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Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (317 download)
Download or read book Mars Flyer Rocket Propulsion Risk Assessment: ARC Testing written by and published by . This book was released on 2001 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781720619741
Total Pages : 36 pages
Book Rating : 4.6/5 (197 download)
Download or read book Mars Flyer Rocket Propulsion Risk Assessment Kaiser Marquardt Testing written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-03 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the investigation of a 10-N, bipropellant thruster, operating at -40 C, with monomethylhydrazine (MMH) and 25% nitric oxide in nitrogen tetroxide (MON-25). The thruster testing was conducted as part of a risk reduction activity for the Mars Flyer, a proposed mission to fly a miniature airplane in the Martian atmosphere. Testing was conducted using an existing thruster, designed for MMH and MON-3 propellants. The nitric oxide content of MON-3 was increased to 25%, to lower its freezing point to -55 C. The thruster was conditioned, along with the propellants, to temperature prior to hot firing. Thruster operating parameters included oxidizer-to-fuel mixture ratios of 1.6 to 2.7 and inlet pressure ranging from 689 to 2070 kPa. The test matrix consisted of many 10-second firings and several 60-, 300-, 600-, and 1200-second firings, as well as pulse testing. The thruster successfully accumulated nearly 10,000 seconds of operation without failure, at temperatures ranging from -40 C to 22 C. At nominal inlet pressures, the ignition delay was comparable to MMH/MON-3 operation. The optimal performance for the 8.9-N thruster was determined to be at a mixture ratio of 1.93 with an average specific impulse of 298 sec.Marquardt, KaiserGlenn Research CenterLIQUID ROCKET PROPELLANTS; PERFORMANCE TESTS; OXIDIZERS; NITROGEN TETROXIDE; MARS ATMOSPHERE; ROCKET ENGINES; FAILURE; ACCUMULATIONS; FLYING PERSONNEL; INLET PRESSURE; MELTING POINTS; MINIATURIZATION; MONOMETHYLHYDRAZINES; NITRIC OXIDE; SPECIFIC IMPULSE
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Publisher : DIANE Publishing
ISBN 13 : 1428995080
Total Pages : 87 pages
Book Rating : 4.4/5 (289 download)
Download or read book Comparison of Mars aircraft propulsion systems written by and published by DIANE Publishing. This book was released on with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 560 pages
Book Rating : 4.3/5 (243 download)
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 2002 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (317 download)
Download or read book Overview of Propulsion Systems for a Mars Aircraft written by and published by . This book was released on 2001 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721580460
Total Pages : 30 pages
Book Rating : 4.5/5 (84 download)
Download or read book Robotic Mars Sample Return written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-20 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comparison of the risk associated with two alternative scenarios for a robotic Mars sample return mission was conducted. Two alternative mission scenarios were identified, the Jet Propulsion Lab (JPL) reference Mission and a mission proposed by Johnson Space Center (JSC). The JPL mission was characterized by two landers and an orbiter, and a Mars orbit rendezvous to retrieve the samples. The JSC mission (Direct/SEP) involves a solar electric propulsion (SEP) return to earth followed by a rendezvous with the space shuttle in earth orbit. A qualitative risk assessment to identify and characterize the risks, and a risk analysis to quantify the risks were conducted on these missions. Technical descriptions of the competing scenarios were developed in conjunction with NASA engineers and the sequence of events for each candidate mission was developed. Risk distributions associated with individual and combinations of events were consolidated using event tree analysis in conjunction with Monte Carlo techniques to develop probabilities of mission success for each of the various alternatives. The results were the probability of success of various end states for each candidate scenario. These end states ranged from complete success through various levels of partial success to complete failure. Overall probability of success for the Direct/SEP mission was determined to be 66% for the return of at least one sample and 58% for the JPL mission for the return of at least one sample cache. Values were also determined for intermediate events and end states as well as for the probability of violation of planetary protection. Overall mission planetary protection event probabilities of occurrence were determined to be 0.002% and 1.3% for the Direct/SEP and JPL Reference missions respectively. Lalk, Thomas R. and Spence, Cliff A. Johnson Space Center
Author : Frank Degnan
Publisher : DIANE Publishing
ISBN 13 : 9780788180811
Total Pages : 50 pages
Book Rating : 4.1/5 (88 download)
Download or read book Aerospace Testing written by Frank Degnan and published by DIANE Publishing. This book was released on 1999-06 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reviews the cooperation between NASA & DoD since May 1996 to develop a national perspective on aerospace test facilities. Determines (1) the extent to which NASA/DoD working groups ( alliancesÓ) on major test facilities have been operating on a regular basis, (2) NASA's & DoD's actions in response to a future need to test an engine for new Air Force rockets, (3) whether NASA & DoD prepared a congressionally required joint plan on rocket propulsion test facilities, & (4) whether NASA & DoD are implementing a DoD assessment team's recommendation in March 1997 to jointly manage with NASA certain aeronautical test facilities.
