Download or read book The History of the XV 15 Tilt Rotor Research Aircraft written by Martin D. Maisel and published by . This book was released on 2000 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The History of the XV 15 Tilt Rotor Research Aircraft written by National Aeronautics and Space Administration and published by CreateSpace. This book was released on 2013-11-01 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph is a testament to the efforts of many people overcoming multiple technical challenges encountered while developing the XV-15 tilt rotor research aircraft. It is a comprehensive and detailed documentation of more than 40 years of effort at the NASA Ames Research Center designing this unique class of aircraft. The tilt rotor aircraft combines the advantages of vertical takeoff and landing capabilities, inherent to the helicopter, with the forward speed and range of a fixed wing turboprop airplane. NASA sees the tilt rotor as a new type of vehicle that will provide flexibility for high-speed, long-range flight, coupled with runway-independent operations. It takes the reader through the entire history, culminating with the first production of the V-22 Osprey, built for the U.S. Marine Corps, and the BA609 by Bell-Augusta. This publication takes the reader through the early ideas of Leonardo da Vinci through the search for an aircraft with Vertical Takeoff and Landing (VTOL) capabilities. There is abundant historical data about numerous innovative flying machines devised during the 1920s and 1930s, and German projects by Focke-Achgelis and Focke-Wulf. The publication includes illustrations from the 1930 flying machine patent of G. Lehberger, as well as the convertible aircraft patent of Haviland H. Platt (1955). The publication also describes how the XV-3 tilt rotor emerged from the Army/Air Force convertiplane program of the 1950s, and the evolution of tilt rotor, tilt wing, lift-fan, and direct lift versions and the evolution of the XV-3 program, which began in 1951. Flight tests are described in great detail, explaining the problems of stability. The development of tilt rotor aircraft technology involved some of the same factors that led to other important aeronautical accomplishments of this century. The vision of a few individuals in search of a practical and efficient new aircraft design, commitment to their goals, and their willingness to continue to pursue their objective while encountering major technical problems and programmatic challenges were critical ingredients in this tale. However, the unique aspect of the tilt rotor story was the combined Government and industry focused effort that was sustained for over four decades to explore, comprehend, develop, and refine this technology. The remarkable product of the investment of public and private funds, and the efforts of the people dedicated to the concept, is an aircraft type that will have an impact on civil and military aviation that will rival the introduction of the practical helicopter more than 60 years ago.
Download or read book The History of the Xv 15 Tilt Rotor Research Aircraft From Concept to Flight NASA Sp 2000 4517 2000 written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The XV 15 Tilt Rotor Research Aircraft written by and published by . This book was released on 1980 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The History of the XV 15 Tilt Rotor Research Aircraft written by Martin D. Maisel and published by Government Reprints Press. This book was released on 2001-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beskriver det amerikanske forsøgsprojekt med en Tilt Rotor på en flyvemaskine
Download or read book The History of the XV 15 Tilt Rotor Research Aircraft written by National Aeronautics and Space Administration (NASA) and published by . This book was released on 2017-04-29 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: This wonderful NASA history document tells the story of the successful development of the tilt rotor aircraft, which is not just about technology, but also about the efforts of many capable people who dedicated themselves to what they believed would be an important advancement in aviation. The tasks proved to be technically challenging and involved both high financial and safety risks. List of Acronyms * Introduction * Early Efforts * XV-3 Program * NASA-Army Cooperation * Building the Technology Base * Tilt Rotor Research Aircraft Project Office * Aircraft Development * Navy Participation * Flight Envelope Expansion * Flight Research Incidents * Paris Air Show * Evaluations and Demonstrations * Crash * The End of an Era * XV-15 Project Summary * Epilogue * Appendix A * Aircraft Descriptions * Appendix B * Key Personnel * Appendix C * Chronology * Appendix D * Awards and Records * Appendix E * Photo Gallery * Appendix F * Bibliography of Tilt Rotor Related Publications * Footnotes The XV-15 tilt rotor research aircraft program resulted in part from earlier investigations by the U.S. military seeking new and more efficient concepts for air support of field operations. The XV-3 tilt rotor emerged from the Army/Air Force convertiplane program of the 50s as a strong contender. However, it faced significant stability problems that discouraged many supporters and threatened to swamp the program. The program was continued by those in industry and Government who believed in the concept and its potential, and were willing to risk their investment. They were rewarded by the discovery of new techniques and the incorporation of new materials technology that made it possible to propose the XV-15 tilt rotor research aircraft project. It was my privilege to successfully advocate Army participation in the program with both funding and personnel. The unique aspects and synergistic values of the Army AARL/AMRDL-NASA interagency participation made this possible. It demonstrated the value of sharing resources in direct partnership toward common goals. Although not yet integrated into Army field strategies, the tilt rotor aircraft holds significant potential for consideration in future missions. The Marine V-22 Osprey demonstrates the rewards of the investment of defense dollars in the tilt rotor research aircraft project. There likely will be more.
