Download or read book The Effect of Line Disengagement Impulses Upon the Parachute Snatch Force written by Helmut G. Heinrich and published by . This book was released on 1966 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theory of parachute snatch force calculation incorporating the effect of the line disengagement impulses is developed and used to calculate snatch forces of the 28-ft solid flat circular parachute, C-9, for cases for which the results of numerous field tests are available. The calculated forces agree satisfactorily with the field test results. Further calculations with the same theory, however, without consideration of disengagement impulses showed consistently higher forces than the field tests results. This indicates that the disengagement impulses are significant contributions in the calculation of parachute snatch forces. Since the improved method of calculation provides the field tests fitting results, the benefits resulting from the disengagement impulses should be considered in the design of parachute deployment bags.
Download or read book Analysis of Wind Tunnel Tests Concerning Disengagement Impulses of Parachute Suspension Lines and Risers written by Helmut G. Heinrich and published by . This book was released on 1972 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 28-ft solid flat parachute, United States Air Force Standard C-9 canopy was deployed from its deployment bag in a wind tunnel running at speeds of 115, 150, and 200 fps. By means of electronic instrumentation the impulses were recorded that developed when the risers and suspension lines are disengaged from their ties and stow loops. The disengagement impulses were repeatable, and their numerical value was established and confirmed. The influence of the impulses upon the velocity of the moving mass is significant.
Download or read book Snatch Force During Lines first Parachute Deployment written by Earle K. Huckins (III.) and published by . This book was released on 1971 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: Snatch force is generally considered to be the maximum suspension-line tension at the vehicle during the deployment process prior to canopy inflation. For a canopy-first type of deployment, the maximum tension is generated immediately after the decelerator is completely extended. However, for a lines-first deployment, the maximum tension gnerally occurs as the canopy skirt emerges form the deployment bag.
Download or read book A Collection of Technical Papers written by and published by . This book was released on 1973 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AIAA Bulletin written by and published by . This book was released on 1973 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1974 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Download or read book The Space Shuttle Decision written by T. A. Heppenheimer and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long before the NASA was the throes of planning for the Apollo voyages to the Moon, many people had seen the need for a vehicle that could access space routinely. The idea of a reusable space shuttle dates at least to the theoretical rocketplane studies of the 1930s, but by the 1950s it had become an integral part of a master plan for space exploration. The goal of efficient access to space in a heavy-lift booster prompted NASA's commitment to the space shuttle as the vehicle to continue human space flight. By the mid-1960s, NASA engineers concluded that the necessary technology was within reach to enable the creation of a reusable winged space vehicle that could haul scientific and applications satellites of all types into orbit for all users. President Richard M. Nixon approved the effort to build the shuttle in 1972 and the first orbital flight took place in 1981. Although the development program was risky, a talented group of scientists and engineers worked to create this unique space vehicle and their efforts were largely successful. Since 1981, the various orbiters -Atlantis, Columbia, Discovery, Endeavour, and Challenger (lost in 1986 during the only Space Shuttle accident)- have made early 100 flights into space. Through 1998, the space shuttle has carried more than 800 major scientific and technological payloads into orbit and its astronaut crews have conducted more than 50 extravehicular activities, including repairing satellites and the initial building of the International Space Station. The shuttle remains the only vehicle in the world with the dual ability to deliver and return large payloads to and from orbit, and is also the world's most reliable launch system. The design, now almost three decades old, is still state-of-the-art in many areas, including computerized flight control, airframe design, electrical power systems, thermal protection system, and main engines. This significant new study of the decision to build the space shuttle explains the shuttle's origin and early development. In addition to internal NASA discussions, this work details the debates in the late 1960s and early 1970s among policymakers in Congress, the Air Force, and the Office of Management and Budget over the roles and technical designs of the shuttle. Examining the interplay of these organizations with sometimes conflicting goals, the author not only explains how the world's premier space launch vehicle came into being, but also how politics can interact with science, technology, national security, and economics in national government.
Download or read book All that is Solid Melts Into Air written by Marshall Berman and published by Verso. This book was released on 1983 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: The experience of modernization -- the dizzying social changes that swept millions of people into the capitalist world -- and modernism in art, literature and architecture are brilliantly integrated in this account.
Download or read book My Clan Against the World U S and Coalition Forces in Somalia 1992 1994 written by and published by DIANE Publishing. This book was released on 2004 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examines the American military's experience with urban operations in Somalia, particularly in the capital city of Mogadishu. That original focus can be found in the following pages, but the authors address other, broader issues as well, to include planning for a multinational intervention; workable and unworkable command and control arrangements; the advantages and problems inherent in coalition operations; the need for cultural awareness in a clan-based society whose status as a nation-state is problematic; the continuous adjustments required by a dynamic, often unpredictable situation; the political dimension of military activities at the operational and tactical levels; and the ability to match military power and capabilities to the mission at hand.
Download or read book Tarzan at the Earth s Core written by Edgar Rice Burroughs and published by Wildside Press LLC. This book was released on 2020-10-20 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: In response to a radio plea from Abner Perry, a scientist who with his friend David Innes has discovered the interior world of Pellucidar at the Earth's core, Jason Gridley launches an expedition to rescue Innes from the Korsars (corsairs), the scourge of the internal seas. He enlists Tarzan, and a fabulous airship is constructed to penetrate Pellucidar via the natural polar opening connecting the outer and inner worlds. The airship is crewed primarily by Germans, with Tarzan's Waziri warriors under their chief Muviro also along for the expedition.
