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Liquid Acquisition Devices for Advanced In-Space Cryogenic Propulsion Systems

Liquid Acquisition Devices for Advanced In-Space Cryogenic Propulsion Systems
Author: Jason William Hartwig
Publisher: Academic Press
Total Pages: 489
Release: 2015-11-21
Genre: Technology & Engineering
ISBN: 0128039906

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Liquid Acquisition Devices for Advanced In-Space Cryogenic Propulsion Systems discusses the importance of reliable cryogenic systems, a pivotal part of everything from engine propulsion to fuel deposits. As some of the most efficient systems involve advanced cryogenic fluid management systems that present challenging issues, the book tackles issues such as the difficulty in obtaining data, the lack of quality data and models, and the complexity in trying to model these systems. The book presents models and experimental data based on rare and hard-to-obtain cryogenic data. Through clear descriptions of practical data and models, readers will explore the development of robust and flexible liquid acquisition devices (LAD) through component-level and full-scale ground experiments, as well as analytical tools. This book presents new and rare experimental data, as well as analytical models, in a fundamental area to the aerospace and space-flight communities. With this data, the reader can consider new and improved ways to design, analyze, and build expensive flight systems. Presents a definitive reference for design ideas, analysis tools, and performance data on cryogenic liquid acquisition devices Provides historical perspectives to present fundamental design models and performance data, which are applied to two practical examples throughout the book Describes a series of models to optimize liquid acquisition device performance, which are confirmed through a variety of parametric component level tests Includes video clips of experiments on a companion website


A Clean Sheet Approach to Space Acquisition in Light of the New Space Force

A Clean Sheet Approach to Space Acquisition in Light of the New Space Force
Author: William Shelton
Publisher:
Total Pages: 88
Release: 2021-10-31
Genre: Law
ISBN: 9781977407443

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The authors describe an unconstrained ?clean sheet? approach to space acquisition for the U.S. Space Force designed around the unique mission and calling of the new service.


Acquisition Strategies for Future Space-Based Optics

Acquisition Strategies for Future Space-Based Optics
Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
Total Pages: 14
Release: 2019-02-26
Genre: Technology & Engineering
ISBN: 0309487730

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This study originated with congressionally directed language from the House Permanent Select Committee for Intelligence (HPSCI) in 2016 and titled "Acquisition Strategies for Future Space Based Optics". This publication is an unclassified summary of the classified report.


Space Acquisitions

Space Acquisitions
Author: United States Government Accountability Office
Publisher: Createspace Independent Publishing Platform
Total Pages: 56
Release: 2017-09-13
Genre:
ISBN: 9781976366567

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Estimated costs for the Department of Defense's (DOD) major space acquisition programs have increased by about $12.2 billion from initial estimates for fiscal years 2006 through 2011. Cost growth for ongoing Air Force programs above initial estimates accounts for a substantial portion of this 44 percent increase. In light of the role that optimistic estimating is believed to have played in exacerbating space acquisition cost growth, you requested that we examine (1) in what areas space system acquisition cost estimates have been unrealistic and (2) what incentives and pressures have contributed to the quality and usefulness of cost estimates for space system acquisitions.


Improving Acquisition to Support the Space Enterprise Vision

Improving Acquisition to Support the Space Enterprise Vision
Author: Yool Kim
Publisher:
Total Pages: 142
Release: 2020-09-15
Genre: History
ISBN: 9781977405395

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The Space Enterprise Vision (SEV), developed jointly by Air Force Space Command (AFSPC) and the National Reconnaissance Office in 2015, describes an integrated approach to building a force across all space mission areas, coupling the delivery of space capabilities with the ability to defend space capabilities. Achieving this vision requires reducing acquisition time lines and improving integration of the space enterprise. Given that the SEV requires a departure from the way space systems are currently acquired, AFSPC headquarters and Space and Missile Systems Center (SMC) asked RAND Project AIR FORCE (PAF) to assess key barriers to realizing the SEV and recommend ways to overcome those barriers to help achieve the SEV goals. The research team examined a range of potential approaches to support the goals of the SEV, based on a literature review and semistructured interviews with acquisition subject matter experts and sponsor guidance. PAF identified several promising alternative acquisition approaches that merit in-depth examination in this project: modular open system architectures (MOSA), agile acquisition, rapid prototyping. These concepts are not new, but implementing them in a Department of Defense (DoD) setting is challenging for a variety of reasons. Therefore, the examination focuses on likely challenges to implementation and recommendations to overcome them to improve the likelihood of success should these acquisition approaches have a role in the SEV. Each of these acquisition approaches can be implemented independently, but there are instances in which they may be used synergistically, as illustrated in the body of the report.


Acquisition of Space Systems

Acquisition of Space Systems
Author: Yool Kim
Publisher: Rand Corporation
Total Pages: 0
Release: 2015
Genre: History
ISBN:

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As Department of Defense plans for the next-generation space systems in an increasingly challenging fiscal and security environment, it is important to apply lessons learned from past space acquisition, which had experienced many difficulties.


Space Acquisitions, Acquisition Management Continues to Improve But Challenges Persist for Current and Future Programs

Space Acquisitions, Acquisition Management Continues to Improve But Challenges Persist for Current and Future Programs
Author: U.s. Government Accountability Office
Publisher: Createspace Independent Publishing Platform
Total Pages: 28
Release: 2017-07-27
Genre:
ISBN: 9781973955863

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" Each year, DOD spends billions of dollars to acquire space-based capabilities that support military and other government operations. The majority of DOD's space programs were beset by significant cost and schedule growth problems during their development. Most programs are now in production, however, and acquisition problems are not as widespread and significant as they were several years ago. In prior years, GAO has identified a number of actions DOD is taking to improve management and oversight of space program acquisitions. Facing constrained budgets and concerns about the resiliency of its satellites, DOD is considering potential changes to how it acquires space systems. This testimony focuses on (1) the current status and cost of major DOD space systems acquisitions, (2) recent actions taken to further improve space systems acquisitions, and (3) potential impacts of the direction DOD is taking on upcoming changes to the acquisition of DOD space systems. This testimony is based on previously issued GAO products, ongoing GAO work on disaggregated architectures, interviews with DOD officials, and an analysis of DOD funding estimates from fiscal years 2013 through 2018. "


Space Acqusitions: DOD Delivering New Generations of Satellites, but Space System Acquisition Challenges Remain: Testimony Before the Subcommittee on Strategic Forces, Committee on Armed Services, U.S. Senate

Space Acqusitions: DOD Delivering New Generations of Satellites, but Space System Acquisition Challenges Remain: Testimony Before the Subcommittee on Strategic Forces, Committee on Armed Services, U.S. Senate
Author:
Publisher: DIANE Publishing
Total Pages: 34
Release:
Genre:
ISBN: 1437985750

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