Download or read book Simulation of the XV 15 Tilt Rotor Research Aircraft written by and published by . This book was released on 1982 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book XV 15 Tilt Rotor Research Aircraft written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulation of the XV 15 Tilt Rotor Research Aircraft written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-21 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effective use of simulation from issuance of the request for proposal through conduct of a flight test program for the XV-15 Tilt Rotor Research Aircraft is discussed. From program inception, simulation complemented all phases of XV-15 development. The initial simulation evaluations during the source evaluation board proceedings contributed significantly to performance and stability and control evaluations. Eight subsequent simulation periods provided major contributions in the areas of control concepts; cockpit configuration; handling qualities; pilot workload; failure effects and recovery procedures; and flight boundary problems and recovery procedures. The fidelity of the simulation also made it a valuable pilot training aid, as well as a suitable tool for military and civil mission evaluations. Simulation also provided valuable design data for refinement of automatic flight control systems. Throughout the program, fidelity was a prime issue and resulted in unique data and methods for fidelity evaluation which are presented and discussed. Churchill, G. B. and Dugan, D. C. Ames Research Center NASA-TM-84222, A-8848, NAS 1.15:84222 RTOP 532-04-11
Download or read book NASA Army XV 15 Tilt Rotor Research Aircraft Wind tunnel Test Program Plan written by and published by . This book was released on 1979 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamic Structural Aeroelastic Stability Testing of the XV 15 Tilt Rotor Research Aircraft written by and published by . This book was released on 1982 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the past 20 years, a significant effort has been made to understand and predict the structural aeroelastic stability characteristics of the tilt rotor concept. Beginning with the rotor-pylon oscillation of the XV-3 aircraft, and the problem was identified and then subjected to a series of theoretical studies, plus model and full-scale wind tunnel tests. From this data base, methods were developed to predict the structural aeroelastic stability characteristics of the XV-15 Tilt Rotor Research Aircraft. This paper examines the predicted aeroelastic characteristics in light of the major parameters effecting rotor-pylon-wing stability; describes flight test techniques used to obtain XV-15 aeroelastic stability; presents a summary of flight test results; compares the flight test results to the predicted values; and presents a limited comparison of wind tunnel results, flight test results, and their correlation with predicted values.
Download or read book The History of the XV 15 Tilt Rotor Research Aircraft written by Martin D. Maisel and published by . This book was released on 2000 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Xv 15 Tilt Rotor Aircraft for Flying Qualities Research Application written by R.C. Radford and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book XV 15 Tiltrotor Aircraft 1997 Acoustic Testing written by Bryan D. Edwards and published by . This book was released on 2003 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling XV 15 Tilt rotor Aircraft Dynamics by Frequency and Time domain Identification Techniques written by and published by . This book was released on 1986 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Models of the open-loop hover dynamics of the XV-15 Tilt-Rotor Aircraft are extracted from flight data using two approaches: frequency-domain and time-domain identification. Both approaches are reviewed and the identification results are presented and compared in detail. The extracted models compare favorably, with the differences associated mostly with the inherent weighting of each technique. Step responses are used to show that the predictive capability of the models from both techniques is excellent. Based on the results of this study, the relative strengths and weaknesses of the frequency and time-domain techniques are summarized, and a proposal for a coordinated parameter identification approach is presented. (Author).
Download or read book An Assessment of the Capability to Calculate Tilting Prop rotor Aircraft Performance Loads and Stability written by Wayne Johnson and published by . This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wind Tunnel Tests of the XV 15 Tilt Rotor Aircraft written by James A. Weiberg and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
