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Rlv Flight Operations Demonstration With A Prototype Nanosat Launch Vehicle Preprint
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Book Synopsis RLV Flight Operations Demonstration with a Prototype Nanosat Launch Vehicle (PREPRINT). by :
Download or read book RLV Flight Operations Demonstration with a Prototype Nanosat Launch Vehicle (PREPRINT). written by and published by . This book was released on 2006 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Actual flight-based test and evaluation of vertical take-off reusable launch vehicles (RLVs) has been dormant in the U.S. since the end of the SDIO/NASA/McDonnell Douglas Delta Clipper - Experimental Advanced (DC-X/XA) project in 1996. A joint industry-academic team working under sponsorship from the Air Force Research Laboratory's Propulsion Directorate took a small step in 2005 towards re-invigorating such RLV test and evaluation activities, using an early, low-fidelity prototype of the first stage for a proposed nanosat launch vehicle (NLV) that is sized to deliver up to 10 kg into low Earth orbit. This team developed the LOX/ethanol Prospector-7 (P-7) in only six months and then flew it twice in a period of 3.5 hours after just eighteen hours of field site preparations. This compares to the twenty-six hour turn-around benchmark achieved with the DC-XA at the White Sands Missile Range. The P-7 has since been employed on a third flight test and is now undergoing preparation for its fourth mission later this year. In addition to supporting NLV development, it is anticipated that the results and lessons learned from these demonstrations of responsive, rapid RLV turn-around operations could also prove to be of relevance to the Air Force's ongoing investigations into hybrid launch vehicle concepts.
Book Synopsis Initial Results from the Demonstration and Analysis of Reusable Nanosat Launch Vehicle Operations by : J. M. Garvey
Download or read book Initial Results from the Demonstration and Analysis of Reusable Nanosat Launch Vehicle Operations written by J. M. Garvey and published by . This book was released on 2007 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flight testing of prototype reusable launch vehicles (RLVs) has declined significantly since a period in the mid-1990s that was marked by ambitious projects but uneven results. Consequently, a new program has been established with the objective of investigating RLV-type fast turn-around flight operations. Major distinctions from these earlier efforts include the use of a smaller class of vehicles and payloads, along with an initial emphasis on operations as opposed to advanced technologies. This focus on a hybrid-type (reusable first stage and expendable second stage) "nanosat launch vehicle" (NLV) that ultimately could deliver 10 kg to low Earth orbit has already produced tangible results. These include initial operational capability of a new prototype vehicle just six months after project start, two flights of this vehicle within 3.5 hours, a total of four flights within an eleven month period, pathfinding operations from a new launch site and the manifesting of numerous technology and academic experiments. Lessons learned from this first round of demonstration and analysis are now guiding the development of several next-generation prototype reusable NLVs that will enter flight testing later this year.
Book Synopsis Demonstration and Analysis of Reusable Launch Vehicle Operations by : John Garvey
Download or read book Demonstration and Analysis of Reusable Launch Vehicle Operations written by John Garvey and published by . This book was released on 2006 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report developed under SBIR contract for topic AF05-201. The increased use of reusable systems continues to be one of the most promising options for creating advancements in the daily maintenance of rocket systems, lowering hours for preparation and diminishing expenses for preparation. However, since the end of the DC-X/XA Delta Clipper program, flight testing of candidate reusable launch vehicle (RLV) designs, technologies and operations has come to a halt. This project addressed this situation through the development and flight testing during Phase I of an early prototype RLV that could ultimately evolve into the first stage of an operational nanosat launch vehicle (NLV). This LOX/ethanol-propellant vehicle -the Prospector 7 -took flight twice within a 3.5 hour period after less than a day of pre-launch field preparations, thereby establishing a new reference metric for RLV-type responsive, fast turn-around launch operations. Besides serving as an operational pathfinder, this RLV test bed also manifested several academic payloads in support of a related goal of assessing candidate nanosat-class payload accommodations. In a solid demonstration of the commercial potential for this kind of capability, the Prospector 7 itself has already been assigned to non-SBIR follow-on flight test activities.
