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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Clamp holds irregularly shaped pieces in lathe chuck without damage and eliminates excessive time in selecting optimum mounting. Interchangeable jaws ride in standard jaw slots but swivel so that the jaw face bears evenly against the workpiece regardless of contour. The jaws can be used on both engine and turret lathes.
Internal surfaces of the glass component of a vacuum system are exposed to cesium in gaseous form to reduce helium permeation. The cesium gas is derived from decomposition of cesium nitrate through heating. Several minutes of exposure of the internal surfaces of the glass vessel are sufficient to complete the treatment.
Triangular aluminum tool kit, filled with polyurethane is constructed to receive various tools and hold them in a snug but quick-release fit as an aid to heavily gloved workers. The kit is designed to allow mounting within easily accessable reach and to provide protection of the tools during storage.
General analytic treatment of magnetic braking coils and braking action with numerical results computed for specific 400 foot drop facility
Electric contact switching of low level current and voltage
The Saturn S-II stage and the Apollo spacecraft will include in their design and construction various pressurized tubing systems that will encounter service temperatures of 280° F to -423° F. Design engineering and reliability requirements and weight restrict ions have dictated new concepts to assure leak-tight joints for rocket engine fuel lines, pressurization systems, utility systems, and hydraulic systems. An investigation was initiated at North American Aviation, Inc., Space and Information Systems Division, utilizing the in-place automatically controlled miniaturized fusion-welding equipment originally developed by the Los Angeles Division of NAA and modified to meet the needs of Apollo and Saturn welded tubular systems. The objective was to make circumferential flanged weld joints in any position in 304L stainless for Saturn S-II and sleeve-type joints in 304L for Apollo. Inconel X, commercially pure titanium, 5052-0 aluminum, and 6061 T6 aluminum were also tested experimentally. Extensive environmental, static, and dynamic testing programs were conducted to determine the as-welded mechanical properties, design allowables, and reliability for the tube joints. This paper discusses both the experimental and production phases. Subsequently, the new tube welding process was approved and incorporated into manufacturing fabrication methods for tube joining.
Plant feeding by air culture method for closed system
Annotated bibliography on aerospace research and technology
Algorithm for mechanized Russian language morphological analysis and translation on digital computer
Computer program for solving squeeze film gas bearing problems
Low temperature notch toughness of cryoformed pressure vessels using 301-type stainless steel modifications
Design and testing of majority logic redundancy for spaceborne and GSE digital systems
Interplanetary trajectory computer program in Fortran for guidance and navigation studies
Data formats and functional flow charts for interplanetary trajectory computation program
Planetary exploration optimization problems using swing-by trajectories and capture orbits
Component reliability, and failure-free systems for electrochemical cell, magnetic devices, and mercury cell integrator
Vacuum components for field emission microscope with molecular beam apparatus for surface physics studies
Encapsulated contaminants effects on spacecraft sterilization requirements