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NACA Research Memorandums
211
Atomic Energy Commission Reports
90
Hanford Works Reports
48
HW (Series)
37
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25
Oak Ridge National Laboratory Reports
21
University of California Radiation Laboratory Reports
19
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13
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11
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Bibliography and Index on Vacuum and Low Pressure Measurement
From Introduction: "This paper consists essentially of a) a bibliography, b) an author index, and c) an index of the subject matter of the bibliography. While the primary objective is to focus on vacuum measurement, it was believed essential to include in the bibliography articles on vacuum technology in some measure accessory or essential to vacuum measurement. For maximum usefulness, an index of the subject matter of the references has been prepared. The abstract publications listed in the previous paragraph have been freely drawn upon in preparing the bibliography."
Date:
November 10, 1961
Creator:
Brombacher, W. G.
Object Type:
Report
System:
The UNT Digital Library
Thermodynamic and Related Properties of Parahydrogen From the Triple Point to 100 K at Pressures to 340 Atmospheres
From Introduction: "In the present report, therefore, polynomials representing isotherms and isochores are combined with numerical methods of computation for the purpose of improving accuracy, in particular for the derivatives of the P-p-T surface."
Date:
August 10, 1965
Creator:
Roder, H. M.; Weber, L. A. & Goodwin, R. D.
Object Type:
Report
System:
The UNT Digital Library
A Table of Radiation Characteristics for Uniformly Spaced Optimum Endfire Arrays with Equal Sidelobes
From Abstract: "Numerical results, in table form, on the required phases, the directive gain, the current excitations, the location of all the sidelobes and nulls, and the beamwidths for uniformly spaced optimum endfire arrays with equal sidelobes are given."
Date:
December 10, 1965
Creator:
Ma, M. T. & Hyovalti, D. C.
Object Type:
Report
System:
The UNT Digital Library
Effect of Exposure Site on Weather Resistance of Porcelain Enamels Exposed for Three Years
From Introduction: "The present report describes the condition of all of the porcelain enamels after exposure for 3 yr."
Date:
April 10, 1962
Creator:
Moore, Dwight G. & Potter, Alan
Object Type:
Report
System:
The UNT Digital Library
Camden-Delaware Valley Area (ARMS-II)
Report regarding an Aerial Radiological Measuring Survey (ARMS) of the Camden-Delaware Valley area that was part of a national program to measure environmental levels of gamma radiation. 6,000 traverse miles were examined around Camden, New Jersey.
Date:
November 10, 1961
Creator:
Guillou, R. B.
Object Type:
Report
System:
The UNT Digital Library
A Flight Study of the Effects of Noise Filtering in the Attack Display on the Pilot's Tracking Performance
Memorandum presenting flight tests conducted with a director-type radar fire-control system, with scope presentation of the steering information, to determine the effects of attack-display smoothing on the pilot's tracking and steering effectiveness in tail-chase and lead-collision beam attacks. Results regarding tail-chase attacks and lead-collision beam attacks are provided.
Date:
September 10, 1958
Creator:
Turner, Howard L. & Heinle, Donovan R.
Object Type:
Report
System:
The UNT Digital Library
Effect of Combustion Gas Properties on Turbojet-Engine Performance With Hydrogen as Fuel
Memorandum presenting an analysis comparing engine performance determined by use of a method involving adjustment of engine cycle calculations using JP-4 fuel with performance obtained using hydrogen as a fuel.
Date:
April 10, 1956
Creator:
English, Robert E.
Object Type:
Report
System:
The UNT Digital Library
Force and Pressure-Distribution Investigation to High Angles of Attack on All-Movable Triangular and Rectangular Wings in Combination With a Body at Supersonic Speeds
Force and pressure distribution studies to high angles of attack on all-movable triangular and rectangular wings in combination with body at supersonic speeds. The ranges of aspect ratios were, for the triangular wings, 3/8 to 4, and for the rectangular wings, 1 to 3.
Date:
July 10, 1956
Creator:
Hill, William A., Jr. & Kaattari, George E.
Object Type:
Report
System:
The UNT Digital Library
Investigation of Three Low-Temperature-Ratio Combustor Configurations in a 48-Inch-Diameter Ram-Jet Engine
Memorandum presenting a preliminary evaluation of three types of combustor configuration in a 48-inch-diameter ramjet engine in order to select the one with the greatest promise of efficient and stable combustion at low fuel-air ratios and low combustor-inlet pressures. Results regarding the inlet conditions, performance, and a comparison of the configurations are provided.
Date:
March 10, 1954
Creator:
Meyer, Carl L. & Weina, Harry J.
Object Type:
Report
System:
The UNT Digital Library
Impingement of water droplets on an NACA 65(sub 1) -212 airfoil at an angle of attack of 4 degrees
The trajectories of droplets in the air flowing past an NACA 651-212 airfoil at an angle of attack of 40 were determined. The collection efficiency, the area of droplet impingement, and the rate of droplet impingement were calculated from the trajectories and are presented herein.
