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Combined High And Low Thrust Propulsion For Fast Piloted Mars Missions
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781725573055 Total Pages :30 pages Book Rating :4.5/5 (73 download)
Book Synopsis Combined High and Low Thrust Propulsion for Fast Piloted Mars Missions by : National Aeronautics and Space Administration (NASA)
Download or read book Combined High and Low Thrust Propulsion for Fast Piloted Mars Missions written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-16 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mission benefits of using both high thrust nuclear thermal propulsion (NTP) and low acceleration, high specific impulse nuclear electric propulsion (NEP) to reduce piloted trip times to Mars with reasonable initial mass are assessed. Recent updates in mission design, such as the Earth fly-by return, are assessed for their impact on previous studies. In addition, the Synthesis Commission split mission to Mars in 2014 is also assessed using combined propulsion. Results show an 80 to 100 day reduction in trip time over the reference NTP or NEP systems and missions, with comparable or reduced vehicle initial masses. The impacts of the mission and system analyses upon technology planning and design are discussed. Gilland, James H. and Oleson, Steven R. Unspecified Center NASA-CR-190788, E-7423, NAS 1.26:190788 RTOP 539-72-00...
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hazards Due to Comets and Asteroids by : Tom Gehrels
Download or read book Hazards Due to Comets and Asteroids written by Tom Gehrels and published by University of Arizona Press. This book was released on 2021-11-30 with total page 1317 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1993, the U.S. Department of Defense declassified information dealing with frequent explosions in the upper atmosphere caused by meteoric impact. It is estimated that impacts have occurred of a magnitude equivalent to the atomic bomb detonated at Hiroshima. Not all such space voyagers meet their end in the atmosphere, however; huge craters attest to the bombardment of earth over millions of years, and a major impact may have resulted in the extinction of dinosaurs. An impact in Siberia near the beginning of this century proves that such events are not confined to geologic time. Hazards Due to Comets and Asteroids marks a significant step in the attempt to come to grips with the threats posed by such phenomena. It brings together more than one hundred scientists from around the world, who draw on observational and theoretical research to focus on the technical problems related to all aspects of dealing with these hazards: searching for and identifying hazardous comets and asteroids; describing their statistics and characteristics; intercepting and altering the orbits of dangerous objects; and applying existent technologies—rocket boosters, rendezvous and soft-landing techniques, instrumentation—to such missions. The book considers defensive options for diverting or disrupting an approaching body, including solar sails, kinetic-energy impacts, nuclear explosives, robotic mass drivers, and various propulsion systems. A cataclysmic impact posing a threat to life on Earth is a possibility that tomorrow's technology is capable of averting. This book examines in depth the reality of the threat and proposes practical measures that can be initiated now should we ever need to deal with it.
Book Synopsis Monthly Catalog of United States Government Publications by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1993 with total page 1192 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Book Synopsis Monthly Catalogue, United States Public Documents by :
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1993 with total page 1194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fast Interplanetary Missions with Low-thrust Propulsion Systems by : W. E. Moeckel
Download or read book Fast Interplanetary Missions with Low-thrust Propulsion Systems written by W. E. Moeckel and published by . This book was released on 1961 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A simple family of indirect-transfer trajectories between circular orbits is used to evaluate the mass ratio required to complete round-trip interplanetary missions using low-thrust propulsion systems. These trajectories, although not optimum, yielded very substantial reductions in total round-trip time for Mars missions with moderate increases in initial weight. For a powerplant specific weight [alpha] of 10 pounds per kilowatt of jet power, trip times were reduced from 1200 to 600 days, for a typical manned mission, with an initial weight increase of a factor of two. Comparison with a nuclear rocket with 1000-second specific impulse indicated that the electric-propulsion system required less initial weight for trip times as low as 550 days with [alpha]=10 and as low at 400 days with [alpha]=5 pounds per kilowatt. Further weight reductions would be expected with more nearly optimum trajectories.
Book Synopsis High Power MPD Thruster Development at the NASA Glenn Research Center by : Michael R. LaPointe
Download or read book High Power MPD Thruster Development at the NASA Glenn Research Center written by Michael R. LaPointe and published by . This book was released on 2001 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit: 02-4100 - 02-4149 by :
Download or read book 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit: 02-4100 - 02-4149 written by and published by . This book was released on 2002 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nuclear Technologies for Space Exploration by : American Nuclear Society. Eastern Idaho Section
Download or read book Nuclear Technologies for Space Exploration written by American Nuclear Society. Eastern Idaho Section and published by . This book was released on 1992 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit July 20-23, 2003, Huntsville, Alabama: 03-5100 - 03-5149 by :
Download or read book 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit July 20-23, 2003, Huntsville, Alabama: 03-5100 - 03-5149 written by and published by . This book was released on 2003 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Report written by and published by . This book was released on 1960 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analytical Study of Soft Landings on Gas-filled Bags by : Jack B. Esgar
Download or read book Analytical Study of Soft Landings on Gas-filled Bags written by Jack B. Esgar and published by . This book was released on 1960 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transportation Beyond 2000: Technologies Needed for Engineering Design by :
Download or read book Transportation Beyond 2000: Technologies Needed for Engineering Design written by and published by . This book was released on 1996 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Space Technology and Applications International Forum - 2000 by : Mohamed S. El-Genk
Download or read book Space Technology and Applications International Forum - 2000 written by Mohamed S. El-Genk and published by American Institute of Physics. This book was released on 2000-01-27 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings document the opportunities for space science onboard the international space station (ISS), currently under construction by an international consortium. These proceedings include the latest on the construction of and payload operations on the ISS; human physiology in space; fundamental physics; engineering research and technology development; thermal control technologies for future spacecraft; propulsion technology for interstellar precursor missions; breakthrough propulsion physics; next generation commercial/civil space transportation and reusable launch systems technology; spaceport development; potential manned and unmanned space missions; and advances in energy conversion technologies. STAIF-2000 is co-sponsored by NASA Headquarters and Field Centers, DOE, and The Boeing Company, in cooperation with major professional societies. Government aerospace industry and universities exhibit and present papers.
Book Synopsis Humans to Mars by : David S. F. Portree
Download or read book Humans to Mars written by David S. F. Portree and published by . This book was released on 2001 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. Senate. Committee on Aeronautical and Space Sciences Publisher : ISBN 13 : Total Pages :1800 pages Book Rating :4.3/5 (91 download)
Book Synopsis Hearings by : United States. Congress. Senate. Committee on Aeronautical and Space Sciences
Download or read book Hearings written by United States. Congress. Senate. Committee on Aeronautical and Space Sciences and published by . This book was released on 1965 with total page 1800 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. Senate. Committee on Aeronautical and Space Sciences Publisher : ISBN 13 : Total Pages :1434 pages Book Rating :4.:/5 (51 download)
Book Synopsis National Communications Satellite Programs by : United States. Congress. Senate. Committee on Aeronautical and Space Sciences
Download or read book National Communications Satellite Programs written by United States. Congress. Senate. Committee on Aeronautical and Space Sciences and published by . This book was released on 1966 with total page 1434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
