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Author : John S. MacKay
Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (31 download)
Download or read book Manned Mars Landing Missions Using Electric Propulsion written by John S. MacKay and published by . This book was released on 1966 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James E. Oberg
Publisher : Stackpole Books
ISBN 13 : 0811766624
Total Pages : 222 pages
Book Rating : 4.8/5 (117 download)
Download or read book Mission to Mars written by James E. Oberg and published by Stackpole Books. This book was released on 2017-09-15 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: How feasible is a manned Mars flight? How soon will it be possible? How long will it take? What kind of spacecraft will make the journey? What kind of data will be collected? What are the advantages of a manned flight over an unmanned? Mission to Mars discusses these questions and more in this serious, documented treatment of the not-too-distant manned expedition to Mars. The shuttle has proved successful and an enthusiastic boost to American interest in space. But while many laypeople wonder “what’s next,” scientists are planning what they feel is the next logical step. Drawing on the vast amount of data sent back by Viking orbiters and probes, and existing developments in propulsion and space technology, space experts all over have been speculating, analyzing, and exchanging ideas relative to the long-awaited mission to Mars. Other factors, critical to an intelligent discussion of such an undertaking are included here: spaceship design and assembly, propulsion systems, navigation principles, life support systems, selecting a landing site, scientific activities on Mars, cost factors, political and social issues.
Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781730791970
Total Pages : 70 pages
Book Rating : 4.7/5 (919 download)
Download or read book Manned Mars Explorer Project: Guidelines for a Manned Mission to the Vicinity of Mars Using Phobos as a Staging Outpost; Schematic Vehicle Designs C written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-11-03 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Manned Mars Explorer (MME) project responds to the fundamental problems of sending human beings to Mars in a mission scenario and schematic vehicle designs. The mission scenario targets an opposition class Venus inbound swingby for its trajectory with concentration on Phobos and/or Deimos as a staging base for initial and future Mars vicinity operations. Optional vehicles are presented as a comparison using nuclear electric power/propulsion technology. A Manned Planetary Vehicle and Crew Command Vehicle are used to accomplish the targeted mission. The Manned Planetary Vehicle utilizes the mature technology of chemical propulsion combined with an advanced aerobrake, tether and pressurized environment system. The Crew Command Vehicle is the workhorse of the mission performing many different functions including a manned Mars landing, and Phobos rendezvous. Nolan, Sean and Neubek, Deb and Baxmann, C. J. Unspecified Center...
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722627072
Total Pages : 70 pages
Book Rating : 4.6/5 (27 download)
Download or read book Manned Mars Explorer Project written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-08 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Manned Mars Explorer (MME) project responds to the fundamental problems of sending human beings to Mars in a mission scenario and schematic vehicle designs. The mission scenario targets an opposition class Venus inbound swingby for its trajectory with concentration on Phobos and/or Deimos as a staging base for initial and future Mars vicinity operations. Optional vehicles are presented as a comparison using nuclear electric power/propulsion technology. A Manned Planetary Vehicle and Crew Command Vehicle are used to accomplish the targeted mission. The Manned Planetary Vehicle utilizes the mature technology of chemical propulsion combined with an advanced aerobrake, tether and pressurized environment system. The Crew Command Vehicle is the workhorse of the mission performing many different functions including a manned Mars landing, and Phobos rendezvous. Nolan, Sean and Neubek, Deb and Baxmann, C. J. Unspecified Center...
Author : Donald Joseph Blersch
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.:/5 (21 download)
Download or read book An Analysis of Trajectory Options for Manned Mars Missions Utilizing Electric Propulsion written by Donald Joseph Blersch and published by . This book was released on 1988 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. E. Moeckel
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (31 download)
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.