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Publisher : DIANE Publishing
ISBN 13 : 1428975195
Total Pages : 50 pages
Book Rating : 4.4/5 (289 download)
Download or read book Aerospace testing promise of closer NASA/DOD cooperation remains largely unfulfilled : report to the chairman and ranking minority member, Subcommittee on Science, Technology and Space, Committee on Commerce, Science and Transportation, U.S. Senate written by and published by DIANE Publishing. This book was released on with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 138 pages
Book Rating : 4.:/5 (946 download)
Download or read book Wind Tunnel and Propulsion Test Facilities: An Assessment of NASA's Capabilities to Serve National Needs written by and published by . This book was released on 2004 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph reveals and discusses the National Aeronautics and Space Administration's (NASA's) wind tunnel and propulsion test facility management issues that are creating real risks to the United States' competitive aeronautics advantage.
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ISBN 13 :
Total Pages : 920 pages
Book Rating : 4.F/5 ( download)
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1998 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 326 pages
Book Rating : 4.F/5 ( download)
Download or read book Large Space Structures & Systems in the Space Station Era written by and published by . This book was released on 1991 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 1572 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 396 pages
Book Rating : 4.3/5 (129 download)
Download or read book Technology for Large Space Systems written by and published by . This book was released on 1989 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Publisher :
ISBN 13 :
Total Pages : 192 pages
Book Rating : 4.:/5 (317 download)
Download or read book Technology for Large Space Systems: A Bibliography with Indexes (supplement 20) written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1989 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David S. F. Portree
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (317 download)
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:
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ISBN 13 :
Total Pages : 650 pages
Book Rating : 4.F/5 ( download)
Download or read book Aerospace America written by and published by . This book was released on 1989 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Brian E. Hans
Publisher :
ISBN 13 : 9781608881932
Total Pages : 74 pages
Book Rating : 4.8/5 (819 download)
Download or read book Movement And Maneuver In Deep Space written by Brian E. Hans and published by . This book was released on 2020-11-24 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the authors' abstract: "This analytical study looks at the importance of Deep Space Operations and recommends an approach for senior policy leaders. Section 1 presents a capability requirements definition with candidate solutions and technology strategies. Section 2 recommends an acquisition and organizational approach. Section 3 provides an extended strategic rationale for deep space operations as a national priority." And from the Introduction: [this essay] "presents capability requirements, potential solutions, and strategic rationale for achieving movement and maneuver advantage in deep space. In this context, deep space is anything beyond geosynchronous Earth orbit (GEO). Driving the research are two primary assumptions underpinning the need for investment in deep space propulsion. The first assumption is that growing international activity, commerce, and industry in space extends the global commons, thus creating a military-economic imperative for the United States Department of Defense (DoD) to expand its protection of U.S. interests by defending space lines of communication. Although there are wide-ranging reasons to expand the space-faring capabilities of the human species, from the capitalistic to the existential, the fact of its occurrence offers the U.S. immense strategic opportunity. Section 1, operating on this assumption, recommends capability-based requirements for deep space operations given a projected future operating environment.The second driving assumption underpinning this study is that improved movement and maneuver capabilities in deep space offer a wide array of benefits for the current National Security Enterprise, and for this reason alone demands attention in the form of disciplined investment. Furthermore, because the core functional capability required for deep space operations is in-space propulsion, the requirement necessitates a materiel solution.
