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  • Other Sources  (7)
  • Man/System Technology and Life Support
  • 1970-1974  (5)
  • 1955-1959  (2)
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  • Other Sources  (7)
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  • 1
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    The Role of the Onboard Operator in Automated Rapid Rail Transit (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-08-13
    Description: A study of automatic train control systems used in rail rapid transit systems with various levels of automation revealed: full automation, now possible, does not preclude the onboard operator as a safety element. Elimination of the operator necessitates extremely high levels of guideway protection. Where such protection is impossible operator viglance must be maintained through assignment of non-trivial tasks. The. functions most difficult to automate are right-of-way surveillance and door operation. In new systems automation level should be based on local transportation needs derived from system studies and verified through simulation.
    Keywords: Man/System Technology and Life Support
    Type: AIAA Paper 74-1299 , Life Sciences and Systems; Nov 06, 1974 - Nov 08, 1974; Arlington, TX; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    The Effects of Longitudinal Control-System Dynamics on Pilot Opinion and Response Characteristics as Determined from Flight Tests and from Ground Simulator Studies (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: The results of a fixed-base simulator study of the effects of variable longitudinal control-system dynamics on pilot opinion are presented and compared with flight-test data. The control-system variables considered in this investigation included stick force per g, time constant, and dead-band, or stabilizer breakout force. In general, the fairly good correlation between flight and simulator results for two pilots demonstrates the validity of fixed-base simulator studies which are designed to complement and supplement flight studies and serve as a guide in control-system preliminary design. However, in the investigation of certain problem areas (e.g., sensitive control-system configurations associated with pilot- induced oscillations in flight), fixed-base simulator results did not predict the occurrence of an instability, although the pilots noted the system was extremely sensitive and unsatisfactory. If it is desired to predict pilot-induced-oscillation tendencies, tests in moving-base simulators may be required. It was found possible to represent the human pilot by a linear pilot analog for the tracking task assumed in the present study. The criterion used to adjust the pilot analog was the root-mean-square tracking error of one of the human pilots on the fixed-base simulator. Matching the tracking error of the pilot analog to that of the human pilot gave an approximation to the variation of human-pilot behavior over a range of control-system dynamics. Results of the pilot-analog study indicated that both for optimized control-system dynamics (for poor airplane dynamics) and for a region of good airplane dynamics, the pilot response characteristics are approximately the same.
    Keywords: Man/System Technology and Life Support
    Type: NASA-MEMO-10-1-58A
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Moonwalk Series (1970)
    In:  Other Sources
    Details
    Publication Date: 2019-07-10
    Description: This episode (second in a four-part series) shows the procedures Apollo operators used in order to make sure the astronauts would be able to survive in outer space, namely testing man's limitations and preferences (atmospheric pressure, temperature range, breathing gas, acceleration protection) and adapting the Columbia Module to account for these limitations. This show explains the function of the different stages of the moon rocket, i.e., how the stages separate and what becomes of them. We pick up the moonwalk story by looking back at some of the old classic space films that were a Hollywood perspective on future space travel.
    Keywords: Man/System Technology and Life Support
    Type: NONP-NASA-VT-2001095020
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Functional Requirements for Onboard Management of Space Shuttle Consumables (1973)
    In:  CASI
    Details
    Publication Date: 2019-07-10
    Description: This report documents the results of the study "Functional Requirements for Onboard Management of Space Shuttle Consumables." The study was conducted for the Mission Planning and Analysis Division of the NASA Lyndon B. Johnson Space Center, Houston, Texas, between 3 July 1972 and 16 November 1973. The overall study program objective was two-fold. The first objective was to define a generalized consumable management concept which is applicable to advanced spacecraft. The second objective was to develop a specific consumables management concept for the Space Shuttle vehicle and to generate the functional requirements for the onboard portion of that concept. Consumables management is the process of controlling or influencing the usage of expendable materials involved in vehicle subsystem operation. The report consists of two volumes. Volume I presents a description of the study activities related to general approaches for developing consumable management, concepts for advanced spacecraft applications, and functional requirements for a Shuttle consumables management concept. Volume II presents a detailed description of the onboard consumables management concept proposed for use on the Space Shuttle.