Author :
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.:/5 (31 download)
Download or read book Manned Mars Landing Mission by Means of High-thrust Rockets written by and published by . This book was released on 1966 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ernst Stuhlinger
Publisher :
ISBN 13 :
Total Pages : 404 pages
Book Rating : 4.3/5 (91 download)
Download or read book Ion Propulsion for Space Flight written by Ernst Stuhlinger and published by . This book was released on 1964 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William M. Marshall
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (899 download)
Download or read book Recommended Figures of Merit for Green Monopropellants written by William M. Marshall and published by . This book was released on 2013 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gordon R. Woodcock
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (472 download)
Download or read book A Propulsion Oriented Study of Mission Modes for Manned Mars Landing written by Gordon R. Woodcock and published by . This book was released on 1965 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Martin J.L. Turner
Publisher : Springer Science & Business Media
ISBN 13 : 9781852337353
Total Pages : 364 pages
Book Rating : 4.3/5 (373 download)
Download or read book Expedition Mars written by Martin J.L. Turner and published by Springer Science & Business Media. This book was released on 2004-01-09 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the reviews: "...I enjoyed the historical descriptions of the contributions of the early rocket pioneers Konstantin Tsiolkovsky, Robert Goddard, and Wernher von Braun, as well as the American and Russian manned programs...The book is aimed at the science-literate public, although the material varies in level of detail." (George D. Nelson, PHYSICS TODAY, June 2005)
Author : World Spaceflight News
Publisher :
ISBN 13 : 9781520127323
Total Pages : 222 pages
Book Rating : 4.1/5 (273 download)
Download or read book Wernher Von Braun's 1969 Manned Mars Mission Plans After Apollo and the Boeing 1968 Integrated Manned Interplanetary Nuclear Spacecraft Concept Definition Study written by World Spaceflight News and published by . This book was released on 2017-01-13 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the success of the Apollo 11 landing on the Moon, Wernher von Braun presented an ambitious plan for manned missions to Mars as soon as the 1980s to the Space Task Group for consideration by President Richard Nixon as the next step in America's space program. Nixon rejected the plan, and the goal of humans on Mars remains unfulfilled. Here are the technical details of his incredible nuclear rocket powered proposal, which was based on studies by Boeing in 1968. Contents: Boeing 1968 Study Volume 1 * Boeing 1968 Study Volume 2 * 1969 von Braun Manned Mars Mission Proposal * von Braun's Integrated Space Program, 1970-1990. In his presentation, von Braun wrote: With the recent accomplishment of the manned lunar landing, the next frontier is manned exploration of the planets. Perhaps the most significant scientific question is the possibility of extraterrestrial life in our solar system. Manned planetary flight provides the opportunity to resolve this universal question thus capturing international interest and cooperation. The information presented here describes a method of landing men on the planet Mars in 1982. The scientific goals of the mission are described and the key decision dates are identified. The 1981 manned Mars mission (1982 landing on Mars) is shown as an integral part of the total space program for the next two decades. The systems and experience resulting from the Apollo program and the missions proposed for the 1970's provide the technical and programmatic foundation for this undertaking. A 1982 manned Mars landing is a logical focus for the programs of the next decade. Although the undertaking of this mission will be a great national challenge, it represents no greater challenge than the commitment made in 1961 to land a man on the moon. Several different modes are possible for accomplishing Mars landing missions, each with its peculiar advantages and disadvantages. The typical Mars Landing Mission begins with the boost of the planetary vehicle elements into Earth orbit utilizing the Saturn V and Space Shuttle vehicles. Following assembly of the complete planetary vehicle in Earth orbit, the Earth departure phase of the mission is initiated. The Mars vehicle then begins a 270-day journey to Mars. This is by no means an idle phase of the mission. In addition to observations of Mars, many other experiments and measurements will be made on both the Earth-to-Mars and Mars-to-Earth legs of the trip that are of prime scientific importance. The spacecraft represents a manned laboratory in space, free of the disturbing influences of the Earth. The fact that there will be two observation points, Earth and the spacecraft, permits several possible experiments regarding the temporal and spatial features of the interplanetary environment. In addition, the spacecraft can be used to supplement and extend numerous observations conducted from Earth orbital space stations, particularly in the field of astronomy. It is possible, for example, that as yet unidentified comets might be observed for the first time.
Author :
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (873 download)
Download or read book A Low-alpha Nuclear Electric Propulsion System for Lunar and Mars Missions written by and published by . This book was released on 1992 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The advantages of using electric propulsion are well-known in the aerospace community. The high specific impulse and, therefore, lower propellant requirements make it a very attractive propulsion option for the Space Exploration Initiative (SEI). Recent studies have shown that nuclear electric propulsion (NEP) is not only attractive for the transport of cargo but that fast piloted missions to Mars are possible as well, with alphas on the order of 7.5 kg/kW. An advanced NEP system with a specific power [alpha] of 2.5 kg/kW or less would significantly enhance the manned mission option of NEP by reducing the trip time even further. This paper describes an advanced system that combines the PEGASUS Drive with systems of the Rotating Multimegawatt Boiling Liquid Metal (RMBLR) power system that was developed as part of the DOE multimegawatt program and just recently declassified. In its original configuration, the PEGASUS Drive was a 10-MWe propulsion system. The RMBLR was a 20-MW electric system. By combining the two, a second-generation PEGASUS Drive can be developed with an alpha less than 2.5 kg/kW. This paper will address the technology advancements incorporated into the PEGASUS Drive, the analysis of a fast piloted mission and an unmanned cargo transport Mars mission, and the integration of laser power beaming to provide surface power.