Date:
September 10, 1952
Creator:
Brun, Rinaldo J.; Serafini, John S. & Moshos, George J.
Object Type:
Report
System:
The UNT Digital Library
Investigations of Slot Configurations for Film-Cooled Turbine Blades by Flow Visualization Methods
Memorandum presenting a procedure for obtaining qualitative information on the effectiveness of different slot configurations to make the flow of the cooling air visible. Two methods are utilized: one utilizes the traces caused by a reaction between paint spread over the blade surface and a gas mixed with the cooling air, while the other utilized smoke mixed with the cooling air to make it visible. From the visual observations, the use of a continuous slot as a means of creating the cooling film over the blade surface appeared to be superior to the use of holes or grooves.
Date:
October 10, 1950
Creator:
Eckert, E. R. G.; Jackson, Thomas W. & Francisco, Allen C.
Object Type:
Report
System:
The UNT Digital Library
Investigation of a 1/4-Scale Model of the Republic F-105 Airplane in the Langley 19-Foot Pressure Tunnel: Lateral Control and Directional Stability and Control Characteristics of Model Equipped With Drooped, Supersonic-Type, Elliptical Wing-Root Inlet
Report presenting low-speed testing of the Republic F-105 airplane in the pressure tunnel to determine the plane's lateral control and directional stability and control characteristics. Various combinations of components were tested, including tares, spoilers, ailerons, and wing fences.
Date:
November 10, 1955
Creator:
Cancro, Patrick A. & Kelly, H. Neale
Object Type:
Report
System:
The UNT Digital Library
Analytical determination of local surface heat-transfer coefficients for cooled turbine blades from measured metal temperatures
From Summary: "Procedures for applying these analytical methods to experimentally measured blade-metal temperatures are presented. Data are presented for the leading and trailing edge of a symmetrical water-cooled blade to illustrate the validity of the methods for those portions of the blade. In addition to the application to turbine blades, the methods can be applied to any heat-transfer apparatus having a profile that can be approximated by the shape discussed."
Date:
April 10, 1950
Creator:
Brown, W. Byron & Esgar, Jack B.
Object Type:
Report
System:
The UNT Digital Library
Effect of Throat Bleed on the Supersonic Performance of a Half-Conical Side-Inlet System
Memorandum presenting an experimental investigation conducted at Mach numbers 1.5, 1.8, and 2.0 to determine the effects of several throat boundary-layer bleed configurations on the performance of a 25 degree half-conical side-inlet system. The effects of several flush-slot configurations and a porous-surface bleed were determined over ranges of angle of attack and bleed-duct and main-duct mass flow.
Date:
January 10, 1956
Creator:
Sitt, Leonard E.; McKevitt, Frank X. & Smith, Albert B.
Object Type:
Report
System:
The UNT Digital Library
Transonic Flutter Characteristics of a Cambered A-Plan-Form Wing With and Without Simulated Nacelles
Report presenting an experimental investigation to determine the effects of simulated engine nacelles on the flutter characteristics of a cambered A-plan-form wing with 45 degree sweepback of the leading edge, an aspect ratio of 3.6, and a taper ratio of 0.14. Results regarding a wing-mount fixed and a model with wing mount free are provided.
Date:
July 10, 1957
Creator:
Kelly, H. Neale
Object Type:
Report
System:
The UNT Digital Library
Performance at High Temperatures and Pressures of an Annular Turbojet Combustor Having Articulated Liner Walls
Report discussing the performance of an experimental quarter-sector annular combustor at conditions simulating supersonic flight of a cooled-turbine engine, as well as 20 different modification to the design. The final configuration was found to show no structural failures and little or no warping of liner parts after 40 hours of operation.
Date:
May 10, 1957
Creator:
McCafferty, Richard J.; Wear, Jerrold D. & Cook, William P.
Object Type:
Report
System:
The UNT Digital Library
Lateral-Control Characteristics and Dihedral Effect of a Wing-Body Combination With a Variable-Incidence Triangular Wing and Wing-Tip Ailerons at a Mach Number of 1.52
Memorandum presenting an investigation of aileron effectiveness and dihedral effect for a wing-body combination with a variable-incidence triangular wing with modified half-delta controls at the wing tips. The tests were conducted at a Mach number of 1.52 at a Reynolds number of 0.82 million. The experimental value of aileron effectiveness at 0 degrees angle of attack was approximately 78 percent of the value predicted by linear theory, and the effectiveness decreased with increasing wing angle of attack.
Date:
January 10, 1951
Creator:
Scherrer, Richard & Dennis, David H.
