Resource Type
Serial/Series Title
NACA Research Memorandums
269
NACA Technical Notes
133
Atomic Energy Commission Reports
113
NACA Technical Reports
54
NACA Technical Memorandums
50
United States Bureau of Mines Reports
48
Hanford Works Reports
33
Report of investigations (United States. Bureau of Mines)
30
HW (Series)
29
United States Geological Survey Reports
27
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741 Matching Results
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741
Effects of high-lift and stall-control devices, fuselage, and horizontal tail on a wing swept back 42 degrees at the leading edge and having symmetrical circular-arc airfoils sections at a Reynolds number of 6.9 x 10(exp 6)
Report presenting an investigation of the low-speed characteristics of a wing swept back 42 degrees at the leading edge and having various high-lift and stall-control devices and fuselage and horizontal tail vertical positions. Results regarding the characteristics of the basic wing, leading-edge flap investigation, wing fuselage investigation, and horizontal tail investigation are provided.
Date:
April 20, 1949
Creator:
Woods, Robert L. & Spooner, Stanley H.
Object Type:
Report
System:
The UNT Digital Library
Hydrodynamic Qualities of a 1/10-Size Powered Dynamic Model of the XP5Y-1 Flying Boat in Smooth Water: Langley Tank Model 246, TED No. NACA DE 320
"The hydrodynamic characteristics of a 1/10-size powered dynamic model of the XP5Y-1 flying boat were determined in Langley tank no. 1. Stable take-offs were possible at all practicable positions of the center of gravity and flap deflections. An increase in gross load from 123.5 to 150.0 pounds (21.5 percent) had only a slight effect on the stable range for take-off" (p. 1).
Date:
November 15, 1949
Creator:
Woodward, David R.; Weinstein, Irving & Whitaker, Walter E., Jr.
Object Type:
Report
System:
The UNT Digital Library
Corrosion Tests on Tantalum, Hastelloy C and Duriron in 234-5 Project Solutions
Introduction: "Room temperature and elevated temperature, static immersion and vapor suspicion, corrosion tests were conducted with Duriron, Hastelloy C, and tantalum in hydriotic acid and 234-5 project process supernatant solution (synthetic environments. The data relevant to these tests are contained herein."
Date:
February 25, 1949
Creator:
Work, J. B. & Koenig, W. W.
Object Type:
Report
System:
The UNT Digital Library
Performance of supersonic axial-flow compressors based on one-dimensional analysis
Report presenting an analytical study of four combinations of subsonic and supersonic flow in the rotor- and stator-blade passages of axial-flow compressors.
Date:
March 25, 1949
Creator:
Wright, Linwood C. & Klapproth, John F.
Object Type:
Report
System:
The UNT Digital Library
Uranium Possibilities in Arizona Exclusive of the Colorado Plateau
From introduction: This report represents an effort to assemble, relate, and evaluate available information about possible primary uranium mineralization in the state of Arizona. This is the initial step in preparation for a system ratio field study of the state.
Date:
December 1949
Creator:
Wright, Robert J.
Object Type:
Report
System:
The UNT Digital Library
Application of Radial-Equilibrium Condition to Axial-Flow Compressor and Turbine Design
Note presenting some of the basic general equations governing the three-dimensional compressible flow of gas through a compressor or a turbine in terms of velocity components, total enthalpy, and entropy. The equations are applied to investigate the maximum compatible number of the radial variations of the gas properties between successive blade rows that a designer is free to specify.
Date:
January 1949
Creator:
Wu, Chung-Hua & Wolfenstein, Lincoln
Object Type:
Report
System:
The UNT Digital Library
Application of Radial-Equilibrium Condition to Axial-Flow Compressor and Turbine Design
"Basic general equations governing the three-dimensional compressible flow of gas through a compressor or turbine are given in terms of total enthalpy, entropy, and velocity components of the gas. Two methods of solution are obtained for the simplified, steady axially symmetric flow; one involves the use of a number of successive planes normal to the axis of the machine and short distances apart, and the other involves only three stations for a stage in which an appropriate radial-flow path is used. Methods of calculation for the limiting cases of zero and infinite blade aspect ratios and an approximate method of calculation for finite blade aspect ratio are also given" (p. 1).
Date:
January 1, 1949
Creator:
Wu, Chung-Hua & Wolfenstein, Lincoln
Object Type:
Report
System:
The UNT Digital Library
Experimental pressure distribution on a asymmetrical nonconical body at Mach number 1.90
Report presenting an investigation of the pressure distribution on an asymmetrical nonconical body at a Mach number of 1.90 over a wide range of angles of attack and yaw. Pressure distributions occurred at anticipated trends. Results regarding the pressure coefficients, Schileren photographs, boundary layers, and pressure distributions are provided.
Date:
February 24, 1949
Creator:
Wyatt, DeMarquis D.
Object Type:
Report
System:
The UNT Digital Library
Cyclic engine operation of cast vitallium turbine blades at an exhaust-cone gas temperature of 1440 plus or minus 20 F
Report presenting an investigation conducted to determine the effects of increased gas temperatures on the performance of cast Vitallium blades in a turbojet engine. Results regarding the experimental investigation and metallurgical investigation are provided.
Date:
September 19, 1949
Creator:
Yaker, Charles & Garrett, Floyd B.