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (455 download)
Download or read book Design of a Manned Mars Mission Using IMPRESS Technology written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this creative investigation is the conceptual design of a propulsion system for a manned mission to Mars. Hydrogen and oxygen were selected as the propellants based upon their historical performance. The propellant storage system was a major consideration of the design due to the problems associated with storing hydrogen and oxygen. The most significant problems are the low density of hydrogen which requires large, heavy storage tanks and cryogenic storage of the propellants. In order to circumvent these problems, new storage techniques have been incorporated into the design of the propulsion system. Water will be stored in high strength, low density graphite composite tanks until needed. The water will then be electrolyzed into hydrogen and oxygen and cryogenically stored in high strength, low density graphite epoxy composite tanks. Incorporating these new technologies into the design significantly reduces the problems associated with using hydrogen and oxygen. Using the ideal rocket equation, a top level analysis was performed on five scenarios with different combinations of the presented technologies. Although initial calculations are positive, there are still limitations that must be overcome. Extensive testing and space qualification must be performed before these new technologies will be incorporated into a manned mission. More importantly, a manned spacecraft would be too heavy to launch from the surface of the Earth, therefore requiring that the spacecraft be constructed on orbit.
Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781731394767
Total Pages : 158 pages
Book Rating : 4.3/5 (947 download)
Download or read book Project Minerva: A Low Cost Manned Mars Mission Based on Indigenous Propellant Production written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-11-18 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Project Minerva is a low-cost manned Mars mission designed to deliver a crew of four to the Martian surface using only two sets of two launches from the Kennedy Space Center. Key concepts which make this mission realizable are the use of near-term technologies and in-situ propellant production, following the scenario originally proposed by R. Zubrin. The first set of launches delivers two unmanned payloads into low Earth orbit (LEO): the first payload consists of an Earth Return Vehicle (ERV), a propellant production plant, and a set of robotic vehicles; the second payload consists of the trans-Mars injection (TMI) upper stage. In LEO, the two payloads are docked and the configuration is injected into a Mars transfer orbit. The landing on Mars is performed with the aid of multiple aerobraking maneuvers. On the Martian surface, the propellant production plant uses a Sabatier/electrolysis type process to combine nine tons of hydrogen with carbon dioxide from the Martian atmosphere to produce over a hundred tons of liquid oxygen and liquid methane, which are later used as the propellants for the rover expeditions and the manned return journey of the ERV. The systems necessary for the flights to and from Mars, as well as those needed for the stay on Mars, are discussed. These systems include the transfer vehicle design, life support, guidance and communications, rovers and telepresence, power generation, and propellant manufacturing. Also included are the orbital mechanics, the scientific goals, and the estimated mission costs. Beder, David and Bryan, Richard and Bui, Tuyen and Caviezel, Kelly and Cinnamon, Mark and Daggert, Todd and Folkers, Mike and Fornia, Mark and Hanks, Natasha and Hamilton, Steve LIQUID ROCKET PROPELLANTS; MANNED MARS MISSIONS; MARS LANDING; ORBITAL MECHANICS; RETURN TO EARTH SPACE FLIGHT; TRANSFER ORBITS; UNIVERSITY PROGRAM; AEROBRAKING; EARTH ORBITS; ELECTRIC GENERATORS; LIFE SUPPORT SYSTEMS; LOW EARTH ORBITS; MARS SURFACE...
Author :
Publisher :
ISBN 13 :
Total Pages : 76 pages
Book Rating : 4.:/5 (317 download)
Download or read book International Exploration of Mars written by and published by . This book was released on 1991 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Powered Mars Cargo Transport Mission Utilizing Advanced Ion Propulsion written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear-powered ion propulsion technology was combined with detailed trajectory analysis to determine propulsion system and trajectory options for an unmanned cargo mission to Mars in support of manned Mars missions. A total of 96 mission scenarios were identified by combining two power levels, two propellants, four values of specific impulse per propellant, three starting altitudes, and two starting velocities. Sixty of these scenarios were selected for a detailed trajectory analysis; a complete propulsion system study was then conducted for 20 of these trajectories. Trip times ranged from 344 days for a xenon propulsion system operating at 300 kW total power and starting from lunar orbit with escape velocity, to 770 days for an argon propulsion system operating at 300 kW total power and starting from nuclear start orbit with circular velocity. Trip times for the 3 MW cases studied ranged from 356 to 413 days. Payload masses ranged from 5700 to 12,300 kg for the 300 kW power level, and from 72,200 to 81,500 kg for the 3 MW power level.