Object Type:
Report
System:
The UNT Digital Library
Heat Transfer in Regions of Separated and Reattached Flows
Memorandum presenting the results of some investigations of separation on heat transfer and a method of reducing separation and shows the heat transfer in regions of separation and reattachment for a few specific shapes. The results show that heat transfer in a separated region is strongly affected by the extent of separation, the location of the reattachment point, and the location of transition along the separated boundary.
Date:
June 10, 1957
Creator:
Crawford, Davis H. & Rumsey, Charles B.
Object Type:
Report
System:
The UNT Digital Library
Wind-Tunnel Investigation at a Mach Number of 2.01 of the Aerodynamic Characteristics in Combined Angles of Attack and Sideslip of Several Hypersonic Missile Configurations with Various Canard Controls
"An investigation of the aerodynamic characteristics of several hypersonic missile configurations with various canard controls for an angle-of-attack range from 0 deg to about 28 deg at sideslip angles of about 0 deg and 4 deg at a Mach number of 2.01 has been made in the Langley 4- by 4-foot supersonic pressure tunnel. The configurations tested were a body alone which had a ratio of length to diameter of 10, the body with a 10 deg flare, the body with cruciform fins of 5 deg or 15 deg apex angle, and a flare-stabilized rocket model with a modified Von Karman nose" (p. 1). Various canard surfaces for pitch control only were tested on the body with the 10 deg flare and on the body with both sets of fins. The results indicated that the addition of a flared afterbody or cruciform fins produced configurations which were longitudinally and directionally stable. The body with 5 deg fins should be capable of producing higher normal accelerations than the flared body. A l l of the canard surfaces were effective longitudinal controls which produced net positive increments of normal force and pitching moments which progressively decreased with increasing angle of attack.
Date:
March 10, 1958
Creator:
Robinson, Ross B.
Object Type:
Report
System:
The UNT Digital Library
The Appearance of a Boric Oxide Exhaust Cloud From a Turbojet Engine Operating on Trimethylborate Fuel
Memorandum presenting an investigation conducted on the size and density of the boric oxide exhaust cloud from a J47-25 turbojet engine operating on trimethyl-borate fuel at sea-level static conditions. Movies and still photographs were taken from the ground and from a helicopter. Results regarding the visual observation and oxide fallout and concentration are provided.
Date:
August 10, 1956
Creator:
Lord, Albert M. & Kaufman, Warner B.
Object Type:
Report
System:
The UNT Digital Library
Flutter Experiments With Various Control Configurations
Report discussing the flutter characteristics of several control-surface configurations, including a wing with tip ailerons, an all-movable stabilizer, vertical tails with trailing-edge rudders, a t-tail, and some simple models of all-movable controls. Some trends of the configurations and suggestions for improving the flutter characteristics are provided.
Date:
July 10, 1957
Creator:
Boswinkle, Robert W., Jr. & Morgan, Homer G.
Object Type:
Report
System:
The UNT Digital Library
Free-Flight Skin Temperature and Pressure Measurements on a Slightly Blunted 25 Deg Cone-Cylinder-Flare Configuration to a Mach Number of 9.89
"Skin temperatures and surface pressures have been measured on a slightly blunted cone-cylinder-flare configuration to a maximum Mach number of 9.89 with a rocket-propelled model. The cone had a total angle of 25 deg and the flare had a 10 deg half-angle. Temperature data were obtained at eight cone locations, four cylinder locations, and seven flare locations; pressures were measured at one cone location, one cylinder location, and three flare locations" (p. 1).
Date:
April 10, 1957
Creator:
Bond, Aleck C. & Rumsey, Charles B.
Object Type:
Report
System:
The UNT Digital Library
The Sodium Hydroxide Reactor - Effect of Reactor Variables on Criticality and Fuel- Element Temperature Requirements for Subsonic and Supersonic Aircraft Nuclear Propulsion
Report presenting two-group criticality calculations for sodium-hydroxide-cooled, moderated, and reflected reactors for various concentrations and compositions of reactor fuel-element structural material. The investigation was performed in order to determine the applicability of the fuel properties to power a nuclear aircraft. Results regarding the specific reactor calculations, reflector savings, criticality generalization, typical neutron flux and heat-generation distributions, static stability characteristics and excess uranium requirements, reactor heat-transfer characteristics, and airplane and turbojet cycle characteristics are provided.
Date:
February 10, 1953
Creator:
Bogart, Donald & Valerino, Michael F.
Object Type:
Report
System:
The UNT Digital Library
Some Experimental Heating Data on Convex and Concave Hemispherical Nose Shapes and Hemispherical Depressions on a 30-Degree Blunted Nose Cone
Report discussing heat data obtained on concave and convex hemispherical nose shapes and hemispherical depressions on a blunted 30-degree nose cone at a variety of Mach numbers. Both hot-jet tests and flight tests were carried out.
Date:
March 10, 1958
Creator:
Hopko, Russell N. & Strass, H. Kurt
Object Type:
Report
System:
The UNT Digital Library