Fast Interplanetary Missions With Low Thrust Propulsion Systems

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Fast Interplanetary Missions with Low-thrust Propulsion Systems

Author : W. E. Moeckel
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (31 download)

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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.

NASA Technical Report

Author :
Publisher :
ISBN 13 :
Total Pages : 798 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis NASA Technical Report by :

Download or read book NASA Technical Report written by and published by . This book was released on 1963 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Interplanetary Mission Analysis and Design

Author : Stephen Kemble
Publisher : Springer Science & Business Media
ISBN 13 : 3540376453
Total Pages : 511 pages
Book Rating : 4.5/5 (43 download)

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Book Synopsis Interplanetary Mission Analysis and Design by : Stephen Kemble

Download or read book Interplanetary Mission Analysis and Design written by Stephen Kemble and published by Springer Science & Business Media. This book was released on 2006-09-01 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present impetus to drive down the overall cost of space missions is leading to ever-increasing demands for more efficient design techniques over a wide range of interplanetary missions, and the methods now being utilised to do this are described in this timely and authoritative work.

Combined High and Low Thrust Propulsion for Fast Piloted Mars Missions

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)

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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...

Fast Interplanetary Missions with Low-thrust Propulsion Systems

Author : W. E. Moeckel
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (317 download)

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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 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Analytical Study of Soft Landings on Gas-filled Bags

Author : Jack B. Esgar
Publisher :
ISBN 13 :
Total Pages : 732 pages
Book Rating : 4.F/5 ( download)

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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:

A Method of Approximating Propellant Requirements of Low-thrust Trajectories

Author : Charles L. Zola
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis A Method of Approximating Propellant Requirements of Low-thrust Trajectories by : Charles L. Zola

Download or read book A Method of Approximating Propellant Requirements of Low-thrust Trajectories written by Charles L. Zola and published by . This book was released on 1966 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Space Flight and Re-Entry Trajectories

Author : Paul A. Libby
Publisher : Springer Science & Business Media
ISBN 13 : 3709154707
Total Pages : 267 pages
Book Rating : 4.7/5 (91 download)

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Book Synopsis Space Flight and Re-Entry Trajectories by : Paul A. Libby

Download or read book Space Flight and Re-Entry Trajectories written by Paul A. Libby and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this and a following issue (Vol. VIII, 1962, Fasc. 2-3) of "Astronautica Acta" there will appear the papers presented at the first international symposium sponsored by the International Academy of Astronautics of the International Astronautical Federation. The theme of the meeting was "Space Flight and Re-Entry Trajectories." It was held at Louveciennes outside of Paris on June 19-21, 1961. Sixteen papers by authors from nine countries were presented; attendees numbered from 80 to 100. The organizing committee for the symposium was as follows: Prof. PAUL A. LIBBY, Polytechnic Institute of Brooklyn, U.S.A., Chairman; Prof. LuiGI BROGLIO, University of Rome, Italy; Prof. B. FRAEIJS DE VEUBEKE, University of Liege, Belgium; Dr. D. G. KING-HELE, Royal Aircraft Establishment, Farnborough, Rants, United Kingdom; Prof. J. M. J. KooY, Royal Military School, Breda, Netherlands; Prof. JEAN KovALEVSKY, Bureau des Longitudes, Paris, France; Prof. RuDOLF PESEK, Academy of Sciences, Prague, Czechoslovakia. The detailed arrangements for the meeting were made in a most satisfactory manner by Dr. FRANK J. MALINA, Deputy Director of IAA and Mr. A. R. WEILLER, Acting Secretary of IAA. Prof. THEODORE VON KARMAN, Director of IAA, in his remarks closing the symposium indicated his satisfaction at the interest being shown in "the science of the future." The papers which follow will make a permanent contribution to the literature of this science.

