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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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Neutron spectra measurement in liquid hydrogen, water cooled fast neutron source, thermal neutron measurements, and liquid hydrogen facility checkout using nitrogen
Space communication information transfer systems parameters for checkout engineers
Timing of checkout in system with constant failure rate
Computer program analyzes the designs of critical systems that will either prove the design is free of single-point failures or detect each member of the population of single-point failures inherent in a system design. This program should find application in the checkout of redundant circuits and digital systems.
Computer based data conditioning and display technique detects incipient failure in servo system testing, for use in prelaunch checkout of complex nonlinear servomechanisms. These phase plane displays enable identification of, on line, unusual or abnormal servo responses which can be displayed compactly in the time domain on a cathode ray tube.
Performance of ultrasonic leak detectors for cryogenics and gases, and testing of their applicability to Saturn transfer and checkout operations
Test plan for checkout and qualification of Apollo manned space flight network systems
Inspector role in prelaunch checkout of space system hardware
Rocket engine turbopump assembly test capability design, facilities, cryogenic systems, control requirements, computer simulation, activation and checkout
M-1 Engine Thrust Chamber Assembly test facilities and analog computor simulation during checkout
Molded plastic preform facilitates the fabrication of small lots of welded cordwood circuits. The preforms retain the components during welding and electrical checkout and facilitate encapsulation of the welded module when used with a conventional potting shell.
Systems safety checklists for use in preparation and review of launch, operating, test, checkout, maintenance, handling, calibration, and ordnance procedures for space vehicles
Suggested revisions in logic models used for discrete network simulation of Saturn 5 checkout
Equipment, procedures, and methods used in Brayton cycle demonstrator checkout tests
Engineering design concepts for airborne range and orbit determination transponder station, and test equipment for vehicle and transponder checkout
Nondestructive testing techniques for in-space use, discussing leak detection and repair and fuel and pressure line checkout
Saturn 1 Instrument Unit electric networks computer simulation written in ATOLL for checkout computer to control network operations
PCM synchronizer testing providing processing and print-out for Apollo checkout equipment