigated. From the analysis and the correlations of the available data, rules and relations are evolved for the prediction of blade-profile performance" (p. 1).
Date: November 11, 1955
Creator: Lieblein, Seymour
Item Type: Refine your search to only Report
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Aerodynamic Loads on an External Store Adjacent to a 45 Degree Sweptback Wing at Mach Numbers From 0.70 to 1.96, Including an Evaluation of Techniques Used

Description: "Aerodynamic forces and moments have been obtained in the Langley 9- by 12-inch blowdown tunnel on an external store and on a 45 degree swept-back wing-body combination measured separately at Mach numbers from 0.70 to 1.96. The wing was cantilevered and had an aspect ratio of 4.0; the store was independently sting-mounted and had a Douglas Aircraft Co. (DAC) store shape. The angle of attack range was from -3 degrees to 12 degrees and the Reynolds number (based on wing mean aerodynamic chord) va… more
Date: November 15, 1955
Creator: Guy, Lawrence D. & Hadaway, William M.
Item Type: Refine your search to only Report
open access

Analysis of Low-Temperature Nuclear-Powered Ram-Jet Missile for High Altitudes

Description: Report presenting the gross weight and uranium investment of nuclear-powered, direct-air, shieldless, ram-jet missiles for a range of altitudes and Mach numbers. Results regarding the effect of reactor operating conditions and flight conditions on ramjet performance and effect of assumptions on ramjet performance are provided.
Date: November 9, 1955
Creator: Sams, Eldon W. & Rom, Frank E.
Item Type: Refine your search to only Report
open access

Analysis of Low-Temperature Nuclear-Powered Ramjet Missile for High Altitudes

Description: From Summary: "The reactor operating conditions were varied to enable selection of values giving a good compromise between low uranium investment and loss gross weight at each altitude and flight Mach number considered. The corresponding values of reactor and missile operating conditions are presented in the report."
Date: November 9, 1955
Creator: Rom, F. E. & Sams, E. W.
Item Type: Refine your search to only Report
open access

The Anatomy of Plasmons

Description: From abstract: "Plamons (plasma-magnetic entities) are toroidal "packages" of plasma wrapped up in their own magnetic field. Experimental evidence for the existence of plasmons is adduced and theoretical considerations concerning their various types and their stability are discussed."
Date: November 15, 1955
Creator: Bostick, W. H.
Item Type: Refine your search to only Report
open access

Antiprotons

Description: Since the development of Dirac's theory of the electron and the brilliant confirmation of one of its most startling predictions by the discovery of the positron by Anderson, it has been assumed most likely that the proton would also have its charge conjugate, the antiproton. The properties that define the antiproton are: (a) charge equal to the electron charge (also in sign); (b) mass equal to the proton mass; (c) stability against spontaneous decay; (d) ability to annihilate by interaction wit… more
Date: November 29, 1955
Creator: Chamberlain, Owen; Segre, Emilio & Wiegand, Clyde
Item Type: Refine your search to only Report
open access

Arc Research. Some Considerations on the Application of the A-48 to the Sherwood Program

Description: An outline is presented of an omnitron source scheme in which the sheath voltage is not carried over into the reactor region. The lines of force defining the region of greatest potential drop are bent so that they return to the center electrode, rather than extending to the reactor chamber. The sheath electrons follow the bent lines of force, and the ions follow the main magnetic field pattern outside the sheath. With such a design it is possible in principle to transfer ions from the omnitron … more
Date: November 1, 1955
Creator: Hiskes, J.R.
Item Type: Refine your search to only Report
open access

Bevatron Operation and Development, VI

Description: A large fraction of the effort on high-energy physics this quarter was devoted to the study of K particles. Ten of the fourteen external laboratory groups, as well as seven of the internal laboratory groups, used the K{sup {+-}}-beam facilities. These experiments included measurements of lifetimes, modes of decay; and excitation functions. Counters and cloud-chamber techniques were used in addition to nuclear emulsions. Measurements of total and differential cross-sections for {pi}{sup -} meson… more
Date: November 18, 1955
Item Type: Refine your search to only Report
open access

Boundary-Layer Transition at High Reynolds Numbers as Obtained in Flight of a 20 Degree Cone-Cylinder With Wall to Local Stream Temperature Ratios Near 1.0

Description: Boundary-layer transition data at low ratios of wall to local stream temperature have been obtained during the free flight of a highly polished cone-cylinder to a maximum Mach number of 5.02 A maximum transition Reynolds number of 32 x 10(exp 6) occurred at a distance of 25.84 inches from the cone apex. The temperature ratio at transition for a local Mach number of 4.0 was approximately 1.30 as compared with theoretical infinite stability solutions of 1.47 and 1.65 by Dunn and Lin (three-dimens… more
Date: November 3, 1955
Creator: Rabb, Leonard & Disher, John H.
Item Type: Refine your search to only Report
open access

Centrifugal casting of plate-type fuel elements

Description: From introduction: "Centrifugal casting appeared to be the only method by which the intricate shape could be produced in a cold mold. With this in mind, a program was initiated for the purpose of determining the feasibility of centrifugally casting plates of uranium-5 w.o chromium and uranium-2 w/o zirconium."
Date: November 10, 1955
Creator: Saller, Henry A.; Dickerson, Ronald F. & Murr, William E.
Item Type: Refine your search to only Report
open access

Charts for Estimating Performance of High-Performance Helicopters

Description: "Theoretically derived charts showing the profile-drag-thrust ratio are presented for helicopter rotors operating in forward flight and having hinged rectangular blades with a linear twist of 0 degree, 8 degrees, and 16 degrees. The charts, showing the profile-drag characteristics of the rotor for various combinations of pitch angle, ratio of thrust coefficient to solidity, and a parameter representing shaft power input, are presented for tip-speed ratios ranging from 0.05 to 0.50. Also present… more
Date: November 23, 1955
Creator: Gessow, Alfred & Tapscott, Robert J.
Item Type: Refine your search to only Report
open access

Charts of boundary-layer mass flow and momentum for inlet performance analysis mach number range, 0.2 to 5.0

Description: From Summary: "Mass flow and momentum for various fractions of a turbulent boundary layer are presented in chart form for a range of velocity profiles and for Mach numbers from 0.2 to 5.0. These charts are intended to assist the analyst and designer of boundary-layer removal systems. Application of the charts to inlets of arbitrary shape and to the determination of the pressure recovery of rectangular, normal-shock inlets immersed in boundary layer is described."
Date: November 1955
Creator: Simon, Paul C. & Kowalski, Kenneth L.
Item Type: Refine your search to only Report
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