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Heat-Exchanger-Core Weights for Use With Hydrogen-Expansion Turbine

Description: Memorandum presenting an analysis of probable heat-exchanger weights for stationary and rotary regenerator heat exchangers for use in a hydrogen-expansion turbine engine. This is because rotary regenerators offer possibilities for a considerably lighter heat-exchanger core, possibly one-fourth that of the stationary regenerators.
Date: October 3, 1957
Creator: Reynolds, Thaine W.
Partner: UNT Libraries Government Documents Department
open access

Investigation of Rotating-Stall Limits in a Supersonic Turbofan Engine

Description: Memorandum presenting a theoretical mixed-jet one-spool turbofan engine analyzed over a range of flight Mach numbers up to 2.95. The engine was characterized by an eight-stage fan-compressor unit. Results regarding performance maps, rotating stall, turbofan inlet axial velocity, and weight-flow variations are provided.
Date: October 3, 1957
Creator: Dugan, James F., Jr.
Partner: UNT Libraries Government Documents Department
open access

A Note on the Ability to Predict Transonic Drag-Rise Changes Due to Model Modifications

Description: Memorandum presenting an experimental and analytical study made at transonic speeds up to Mach number 1.43 to determine the ability of present calculation procedures to predict transonic drag-rise changes which result from physical model changes. Both wing-body and wing-body-tail configurations were investigated.
Date: October 3, 1957
Creator: Pierpont, P. Kenneth
Partner: UNT Libraries Government Documents Department
open access

Collection of zero-lift drag data on bodies of revolution from free-flight investigations

Description: Report presenting a compilation of most of the zero-lift drag obtained from free-flight measurements on fin-stabilized bodies of revolution. Results regarding friction drag, base pressure and base drag, pressures on a forward facing step, and fin pressure drag are provided.
Date: September 3, 1957
Creator: Stoney, William E., Jr.
Partner: UNT Libraries Government Documents Department
open access

Experimental Investigation of Effects of Combustion-chamber Length and Inlet Total Temperature, Total Pressure, and Velocity on Afterburner Performance

Description: Report presenting an investigation of the effects of afterburner-inlet total temperature, total pressure, velocity, fuel-air ratio, and afterburner combustion-chamber length on afterburner performance and stability limits using a cylindrical afterburner installed in a duct test rig. The afterburner was investigated over a range of total temperature, total pressure, velocity, and afterburner fuel-air ratios.
Date: June 3, 1957
Creator: King, Charles R.
Partner: UNT Libraries Government Documents Department
open access

Calculated and Measured Stresses in Simple Panels Subject to Intense Random Acoustic Loading Including the Near Noise Field of a Turbojet Engine

Description: "Flat 2024-T3 aluminum panels measuring 11 inches by 13 inches were tested in the near noise fields of a 4-inch air jet and turbojet engine. The stresses which were developed in the panels are compared with those calculated by generalized harmonic analysis. The calculated and measured stresses were found to be in good agreement. In order to make the stress calculations, supplementary data relating to the transfer characteristics, damping, and static response of flat and curved panels under peri… more
Date: June 3, 1957
Creator: Lassiter, Leslie W. & Hess, Robert W.
Partner: UNT Libraries Government Documents Department
open access

Homogeneous Reactor Project Quarterly Progress Report: February-April 1957

Description: Report issued by the Oak Ridge National Laboratory discussing quarterly progress of the Homogeneous Reactor Project. Progress of operations, design, development, and analysis is presented. This report includes tables, illustrations, and photographs.
Date: September 3, 1957
Creator: Briggs, R. B.; Winters, C. E.; Beall, S. E.; Lane, J. A.; Bohlmann, E. G.; Ferguson, D. E. et al.
Partner: UNT Libraries Government Documents Department
open access

Automatic Sample Changer

Description: Automatic sample changer developed to increase the number of samples that can be handled daily.
Date: January 3, 1957
Creator: Rankin, M. O. & Harvey, R. A.
Partner: UNT Libraries Government Documents Department
open access

Summary of NACA Research on Ignition Lag of Self-Igniting Fuel - Nitric Acid Propellants

Description: Memorandum presenting a summary of ignition-lag data obtained from 1949 to 1956 in terms of dependence on temperature, pressure, reactor geometry, mixing method, and propellant composition. Analysis of the results and comparisons with data from other sources indicate agreement with a chemical kinetics model provided that mixing is reasonably energetic.
Date: October 3, 1957
Creator: Morrell, Gerald
Partner: UNT Libraries Government Documents Department
open access

Aerodynamic characteristics at Mach number of 4.06 of a typical supersonic airplane model using body and vertical-tail wedges to improve directional stability

Description: Report presenting an investigation at Mach number 4.06 on a typical supersonic airplane model with a 40 degree sweptback wing. The purpose of the investigation was to determine the effectiveness of using wedges on the body and on the vertical tail to increase the static directional stability. Results regarding the longitudinal characteristics and lateral characteristics are provided.
Date: December 3, 1957
Creator: Dunning, Robert W.
Partner: UNT Libraries Government Documents Department
open access

A Note on the Ability to Predict Transonic Drag-Rise Changes Due to Model Modifications

