Author: Crystal L. Evans
Publisher:
ISBN: 9781423568414
Category : Artificial satellites
Languages : en
Pages : 89
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Book Description
Currently, the Air Force launches military satellites on expendable launch vehicles to low earth orbit (LEO), and with the use of a chemical upper stage or an apogee kick motor, moves the satellite to a higher orbit. This launch procedure is extremely costly because it requires additional launch preparations, technology considerations, equipment, and fuel. Also, the additional mass of the chemical upper stage causes a larger, and thus more expensive, launch vehicle to be required. An economical alternative is to utilize reusable launch vehicles (RLVs) and reusable orbital launch vehicles (ROTVs). This concept could possibly achieve even greater savings if satellites were dual manifested on the launch vehicles. This thesis determines - by varying mass capacity of RLVs, the cost per kg of RLV mass capacity, and the satellite cost per kg - when, within a given scenario, the savings of dual manifesting is at least ten percent of the cost of single manifesting by developing a dual manifesting algorithm and simulation to analyze possible savings.
Author: Institute for Operations Research and the Management Sciences. National Meeting
Publisher:
ISBN:
Category : Industrial management
Languages : en
Pages : 156
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Book Description
Author: John E. Ward
Publisher:
ISBN:
Category : Launch vehicles (Astronautics)
Languages : en
Pages : 100
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
The X-33 and X-34 technology demonstration programs currently under way by NASA may ultimately lead to a commercial reusable launch vehicle (RLV). The first flight test for the X-33 vehicle is planned for early 1999. With NASA fully committed to the development of this first-ever completely reusable vehicle, it is prudent for the Air Force to examine the potential benefits, requirements, and costs for a military transatmospheric vehicle (TAV). This vehicle would take advantage of technologies developed during RLV-related programs. Although similar in concept, a military TAV may differ significantly in design and in capability from an RLV produced to satisfy commercial market needs.
Author:
Publisher: Smashbooks
ISBN:
Category :
Languages : en
Pages : 594
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Book Description
Author: United States. Joint Chiefs of Staff
Publisher:
ISBN:
Category : Military art and science
Languages : en
Pages : 392
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Book Description
Author: K. F. Long
Publisher: Springer Science & Business Media
ISBN: 1461406072
Category : Technology & Engineering
Languages : en
Pages : 379
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Book Description
The technology of the next few decades could possibly allow us to explore with robotic probes the closest stars outside our Solar System, and maybe even observe some of the recently discovered planets circling these stars. This book looks at the reasons for exploring our stellar neighbors and at the technologies we are developing to build space probes that can traverse the enormous distances between the stars. In order to reach the nearest stars, we must first develop a propulsion technology that would take our robotic probes there in a reasonable time. Such propulsion technology has radically different requirements from conventional chemical rockets, because of the enormous distances that must be crossed. Surprisingly, many propulsion schemes for interstellar travel have been suggested and await only practical engineering solutions and the political will to make them a reality. This is a result of the tremendous advances in astrophysics that have been made in recent decades and the perseverance and imagination of tenacious theoretical physicists. This book explores these different propulsion schemes – all based on current physics – and the challenges they present to physicists, engineers, and space exploration entrepreneurs. This book will be helpful to anyone who really wants to understand the principles behind and likely future course of interstellar travel and who wants to recognizes the distinctions between pure fantasy (such as Star Trek’s ‘warp drive’) and methods that are grounded in real physics and offer practical technological solutions for exploring the stars in the decades to come.
Author: United States. Columbia Accident Investigation Board
Publisher: U.S. Independent Agencies and Commission
ISBN:
Category : Science
Languages : en
Pages : 260
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Book Description
CD-ROM accompanying vol. 1 contains text of vol. 1 in PDF files and six related motion picture files in Quicktime format.
Author: Davide Sivolella
Publisher: Springer Nature
ISBN: 3030308812
Category : Technology & Engineering
Languages : en
Pages : 218
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Book Description
This book produces convincing evidence that exploiting the potential of space could help solve many environmental and social issues affecting our planet, such as pollution, overcrowding, resource depletion and conflicts, economic inequality, social unrest, economic instability and unemployment. It also touches on the legal problems that will be encountered with the implementation of the new technologies and new laws that will need to be enacted and new organizations that will need to be formed to deal with these changes. This proposition for a space economy is not science fiction, but well within the remit of current or under development technologies. Numerous technologies are described and put together to form a coherent and feasible road map that, if implemented, could lead humankind towards a brighter future.
Author: David M. Harland
Publisher: Springer Science & Business Media
ISBN: 038727961X
Category : Science
Languages : en
Pages : 370
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Book Description
The very first book on space systems failures written from an engineering perspective. Focuses on the causes of the failures and discusses how the engineering knowledge base has been enhanced by the lessons learned. Discusses non-fatal anomalies which do not affect the ultimate success of a mission, but which are failures nevertheless. Describes engineering aspects of the spacecraft, making this a valuable complementary reference work to conventional engineering texts.