Book Synopsis Rapid Turn-Around Flight Testing of a Next-Generation Prototype RNLV (Preprint). by :
Download or read book Rapid Turn-Around Flight Testing of a Next-Generation Prototype RNLV (Preprint). written by and published by . This book was released on 2008 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents the status and results from an ongoing development and flight test program that is investigating both reusable nanosat launch vehicles (RNLV), with an emphasis on fast turn-around operations, and early pathfinding for operationally responsive space. A related objective is enhancing the Technology Readiness Level of candidate launch vehicle technologies whenever they can be accommodated as complementary research experiments. The present program builds upon previous work that featured four flight tests (two conducted in a single day within 3.5 hours) with an earlier prototype RNLV first stage (the Prospector 7) that was developed under a Phase I SBIR sponsored by the Air Force Research Laboratory - Propulsion Directorate with support from the Air Force Space & Missile Systems Center. Recent work that falls under the scope of a follow-on Phase II SBIR contract has focused on developing a next-generation prototype RNLV first stage. The Phase II objective is to improve both the performance environment and operational fidelity of these flight tests, thereby bringing them closer to those anticipated for orbital missions. Milestones during the past two years have included horizontal static fire testing of a new 4.5 klbf-thrust LOX/ethanol first stage engine, vertical static fire testing of this engine with an interim test vehicle (the Prospector 8) and its initial flight demonstration, and integration and an initial static fire test attempt with the next prototype vehicle (the Prospector 9). Among the latter's most notable design features are two full-scale composite cryogenic propellant tanks. Final integration and operational preparations are gearing up to initiate low-altitude flight testing later this summer.
Book Synopsis Concepts of Operations for a Reusable Launch Vehicle by : Michael A. Rampino
Download or read book Concepts of Operations for a Reusable Launch Vehicle written by Michael A. Rampino and published by . This book was released on 1997 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States is embarked on a journey toward maturity as a spacefaring nation. One key step along the way is development of a reusable launch vehicle (RLV). The most recent National Space Transportation Policy (August 1994) assigned improvement and evolution of current expendable launch vehicles to the Department of Defense while National Aeronautical Space Administration (NASA) is responsible for working with industry on demonstrating RLV technology. The purpose of this study is to help ensure the US military, especially the USAF, is prepared to take advantage of RLVs should the NASA-led effort to develop an RLV demonstrator prove successful. The focus of this study is an explanation of how the US military could use RLVs, by describing and analyzing two concepts of operations. Four major conclusions resulted from the analysis. First, RLVs have military potential. They can perform a variety of missions including responsive spacelift, reconnaissance, and strike. However, the economic feasibility of using RLVs for earth-to-earth transportation is questionable. Second, design choices for an operational RLV will have effects on risk, cost, capability, and operations efficiency. Trade-offs will have to be made between NASA, commercial, and military requirements if all three parties are to use the same fleet of RLVs. Third, increased investment in propulsion technology development is warranted to ensure success. Fourth, the top priority for the RLV program, even from the military's perspective, should remain cheap and responsive access to space. The research led to three recommendations. First, the US military should become a more active participant in the RLV program to ensure its requirements are defined and incorporated. Second, America should not pursue development of operational RLVs before the technology is ready.
Book Synopsis Reusable Launch Vehicles and Space Operations by : John E. Ward
Download or read book Reusable Launch Vehicles and Space Operations written by John E. Ward and published by . This book was released on 2000 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Air Force-Navy Team Achieves Important Flight Test Milestone for Responsive Space Lift by :
Download or read book Air Force-Navy Team Achieves Important Flight Test Milestone for Responsive Space Lift written by and published by . This book was released on 2006 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: A joint service team consisting of the Air Force Research Laboratory's Propulsion Directorate (AFRL/PR), the Space and Missile Systems Center (SMC) and the Naval Air Warfare Center (NAVAIR) achieved a signficant milestone on 28 September 2006 with an initial demonstration of responsive launch operations from the Navy's San Nicolas Island. Using an early prototype of the first stage for a reusable launch vehicle (RLV), the test focused on programmatic processes and issues that are considered to be critical factors to enabling responsive space lift with future launch systems. San Nicolas Island, which is situated off the coast of southern California and is a key element of NAVAIR's Sea Range, was chosen to host this test because it shares many of the same features relative to geography, facilities and logistics as other candidate launch sites that SMC is assessing as part of its Generic Approach to Launch Transformation (GALT) initiative.