Description: Report presenting an experimental and analytical study at transonic speeds up to Mach number 1.43 to determine the ability of present calculation procedures to predict transonic drag-rise changes resulting from physical model changes. Results regarding wing-body configurations, wing-body-tail configurations, and drag-rise change are provided. With the exception of the model with the bluff forebody and afterbody, the currently available calculative procedures provided estimates of transonic drag… more
Date: October 3, 1957
Creator: Pierpont, P. Kenneth
Partner: UNT Libraries Government Documents Department
open access

Heat-exchanger-core weights for use with hydrogen expansion turbine

Description: Report presenting an analysis of probable heat-exchanger weights for stationary and rotary regenerator heat exchangers for use in a hydrogen-expansion turbine engine. Rotary regenerators may be used for a considerably lighter heat-exchanger core, possibly one-fourth that of the stationary regenerators.
Date: October 3, 1957
Creator: Reynolds, Thaine W.
Partner: UNT Libraries Government Documents Department
open access

Effects of string-support interference on the drag of an olgive-cylinder body with and without a boatail at 0.6 to 1.4 Mach number

Description: Report presenting tests to determine the effects of sting-support interference on the zero-lift drag of two bodies of revolution (with and without boattailing). The sting support consisted of a constant-diameter sting followed by a sting flare terminating in a cylindrical support. Results regarding the effect of sting length and sting diameter are provided.
Date: December 3, 1957
Creator: Lee, George & Summers, James L.
Partner: UNT Libraries Government Documents Department
open access

Investigation at High Subsonic Speeds of the Static Longitudinal and Lateral Stability Characteristics of Two Canard Airplane Configurations

Description: "The present investigation was conducted in the Langley high-speed 7-by 10-foot tunnel to determine the static longitudinal and lateral stability characteristics at high subsonic speeds of two canard airplane configurations previously tested at supersonic speeds. The Mach number range of this investigation extended from 0.60 to 0.94 and a maximum angle-of-attack range of -2deg to 24deg was obtained at the lowest test Mach number. Two wing plan forms of equal area were studied in the present tes… more
Date: December 3, 1957
Creator: Sleeman, William C., Jr.
Partner: UNT Libraries Government Documents Department
open access

Effect of fuel properties on liner temperatures in a single tubular turbojet combustor

Description: Report presenting the effect of fuel properties on combustion-liner temperatures in a single tubular combustor at combustor-inlet conditions representative of those encountered in turbojet-powered high-flight-speed aircraft. Testing was conducted with three liquid jet-type fuels that varied in voltaility and aromatic content. The variations in fuel properties were found to produce only moderate and not always consistent changes in average liner temperature.
Date: June 3, 1957
Creator: Butze, Helmut F.
Partner: UNT Libraries Government Documents Department
open access

Experimental Investigation of Modified Cast-Cored Blades Having Hollow Tip Sections

Description: Memorandum presenting the development of fabrication techniques to provide cast-cored turbine blades with hollow tip sections. Two types of modified cast-cored blades that provided an 11-percent weight reduction from a fully cast-cored blade and a 13-percent weight reduction from a standard uncooled blade were investigated in a turbojet engine modified for air-cooling. Results regarding the experimental heat-transfer, temperature comparison with other cooled-blade configurations, calculated and… more
Date: June 3, 1957
Creator: Oldrieve, Robert E. & Freche, John C.
Partner: UNT Libraries Government Documents Department
open access

Aerodynamic Characteristics of a Model of an Escape Capsule for a Supersonic Bomber-Type Airplane at a Mach Number of 2.49

Description: Report discussing an investigation of the aerodynamic characteristics of a model of an escape capsule with and without stabilizing fins for a supersonic bomber-type airplane. Lift, drag, longitudinal and lateral stability characteristics, and photographs of the capsule model are presented.
Date: December 3, 1957
Creator: Presnell, John G., Jr.
Partner: UNT Libraries Government Documents Department
open access

Analysis of two-spool turboprop-engine characteristics

Description: From Introduction: "The purpose of this report is to present the results of an analytical investigation of the engine characteristics of two-spool engines with high over-all compressor pressure ratio (12.0 at design). Some of the turbine design problems encountered in a single-spool engine with current compressor pressure ratio (7.32 at design) were investigated in reference 1. The investigation was extended in reference 2 to cover the effect of mode of engine operation on the turbine design re… more
Date: June 3, 1957
Creator: Davison, Elmer H.
Partner: UNT Libraries Government Documents Department
open access

Effect of Quadrupole Lenses

Description: "The effect of correcting quadrupole lenses on the betatron oscillation characteristics of an AG synchrotron was studied, and general formulas are given for the fractional changes of the amplitude and phase functions. Calculations performed for different setups of different numbers of lenses for the CEA synchrotron structure point out that one may correct for sizable errors in the n- value by means of 8 pairs of quadrupole lenses in two consecutive straight sections with the focusing lens betwe… more
Date: June 3, 1957
Creator: Lanza, G. & Steffen, Klaus G.
Partner: UNT Libraries Government Documents Department
open access

Section 9.0 to Status Report on the Disposal of Radioactive Wastes

Description: Section 9.0 is the "Chemical Processes for Fission Product Concentration, Removal or Fixation" section of the Status Report on the Disposal of Radioactive Wastes. The report is divided into four areas: (1) Introduction; (2) Summary of waste processes; (3) Concept of a multipurpose waste processing facility; and (4) Details of some of the waste processes.
Date: September 3, 1957
Creator: Culler, Floyd L., Jr.
Partner: UNT Libraries Government Documents Department
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