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  • 1
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    The Manned Maneuvering Unit - 'A nice flying machine' (1985)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: The need for untethered maneuvers in extravehicular space was recognized early in the NASA manned spaceflight program, leading to experiments during the Gemini flights. The Space Shuttle crews are now equipped with a Manned Maneuvering Unit (MMU) which employs 24 gaseous nitrogen thrusters to furnish six-degree-of-freedom mobility and is fitted with fully redundant electronics, electrical, and propulsion subsystems. The MMU thrusters are operated with translational and rotational hand controllers at the ends of the MMU arms.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: Aerospace America (ISSN 0740-722X); 23; 56-58
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Status report on Astronaut Maneuvering Equipment (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: The objectives of the Skylab experiment M509 were related to the development and the use of an Astronaut Maneuvering Unit (AMU). Through the actual orbital flight tests, the experiment has produced invaluable data to verify and extend previous ground-based research. AMU equipment and operating modes are considered along with flight plans, crew operations, and the maneuvering test plan. Attention is also given to orbital test results, a subjective evaluation, and actual and simulator flight assessment.
    Keywords: SPACE TRANSPORTATION
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Recent Shuttle EVA operations and experience (1985)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: This paper describes the hardware used and the experience gained during the Space Shuttle extravehicular activities (EVAs) or 'spacewalks' of 1984. Seven EVAs on four missions were conducted with objectives including hardware verification, satellite repair, hydrazine transfer, and satellite retrieval. The hardware used on these flights fall into two categories - general EVA hardware (e.g. the Manned Maneuvering Unit) and mission-unique hardware (e.g. apogee kick motor capture device, used to retrieve the WESTAR VI and PALAPA B-2 satellites). The successful completion of the mission objectives resulted in an increased knowledge of EVA operations and a broader base of Space Shuttle capabilities which are applicable to future operations.
    Keywords: SPACE TRANSPORTATION
    Type: SAE PAPER 851328
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    New tools for EVA operations (1987)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Effective extravehicular-activity (EVA) operations depend upon having the proper tools from simple wrenches to smart powered socket drives to powered adjustable foot restraints. The Space Shuttle carries a standard toolkit in the cargo bay for emergencies. Many special tools have been developed for the recent satellite repair missions; i.e., Solar Max, Westar/Palapa, and Leasat. Many more are being developed to maintain the Hubble Space Telescope on orbit for 15 years. The EVA tools developed and used in space to date are summarized and some of the new tools now in development are described herein. Finally, the requirements are given for several additional tools which may be needed in the future.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: SAE PAPER 871499
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Role of the manned maneuvering unit for the Space Station (1986)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: The performance specifications to be realized in the Manned Maneuvering Unit (MMU) for Space Station operations will be the culmination of design efforts which began during the Gemini project. The types of MMUs which have been built and tested over the past two decades are described, including handheld, jet shoe, and initial rigid backpack configurations. Efforts to enhance the control laws and human factors aspects of the Skylab MMU to meet long-duration, flexible use Space Station requirements are summarized, noting the successes and deficiencies with the Shuttle MMU. The design requirements which must be met to allow the Space Station MMU to be used to perform rescue, transportation, inspection, assembly, contingency, and programmatic missions are explored.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: SAE PAPER 861834
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    Skylab experiment M509: Astronaut maneuvering equipment - Orbital test results and future applications (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Keywords: BIOTECHNOLOGY
    Type: AAS PAPER 74-137 , Annual Meeting; Aug 20, 1974 - Aug 22, 1974; Los Angeles, CA
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    NASA TECHNICAL REPORTS
  • 7
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    Automatic control of the Skylab Astronaut Maneuvering Research Vehicle. (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The two automatic control modes of the Astronaut Maneuvering Research Vehicle (AMRV) are analyzed: the control moment gyro (CMG) and the rate gyro (RG). The AMRV is an autonomous maneuvering unit which translates and rotates the pilot by means of hand-controller input commands. The CMG normal operation, desaturation, and cage/lock dynamics are described in terms of a realistic AMRV mass property configuration. No propellant is used for normal operation in the CMG mode, and the maximum rotation rate is 5 deg/sec about each AMRV axis. The RG attitude maneuvering and limit cycle submode dynamic are described in terms of the same AMRV mass property configuration.
    Keywords: NAVIGATION
    Type: AIAA PAPER 73-857 , Guidance and Control Conference; Aug 20, 1973 - Aug 22, 1973; Key Biscayne, FL
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    NASA TECHNICAL REPORTS
  • 8
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    Manned maneuvering unit - A space platform support system (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-07-27
    Description: The assembly and evaluation of large space platforms in low earth orbit will become practical in the Shuttle era. Extravehicular crewmembers, equipped with manned maneuvering units (MMUs), will play a vital role in the construction and checkout of these platforms. The MMU is a propulsive backpack with mobility extending the crew's visual, mental, and manipulative capabilities beyond the cabin to on-the-spot assembly and maintenance operations. Previous MMU experience is reviewed, Shuttle MMU design features related to space platform support are described, and the use of the MMU for specific construction and assembly tasks is illustrated.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: AIAA PAPER 78-1663 , Conference on Large Space Platforms: Future Needs and Capabilities; Sept. 27-29, 1978; Los Angeles, CA
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    NASA TECHNICAL REPORTS
  • 9
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    EVA results of Shuttle Mission STS-37 (1992)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: The paper summarizes EVA results of the STS-37 mission that flew in April 1991, with emphasis on the unscheduled EVA to free the Compton GRO antenna. The EVA Development Flight Experiment (EDFE) objectives and equipment description are also presented. The EDFE consisted of three experiments conducted during STS-37 to evaluate both designs of crew translation equipment and loads imparted by crew members while performing typical EVA work site tasks for Space Station Freedom. The experiments were used to evaluate static and dynamic loads and ease of operation of four separate translation systems operating on a fixed track. Various measures of performance of the crew equipment and translation aids are discussed. The rates and accelerations experienced during translation aided by the manipulator foot restraint and remote manipulator system were found to be comfortable.
    Keywords: SPACE TRANSPORTATION
    Type: SAE PAPER 921339 , SAE, International Conference on Environmental Systems; Jul 13, 1992 - Jul 16, 1992; Seattle, WA; United States|; 15 p.
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    NASA TECHNICAL REPORTS
  • 10
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    EVA maneuvering unit comparison. (1969)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Unstabilized astronaut, hand-held and integrated life support EVA maneuvering units tested in gimbaled six degree of freedom servo driven moving base simulator
    Keywords: BIOTECHNOLOGY
    Type: AAS PAPER 69-516 , AMERICAN ASTRONAUTICAL SOCIETY AND OPERATIONS RESEARCH SOCIETY OF AMERICA, JOINT NATIONAL MEETING; Jun 17, 1969 - Jun 20, 1969; DENVER, COLO.
    Format: text
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    NASA TECHNICAL REPORTS
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