Download or read book Silver Bullets written by Karl Rohnke and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers a guide to initiative problems, adventure games and trust activities. The activities of this book have all been used effectively by a variety of teachers, counsellors, therapists, camp directors and church leaders. All have wanted an effective, engaging way to bring people together to build trust, and to break down artificial barriers.
Download or read book Pirates of Venus written by Edgar Rice Burroughs and published by eStar Books. This book was released on 2012-04-10 with total page 847 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carson Napier is headed to Mars, but a navagation problem lands him on Venus instead! Where he discovers that this supposidly uninhabited world is filled with people and danger!
Download or read book The IABC Handbook of Organizational Communication written by Tamara Gillis and published by John Wiley & Sons. This book was released on 2011-03-21 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: The IABC Handbook of Organizational Communication THIS NEW EDITION of The IABC Handbook of Organizational Communication contains a comprehensive collection of practical knowledge about successful corporate communication and its effect on an organization as a whole. Thoroughly revised and updated to meet the realities of today’s organizational environment, the second edition of The IABC Handbook of Organizational Communication includes fresh case studies and original chapters. This vital resource contains information that is relevant to communicators in any organization, from global conglomerates to small businesses, public companies to private firms, and for-profits to nonprofits. The expert contributors cover a wealth of relevant topics, including how to excel at executive communication and executive coaching, an in-depth examination of communication counsel, a review of communication and ethics as a whole, a review of corporate social responsibility and sustainability issues, and how to prepare for communication during a crisis. The book also contains information on current issues and trends such as the effects of the recent recession and new technologies that affect strategic communication management. A review of internal and employee communication issues, the growing need for international and multicultural communication, and strategies for combining traditional and social media are explored in detail. Whether you are a professional communicator or a corporate executive without a background in the communication discipline, you will gain new insight into traditional and emerging issues in organizational communication and learn what it takes to reach stakeholders both inside and outside the organization.
Download or read book The Holy Terror written by H. G. Wells and published by Read Books Ltd. This book was released on 2016-09-14 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: When Cook's newborn baby entered the world, he had nothing but hope for its future. However, it was immediately clear that this was no ordinary child-it's murderous screams seemed a dark portent. As it grew, things only got worse, and the child's mother began to despair. The new parents hoped their child would grow out of it, but soon came to realise that its inauspicious beginnings were only a sign of things to come. Herbert George Wells (1866 - 1946) was a prolific English writer who wrote in a variety of genres, including the novel, politics, history, and social commentary. Today, he is perhaps best remembered for his contributions to the science fiction genre thanks to such novels as "The Time Machine" (1895), "The Invisible Man" (1897), and "The War of the Worlds" (1898). "The Father of Science Fiction" was also a staunch socialist, and his later works are increasingly political and didactic. Many vintage books such as this are becoming increasingly scarce and expensive. We are republishing this book now in an affordable, modern, high-quality edition complete with a specially commissioned new biography of the author.
Download or read book A Historical Review and Analysis of Army Physical Readiness Training and Assessment written by Whitfield East and published by CreateSpace. This book was released on 2013-12 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Drillmaster of Valley Forge-Baron Von Steuben-correctly noted in his "Blue Book" how physical conditioning and health (which he found woefully missing when he joined Washington's camp) would always be directly linked to individual and unit discipline, courage in the fight, and victory on the battlefield. That remains true today. Even an amateur historian, choosing any study on the performance of units in combat, quickly discovers how the levels of conditioning and physical performance of Soldiers is directly proportional to success or failure in the field. In this monograph, Dr. Whitfield "Chip" East provides a pragmatic history of physical readiness training in our Army. He tells us we initially mirrored the professional Armies of Europe as they prepared their forces for war on the continent. Then he introduces us to some master trainers, and shows us how they initiated an American brand of physical conditioning when our forces were found lacking in the early wars of the last century. Finally, he shows us how we have and must incorporate science (even when there exists considerable debate!) to contribute to what we do-and how we do it-in shaping today's Army. Dr. East provides the history, the analysis, and the pragmatism, and all of it is geared to understanding how our Army has and must train Soldiers for the physical demands of combat. Our culture is becoming increasingly ''unfit," due to poor nutrition, a lack of adequate and formal exercise, and too much technology. Still, the Soldiers who come to our Army from our society will be asked to fight in increasingly complex and demanding conflicts, and they must be prepared through new, unique, and scientifically based techniques. So while Dr. East's monograph is a fascinating history, it is also a required call for all leaders to better understand the science and the art of physical preparation for the battlefield. It was and is important for us to get this area of training right, because getting it right means a better chance for success in combat.
Download or read book Divining Victory written by William Arkin and published by WWW.Militarybookshop.CompanyUK. This book was released on 2010-05 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 2006 Israel-Hezbollah War may well be a paradigm for twenty-first century warfare. The technically sophisticated Israel Defense Forces (IDF) were confronted by a much smaller but well-armed and highly unconventional "state within a state" opponent. Israel launched an intensive 34-minute air assault designed to essentially disarm Hezbollah; it did not. Hezbollah's interspersion within the civilian population presented major targeting problems for the IDF, setting up condemnation of Israel's "over-reaction" in the international press. Airpower became the big loser in the press and after-action reports. Divining Victory examines the decisions, the effects, and the lessons learned for those who must confront similar enemies. Originally published in 2007. Recommended on the 2008 Royal Ar Force Chief of the Air Staffs' reading list.
Download or read book A Tramp Abroad written by Mark Twain and published by . This book was released on 1880 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
