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Dynamics Control And Flying Qualities Of V Stol Aircraft
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Book Synopsis V/STOL Dynamics, Control, and Flying Qualities by : James A. Franklin
Download or read book V/STOL Dynamics, Control, and Flying Qualities written by James A. Franklin and published by . This book was released on 2000 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication presents materials that constituted the lectures presented by the author as part of Course AA 234 Dynamics, Control, and Flying Qualities of V/STOL Aircraft that was taught in the Department of Aeronautics and Astronautics at Stanford University. It covers representative operations of vertical and short takeoff and landing (V/STOL) aircraft, a discussion of the pilot's strategy in controlling these aircraft, the equations of motion pertinent to V/STOL tasks, and their application in the analysis of longitudinal and lateral-directional control in hover and forward flight. Following that development, which applies to the characteristics of the basic airframe and propulsion system, the text concludes with a discussion of the contributions of control augmentation in specific flight tasks and of the integration of modern electronic displays with these controls.
Book Synopsis Dynamics, Control, and Flying Qualities of V/STOL Aircraft by : James A. Franklin
Download or read book Dynamics, Control, and Flying Qualities of V/STOL Aircraft written by James A. Franklin and published by AIAA. This book was released on 2002 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation This text presents the principles of dynamics and control for vertical, short take-off landing (V/STOL) aircraft. It is the first book of its kind. It is intended for graduate students and professionals in aeronautics who have knowledge of linear systems analysis, aircraft static, dynamic stability, and control. The text begins with a discussion of V/STOL aircraft operations. Control strategies, equations of motion, longitudinal and lateral-directional flying qualities in both hover and forward flight, wind and turbulence responses, and control augmentation and cockpit displays are covered. Specific examples of the YAV-8B Harrier and XV-15 Tilt Rotor aircraft are used to illustrate actual V/STOL dynamic and control characteristics.
Book Synopsis An Examination of Handling Qualities Criteria for V/STOL Aircraft by : Seth B. Anderson
Download or read book An Examination of Handling Qualities Criteria for V/STOL Aircraft written by Seth B. Anderson and published by . This book was released on 1960 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study has been undertaken to define hand-ling qualities criteria for V/STOL aircraft. With the current military requirements for helicopters and airplanes as a framework, modifications and additions were made for conversion to a preliminary set of V/STOL requirements using a broad background of flight experience and pilots' comments from VTOL and STOL aircraft, BLC (boundary-layer-control) equipped aircraft, variable stability aircraft, flight simulators and landing approach studies. The report contains a discussion of the reasoning behind and the sources of information leading to suggested requirements. The results of the study indicate that the majority of V/STOL requirements can be defined by modifications to the helicopter and/or airplane requirements by appropriate definition of reference speeds. Areas where a requirement is included but where the information is felt to be inadequate to establish a firm quantitative requirement include the following: Control power and damping relationships about all axes for various sizes and types of aircraft; control power, sensitivity, d-amping and response for height control; dynamic longitudinal and dynamic lateral- directional stability in the transition region, including emergency operation; hovering steadiness; acceleration and deceleration in transition; descent rates and flight-path angles in steep approaches, and thrust margin for approach.
Book Synopsis A Flight Investigation of Lateral-directional Handling Qualities for V/STOL Aircraft in Low Speed Maneuvering Flight by : Karl-Heinz Doetsch
Download or read book A Flight Investigation of Lateral-directional Handling Qualities for V/STOL Aircraft in Low Speed Maneuvering Flight written by Karl-Heinz Doetsch and published by . This book was released on 1970 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation to determine the ranges of various lateral directional characteristics required to provide adequate flying qualities for turning maneuvers at low speed was undertaken using an airborne V/STOL aircraft simulator. Five parameters were varied in a systematic manner: the damping ratio, the frequency, and the ratio and the frequency of the numerator of the roll-angle to aileron-control-input transfer function. The pilots performed a low speed, visual maneuvering task and documented their assessment of the characteristics through extensive comments and a numerical rating. The report presents all the data categorized with respect to the test parameters. (Author).
Book Synopsis V/STOL Maneuverability and Control by :
Download or read book V/STOL Maneuverability and Control written by and published by . This book was released on 1984 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis V/STOL Aircraft Design Sensitivity to Flying Qualities Criteria Study by :
Download or read book V/STOL Aircraft Design Sensitivity to Flying Qualities Criteria Study written by and published by . This book was released on 1979 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report covers the work accomplished during the first half of the Design Sensitivity to Flying Qualities Criteria contract. The work to date is divided into two areas. The first was the development of the design sensitivity results. Four aircraft were sized for typical VSTOL missions. Sensitivities were established for several parameters through which flying qualities criteria I requirements affect vehicle performance/design. These sensitivities are presented here in terms of vehicle size (TOGW) variation and mission degradation. The second area of activity was directed at the extension of a scaling procedure for dynamic analysis of hovering vehicles. This technique allows the designer to assess the effect of mass and size variations on vehicle dynamics.
