Simplified processing of star tracker commands for satellite attitude control.
Gimballed star trackers application to satellite attitude control for simplified signal processing
Showman, R. D.↗
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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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Studies and analyses of automatic command control communications and applications of time reference systems for automatic flight management Final report
Data links and time reference systems in automatic navigation and flight management
Boardman, C. H.↗
Simulation of the Apollo command module aerodynamics at high altitudes.
Aerodynamic measurements on Apollo CM model at hypersonic flow simulating earth orbital reentry trajectory
Boylan, D. E.↗
Training manual ACE-S/C command monitor unit
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Apollo support equipment. Digital test command system models C14-264 through C14-268 - Maintenance handbook
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Preliminary data for plume definition of the R4D engine for the Command Service Module Reaction Control System
Exhaust plume characteristics for R4D engine used by CSM reaction control system
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Apollo MCC/MSFN Mission Configuration Command Communication Telemetry Tracking
Manned Space Flight Network and Mission Control Center configurations for main line Apollo missions
Clark, E. H.↗
An embodiment of some vertebrate command and control principles
Reticular formation of central nervous system in vertebrates described as behavior controlling circuit of interconnected modules, proposing hybrid computer method for operational scheme
Blum, J.↗
A study of solid propellant rocket motor command termination by water injection
Optimal water quench of solid rockets using injection normal to propellant surface
Gerber, W.↗
A frequency division multiplex technique for transmitting commands
Reliable random access multiplexer is controlled and operated over two twisted-pair telephone lines at distances of 5.6 to 8.0 km with control signals of less than 10 volts rms. Technique adapts to any process or environmental control system where data source is necessary.
Brey, H.↗
MSC Apollo 13 Investigation Team. Panel 6 - Related Systems Evaluation. Volume 3 - Command and Service Module
Analysis of spacecraft components and systems with potential for failures similar to Apollo 13 flight emergency
Source record↗
Operations and functions of the MINKEY rendezvous computer program in the Apollo command module computer
Minkey rendezvous computer program in Apollo 15 CSM aiding guidance, navigation and control system functions
Copps, S. L.↗
An airborne simulator investigation of the accuracy of an optical track command missile guidance system
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Douvillier, J. J., Jr.↗
Flight, analog-simulator, and analytical studies of an automatically controlled interceptor which uses a bank-angle-error computer for lateral commands
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Brissenden, R. F.↗
Simulator investigation of command reaction controls
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Holleman, E. C.↗
Apollo experience report: Command and service module environmental control system
A comprehensive review is presented of the design philosophy of the Apollo environmental control system together with the development history of the total system and of selected components within the system. In particular, discussions are presented relative to the development history and to the problems associated with the equipment cooling coldplates, the evaporator and its electronic control system, and the space radiator system used for rejection of the spacecraft thermal loads. Apollo flight experience and operational difficulties associated with the spacecraft water system and the waste management system are discussed in detail to provide definition of the problem and the corrective action taken when applicable.
Samonski, F. H., Jr.↗
The aerothermodynamic environment of the Apollo command module during superorbital entry
Aerothermodynamic measurements were obtained on two Apollo spacecraft during atmospheric entry at near-lunar-return velocities. Histories of measured pressure and of convective and radiative heating rates are compared with theoretical predictions and with wind-tunnel results. The comparisons show that pressures measured in the wind tunnel correspond to those measured in the flight environment of the entry face. Unexplained low pressures were obtained on the conical section. Measured radiative heating rates agree with predictions calculated for both visible and infrared radiation. Good agreement was found between convective heating rates measured in flight and predictions obtained by using cold wall theory adjusted for mass injection from the ablator.
Lee, D. B.↗
Radiative heating to the Apollo command module: Engineering prediction and flight measurement
The theory and engineering techniques used for the prediction of the Apollo entry thermal-radiation environment are presented. The radiation predictions are shown to be in satisfactory agreement with the Apollo 4, FIRE 1, and FIRE 2 flight radiometer data. The characteristics and performance of the Apollo flight radiometer and ablator-mounted configuration were determined through arc jet simulation tests.
Ried, R. C., Jr.↗