Object Type:
Report
System:
The UNT Digital Library
Burning Washington Coals on Different Types of Domestic Stokers in the Same Hot-Water Boiler: Comparison with Hand and Oil Firing
From Purpose and Scope: "This bulletin presents the results of an investigation of domestic stokers at the Northwest Experiment Station of the Bureau of Mines. Previous publications have dealt with the burning characteristics of Washington coals on a domestic overfeed stoker, a clinker-type domestic underfeed stoker, and an ash-removal-type domestic underfeed stoker designed for burning anthracite. This report includes all the principal results obtained on the three domestic stokers tested and compares these results with those obtained on the same hot-water boiler by hand-firing and oil-firing."
Date:
1949
Creator:
Yancey, H. F.; Johnson, K. A.; Cordiner, J. B., Jr.; Lewis, A. A. & Lunde, K. E.
Object Type:
Report
System:
The UNT Digital Library
A radar method of calibrating airspeed installations on airplanes in maneuvers at high altitudes and at transonic and supersonic speeds
A method of calibrating the static-pressure source of a pitot static airspeed installation on an airplane in level flight, dives, and other maneuvers at high altitude and at transonic and supersonic speeds is described. The method principally involves the use of radar-phototheodolite tracking equipment. The various sources of error in the method are discussed and sample calibrations are included.
Date:
August 31, 1949
Creator:
Zalovcik, John A.
Object Type:
Report
System:
The UNT Digital Library
Susceptibility to Welding Cracking, Welding Sensitivity, Susceptibility to Welding Seam Cracking, and Test Methods for These Failures
"In the years after the First World war a very rapid development, which even today has by no means come to an end, took place in the field of welding; here also, as in most technical innovations, failures made their appearance. Thereupon comprehensive Investigations were undertaken by steel manufacturers and consumers with cooperation of the authorities. In most cases the reasons for failure could be determined and eliminated and further occurrences avoided by the use of new test methods" (p. 1).
Date:
June 1949
Creator:
Zeyen, K. L.
Object Type:
Report
System:
The UNT Digital Library
Flow Measurement by Means of Light Interference
"There has been under development for the high-speed wind tunnel of the LFA an optical measuring arrangement for the qualitative and quantitative investigation of flow. By the use of interference measurements, the determination of density at the surface of the bodies being tested in the air stream and in the vicinity of these bodies can be undertaken. The results obtained so far in the simple preliminary investigations show that it is possible, even at a low Reynolds number, to obtain the density field in the neighborhood of a test body by optical means" (p. 1).
Date:
August 1949
Creator:
Zobel
Object Type:
Report
System:
The UNT Digital Library
Present status of research on boundary-layer control
Report presenting a survey of the present status of research on boundary-layer control and its possible applications in aeronautics. The applications considered include reduction of profile drag by the elimination of turbulent separation, increase of the maximum lift coefficient through control of separation, use of suction and blowing slots near the trailing edge of the airfoil as a means of lateral control, use of boundary-layer control as a means of increasing the efficiency of diffusers and bends, and the use of boundary-layer control to influence shock-boundary-layer interaction at high speeds.
Date:
January 12, 1949
Creator:
von Doenhoff, Albert E. & Loftin, Laurence K., Jr.
Object Type:
Report
System:
The UNT Digital Library
Annual Report of the National Advisory Committee for Aeronautics (30th). Administrative Report Including Technical Report Nos. 774 to 803
Report includes the National Advisory Committee for Aeronautics letter of submittal to the President, summaries of Committee's activities and research accomplished, bibliographies, and financial report.
Date:
1949
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Annual Report of the National Advisory Committee for Aeronautics (31st). Administrative Report Including Technical Report Nos. 804 to 833
Report includes the National Advisory Committee for Aeronautics letter of submittal to the President, summaries of research activities and research accomplished, bibliographies, and financial report.
Date:
1949
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Annual Report of the National Advisory Committee for Aeronautics (32nd). Administative Report Including Technical Report Nos. 834 to 862
Report includes the National Advisory Committee for Aeronautics letter of submittal to the President, summaries of the committee's activities and research accomplished, bibliographies, and financial report.
Date:
1949
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Final Engineering Report Covering Austin Beta-Gamma Hand and Foot Checker
Abstract: "This final report discusses the project objectives and the manner in which these were attained in connection with the design and manufacture of the Austin Beta-Gamma Hand and Foot checker (Fig 1). Improvements incorporated to conform the equipment to modern production methods, as well as practical changes to achieve automatic operation and increased stability and to facilitate and simplify maintenance procedures, are covered in detail. The report also includes photographs (Figs. 2 and 3) and a schematic diagram of the final product (Fig. 4)" (p. 1)
Date:
November 9, 1949
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Progress Report No. 39, Section 2: Reactor Physics
Report discussing theoretical reactor physics, applied reactor physics, the Alpha Experiment, nuclear measurements, and shipboard reactor studies performed during October 1949 at the Knolls Atomic Power Laboratory.
Date:
November 30, 1949
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Simplified Ionization Chamber
Construction and operation of a simplified ionization chamber.
Date:
April 20, 1949
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
United States Earthquakes, 1949
Report discussing earthquake activity in the United States during 1949. The report is broken down by regions and has sections for specific earthquakes.
Date:
1949
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library