    Keywords: Man/System Technology and Life Support
    Type: TRW-22104-H002-R0-00-Vol-2
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Phase 111A Crew Interface Specifications Development for Inflight Maintenance and Stowage Functions (1973)
    In:  CASI
    Details
    Publication Date: 2019-07-10
    Description: This report presents the findings and data products developed during the Phase IIIA Crew Interface Specification Study for Inflight Maintenance and Stowage Functions, performed by General Electric for the NASA, Johnson Space Center with a set of documentation that can be used as definitive guidelines to improve the present process of defining, controlling and managing flight crew interface requirements that are related to inflight maintenance (including assembly and servicing) and stowage functions. During the Phase IIIA contract period, the following data products were developed: 1) Projected NASA Crew Procedures/Flight Data File Development Process. 2) Inflight Maintenance Management Process Description. 3) Preliminary Draft, General Specification, Inflight Maintenance Management Requirements. 4) Inflight Maintenance Operational Process Description. 5) Preliminary Draft, General Specification, Inflight Maintenance Task and Support Requirements Analysis. 6) Suggested IFM Data Processing Reports for Logistics Management The above Inflight Maintenance data products have been developed during the Phase IIIA study after review of Space Shuttle Program Documentation, including the Level II Integrated Logistics Requirements and other DOD and NASA data relative to Payloads Accommodations and Satellite On-Orbit Servicing. These Inflight Maintenance data products were developed to be in consonance with Space Shuttle Program technical and management requirements.
    Keywords: Man/System Technology and Life Support
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    Skylab: Program Description (1971)
    In:  CASI
    Details
    Publication Date: 2019-08-27
    Description: In 1973 three Americans will embark on the first of a series of Earth orbiting missions using Skylab, the first United States vehicle created specifically to enable man to live and work in space for extended periods. Sky lab is a program dedicated to the use of space and its unique environment and vantage point to increase our knowledge and understanding of the Earth's importance to man's well-being and man's influence on Earth's ecology. Sky lab will also be a major step in manned space flight. Habitation by the first crew will double our previous man-in-space duration (Gemini VII) and the second visit will redouble that duration. It will, in effect, create a bridge between the development flights of the 60s and the long duration operational space flights of the future. To accomplish its mission, Sky lab will be placed in Earth orbit and will be visited and inhabited by three different crews during an eight-month period. While successfully inhabiting and operating the vehicle for one- and two-month continuous periods, these crews will obtain data in areas pertinent to the man/Earth relationship and to long duration space flight. Data will be acquired by Skylab primarily through the conduct of "experiments." Four categories of investigation are planned. These are summarized in the following paragraphs.
    Keywords: Man/System Technology and Life Support
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    A Pilot Opinion Study of Lateral Control Requirements for Fighter-Type Aircraft (1959)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: As part of a continuing NASA program of research on airplane handling qualities, a pilot opinion investigation has been made on the lateral control requirements of fighter aircraft flying in their combat speed range. The investigation was carried out using a stationary flight simulator and a moving flight simulator, and the flight simulator results were supplemented by research tests in actual flight. The flight simulator study was based on the presumption that the pilot rates the roll control of an airplane primarily on a single-degree-of-freedom basis; that is, control of angle of roll about the aircraft body axis being of first importance. From the assumption of a single degree of freedom system it follows that there are two fundamental parameters which govern the airplane roll response, namely the roll damping expressed as a time constant and roll control power in terms of roll acceleration. The simulator study resulted in a criterion in terms of these two parameters which defines satisfactory, unsatisfactory, and unacceptable roll performance from a pilot opinion standpoint. The moving simulator results were substantiated by the in-flight investigation. The derived criterion was compared with the roll performance criterion based upon wing tip helix angle and also with other roll performance concepts which currently influence the roll performance design of military fighter aircraft flying in their combat speed range.
    Keywords: Man/System Technology and Life Support
    Type: NASA-MEMO-1-29-59A
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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