The gemini program.
Gemini program including system and component description, orbital and rendezvous problems, extravehicular operations and controlled reentry
SPACE PROGRAM↗
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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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Relay system operations
In-orbit operational aspects of Relay I satellite and requirements for satellite command and for real time telemetry data reduction
DATA REDUCTION↗
Apollo mission
Operational aspects of proposed lunar surface exploration activities reviewed by astronaut in training
OPERATIONAL PROBLEM↗
Operational reliability assessment of the GEOS A spacecraft
Decision theory application to GEOS A spacecraft operational reliability assessment
DECISION THEORY↗
On solution structure of the radial heat problem with singular data
Initial value problem solutions to radial heat problem with Laplace operator and singular data
LAPLACE OPERATOR↗
Technology for large Rankine cycle space power systems.
Rankine cycle technology programs noting use of stainless steel bimetallic systems, boiler and condenser problems, turbine operation, etc
SPACECRAFT POWER SUPPLY↗
Preliminary spacecraft concept for an operational space environment monitoring system.
Preliminary spacecraft concept for real time operational space environment monitoring system
OPERATIONAL PROBLEM↗
Gemini results as related to the Apollo program
The Gemini Program was conceived to provide a space system that could furnish answers to many of the problems in operating manned vehicles in space. It was designed to build upon the experience gained from Project Mercury, and to extend and expand this fund of experience in support of the manned lunar landing program and other future manned space-flight programs. The purpose of this paper is to relate some of the results of the Gemini Program to the Apollo Program, and to discuss some of the contributions which have been made. The objectives of the Gemini Program applicable to Apollo are : (1) long-duration flight, (2) rendezvous and docking, (3) post-docking maneuver capability, (4) controlled reentry and landing, (5) flight- and groundcrew proficiency, and (6) extra vehicular capability. The achievement of these objectives has provided operational experience and confirmed much of the technology which will be utilized in future manned programs. These contributions will be discussed in three major areas : launch and flight operations, flight-crew operations and training, and technological development of subsystems and components. While there is obvious interrelation among the three elements, the grouping affords emphasis and order to the discussion.
structural integrity↗
New meteorological problems in aerospace design and operations
Atmospheric elements and properties pertinent to design and operations of Space Shuttle
Smith, O. E.↗
Survey of space sciences operations research
NASA past and future space programs, examining operations analysis problems associated with space missions planning
Turner, D. N.↗
Redundant data management system
Redundant data management system solves problem of operating redundant equipment in real time environment where failures are detected, isolated, and switched in simple manner. System consists of quadruply-redundant computer, input/output control units, and data buses. System inherently contains failure detection, isolation, and switching function.
Hall, J. R.↗
GENET note no. 1
The general features of the GENET system for simulating networks are described. A set of features is presented which are desirable for network simulations and which are expected to be achieved by this system. Among these features are: (1) two level network modeling; and (2) problem oriented operations. Several typical network systems are modeled in GENET framework to illustrate various of the features and to show its applicability.
Yeh, J. W.↗
A conceptual study of the rotor systems research aircraft
The analytical comparison of the two candidate Rotor Systems Research Aircraft (RSRA) configurations selected by the Government at the completion of Part 1 of the RSRA Conceptual Predesign Study is presented. The purpose of the comparison was to determine the relative suitability of both vehicles for the RSRA missions described in the Government Statement of Work, and to assess their versatility in the testing of new rotor concepts. The analytical comparison was performed primarily with regard to performance and stability and control. A weights, center-of-gravity, and inertia computation was performed for each iteration in the analysis process. The dynamics investigation was not concerned so much with a comparison of the two vehicles, but explored the dynamic problems attending operation of any RSRA operating with large rotor RPM and diameter ranges over large forward speed ranges. Several means of isolating in- and out-of-plane rotor vibrations were analyzed. An optimum isolation scheme was selected.
Source record↗
Sensitivity to emotional ill health
The services of mental specialists, such as psychologists, psychiatrists, or psychiatric social workers are required to assure maximum human performance in Government facilities. Contemporary mental health programming covers emotionally generated problems at operational sites to complete disclaiming of the existence of such difficulties among workers. Frequent taking of sick leave or annual leave when work seems demanding or when a promotion does not materialize, chronic or repeated tardiness, requests for frequent transfers, work over-loading, accidental injuries, and alcoholism are all forms of stress responses and indicate a need for emotional counselling.
Felton, J. S.↗
Infrared site testing of Mt. Lemmon and Catalina Observatory
The operation and problems involved with two sky noise meters installed in the Catalina Mountains near Tucson, Arizona are discussed. The instruments were installed at two different locations on Mt. Lemon. It was found that when photometric conditions prevailed, a positive correlation existed between the outputs of the two instruments. In particular, the strongdiurnal effect, in which the sky noise increases abruptly at sunrise and falls markedly after sunset, was reproduced by both instruments. Discrepancies in data recorded by the two instruments are analyzed and possible causes for the discrepancies are proposed.
Kuiper, G. P.↗
The use of hydrogen for aircraft propulsion in view of the fuel crisis.
In view of projected decreases in available petroleum fuels, interest has been generated in exploiting the potential of liquid hydrogen (LH2) as an aircraft fuel. Cost studies of LH2 production show it to be more expensive than presently used fuels. Regardless of cost considerations, LH2 is viewed as an attractive aircraft fuel because of the potential performance benefits it offers. Accompanying these benefits, however, are many new problems associated with aircraft design and operations; for example, problems related to fuel system design and the handling of LH2 during ground servicing. Some of the factors influencing LH2 fuel tank design, pumping, heat exchange, and flow regulation are discussed.
Weiss, S.↗
MSFC Skylab electrical power systems mission evaluation
The design, development, and operation of the Skylab electrical power system are discussed. The electrical systems for the airlock module of the orbital workshop and the Apollo telescope mount are described. Skylab is considered an integral laboratory, however, both cluster and module hardware distinct sections are included. Significant concept and requirement evolution, testing, and modifications resulting from tests are briefly summarized to aid in understanding the launch configuration description and the procedures and performance discussed for in-orbit operation. Specific problems encountered during Skylab orbital missions are analyzed.
Woosley, A. P.↗
A high-temperature wideband pressure transducer
The problem of operating a condenser microphone as a terminal element of a half wavelength transmission line was dealt with; the environment in which the microphone operates necessitates a 25 foot separation from its supporting electronics. A theoretical analysis of the microphone-cable system, substantiated by laboratory tests, provided criteria to optimize system gain.
Zuckerwar, A. J.↗