Monthly Catalog of United States Government Publications, Cumulative Index

Author : United States. Superintendent of Documents
Publisher :
ISBN 13 :
Total Pages : 1284 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Monthly Catalog of United States Government Publications, Cumulative Index by : United States. Superintendent of Documents

Download or read book Monthly Catalog of United States Government Publications, Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1980 with total page 1284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Monthly Catalog of United States Government Publications

Author :
Publisher :
ISBN 13 :
Total Pages : 1284 pages
Book Rating : 4.3/5 ( download)

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Book Synopsis Monthly Catalog of United States Government Publications by :

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Technical Translation

Author : United States. National Aeronautics and Space Administration
Publisher :
ISBN 13 :
Total Pages : 602 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis NASA Technical Translation by : United States. National Aeronautics and Space Administration

Download or read book NASA Technical Translation written by United States. National Aeronautics and Space Administration and published by . This book was released on 1969 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Technical Report - Jet Propulsion Laboratory, California Institute of Technology

Author : Jet Propulsion Laboratory (U.S.)
Publisher :
ISBN 13 :
Total Pages : 726 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Technical Report - Jet Propulsion Laboratory, California Institute of Technology by : Jet Propulsion Laboratory (U.S.)

Download or read book Technical Report - Jet Propulsion Laboratory, California Institute of Technology written by Jet Propulsion Laboratory (U.S.) and published by . This book was released on 1963 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Technical Note

Author :
Publisher :
ISBN 13 :
Total Pages : 460 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis NASA Technical Note by :

Download or read book NASA Technical Note written by and published by . This book was released on 1966 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Electric Propulsion Development

Author : Ernst Stuhlinger
Publisher : Elsevier
ISBN 13 : 0323163386
Total Pages : 763 pages
Book Rating : 4.3/5 (231 download)

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Book Synopsis Electric Propulsion Development by : Ernst Stuhlinger

Download or read book Electric Propulsion Development written by Ernst Stuhlinger and published by Elsevier. This book was released on 1963-01-01 with total page 763 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in Astronautics and Aeronautics, Volume 9: Electric Propulsion Development covers the proceedings of the Second Electric Propulsion Conference of the American Rocker Society, held in Berkeley, California on March 14-16, 1962. The conference focuses on the existing problems in electric propulsion and their possible solutions. This book is organized into four sections encompassing 35 chapters. The first section deals with the thermodynamics of arcs; the problems of heat and momentum transfer; the chemical processes within arcs; the arc system materials; and the arc jet design problems. The second section considers the problems of ion systems, the various ion sources, and the neutralization of ion beams. This section also looks into the basic ionization processes, the production and charging of heavy particles, the corrosive properties of cesium, and the ion-optical designs. The third section describes various plasma systems, including helical transmission lines, pulsed pinch accelerators, coaxial systems, and j x B accelerators. The theoretical analyses of these systems are briefly examined. The fourth section includes papers on flight testing of electric propulsion models, on vertical rocket probes, and on satellites, This section also discusses some advanced concepts in electric propulsion, such as air scooping during ascent through the atmosphere, systems design and optimization, and planetary and interplanetary missions. This book is of great value to physicists, space engineers and designers, as well as researchers in the fields of astronautics and aeronautics.

Index of N A S A Technical Publications

Author : United States. National Aeronautics and Space Administration
Publisher :
ISBN 13 :
Total Pages : 448 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Index of N A S A Technical Publications by : United States. National Aeronautics and Space Administration

Download or read book Index of N A S A Technical Publications written by United States. National Aeronautics and Space Administration and published by . This book was released on 1960 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Selected Listing of NASA Scientific and Technical Reports for ...

Author :
Publisher :
ISBN 13 :
Total Pages : 450 pages
Book Rating : 4.X/5 (4 download)

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Book Synopsis A Selected Listing of NASA Scientific and Technical Reports for ... by :

Download or read book A Selected Listing of NASA Scientific and Technical Reports for ... written by and published by . This book was released on 1960 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Theoretical Performance of Electrostatic Thrustors with Analytic Space-charge Flows

Author : William R. Mickelsen
Publisher :
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Theoretical Performance of Electrostatic Thrustors with Analytic Space-charge Flows by : William R. Mickelsen

Download or read book Theoretical Performance of Electrostatic Thrustors with Analytic Space-charge Flows written by William R. Mickelsen and published by . This book was released on 1963 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theoretical performance parameters are derived for electrostatic thrustors with ion accelerators that have analytic space-charge-flow geometries. The performance parameters are exact, are in closed form, are directly related to mission-analysis and to powerplant-design parameters, and apply to both contact-ionization and electron-bombardment thrustors. The space-charge-flow geometries analyzed are unshielded plane diode, shielded plane diode with rectangular or circular ion beams, divergent or convergent flow between coaxial cylinders or concentric spheres, and circular flow. The analyses indicate that the divergent-cylindrical, divergent-spherical, and circular-flow geometries have the most promise for high-performance contact-ionization thrustors.