Book Synopsis Introduction to Aircraft Flight Dynamics by : Louis V. Schmidt
Download or read book Introduction to Aircraft Flight Dynamics written by Louis V. Schmidt and published by AIAA. This book was released on 1998 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis V/Stol Aircraft Design Sensitivity to Flying Qualities Criteria by : Billy B Brassell (Jr)
Download or read book V/Stol Aircraft Design Sensitivity to Flying Qualities Criteria written by Billy B Brassell (Jr) and published by . This book was released on 1980 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preliminary designs were developed for four generically different V/STOL airplane concepts. Two of the airplanes used lift/cruise fans and were designed to satisfy high altitude, subsonic Anti-Submarine Warfare (ASW) mission requirements. The other two airplanes used different jet lift and lift/cruise propulsion concepts and were designed for supersonic, Deck Launched Intercept (DLI) mission requirements. The sensitivities of each airplane to provisions for flying qualities were evaluated and were related to selected flying qualities characteristics. The study outlines a procedure and methodology that can be followed in future studies for assessing design sensitivity to flying qualities. The assessment procedure can be relatively simple in hover and cruise flight regimes, but may require extensive analysis in forward flight and transition flight regimes. Generally design sensitivities were found to be configuration specific, since takeoff gross weight sensitivity to thrust margin and propulsion control provisions can vary among different types of propulsion systems. Mission sensitivities were less variant between airplanes designed for similar missions. Design sensitivities to hover control power were by far the most significant to V/STOL design, and support a high priority need for satisfactory VTOL control power criteria.
Book Synopsis An Analytical Study of V/STOL Handling Qualities in Hover and Transition by : R. L. Stapleford
Download or read book An Analytical Study of V/STOL Handling Qualities in Hover and Transition written by R. L. Stapleford and published by . This book was released on 1965 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The hover analysis considers pilot attitude and position control tasks in the presence of horizontal gusts. The effects of each of the stability derivatives on the difficulty of the control tasks and on the closed-loop gust responses are determined. It is clearly shown that the handling qualities studies of control sensitivity and angular damping must consider the influences of M sub u (or L sub v) and should include gust inputs. These conclusions are substantiated by previous variable-stability-helicopter experiments. The effects of vehicle size and geometry are investigated by several approaches. The key result of increasing size is found to be a reduction in M sub u and L sub v which can, in turn, lower the requirements for control power and damping. The handling qualities during transition of two vehicles, a tilt duct and a tilt wing, which were previously tested on a simulator are analyzed. It is shown that both trim control and perturbations about the trim conditions must be considered. In fact, part of the increased difficulty in landing transitions, in comparison with takeoff transitions, is due to more difficult trim control; the much more stringent position control requirements in landing are also a contributing factor.
Book Synopsis Initial VTOL Flight Control Design Criteria Development - Discussion of Selected Handling Qualities Topics by : John Kroll (Jr.)
Download or read book Initial VTOL Flight Control Design Criteria Development - Discussion of Selected Handling Qualities Topics written by John Kroll (Jr.) and published by . This book was released on 1968 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report presents a series of discussions on selected topics related to the development of VTOL flying qualities criteria. The topics were chosen on the basis of their importance to flying qualities and the potential significance to the Air Force VTOL Integrated Flight Control System (VIFCS) program. The treatment given to the selected topics was aimed at identifying those areas that require further study and research within the scope of the VIFCS program. -- page iii.
Book Synopsis Introduction to Flight Dynamics by : Giorgio Guglieri
Download or read book Introduction to Flight Dynamics written by Giorgio Guglieri and published by Celid. This book was released on 2020-09-28 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended to serve a diverse audience of students and engineers who are interested in understanding and utilizing the concepts of flight dynamics. The volume provides to the reader the basic principles based on a classical analytical approach. The concepts of controllability and maneuverability are detailed starting from the definition of stability and control of the equilibrium states. Equations for the estimation of hinge moments and stick force in steady and maneuvering flight are provided. The equations of motion are then extended to unsteady flight and a detailed analytical model is derived for dynamic stability analysis, including an interpretation of stability and control derivatives. The modal response of the vehicle in the longitudinal and lateral-directional plane is also reconstructed. The problems inherent in the evaluation of the flying qualities of a fixedwing aircraft and the elements of parameter identification are also introduced. Finally, open and closed loop response to controls is discussed both in time and frequency domain.
Book Synopsis A Study of the Effects of Parameter Variation on the Flying Qualities of the XV-4B V/Stol Aircraft by : Arthur G. Jones
Download or read book A Study of the Effects of Parameter Variation on the Flying Qualities of the XV-4B V/Stol Aircraft written by Arthur G. Jones and published by . This book was released on 1972 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dominating influence of the propulsion system on the dynamic motion of a V/STOL aircraft operating in the hover or low-velocity flight modes has greatly increased the difficulty of developing such an aircraft to be stable and controllable during these modes. Small variations in stability derivatives caused by either changes in the propulsive system or errors in measurement or analytical prediction programs have been shown to cause significant changes in the dynamic characteristics of such aircraft. To better understand relationships, a program was performed using the Lockheed XV-4B jet-lift aircraft as a subject configuration. During this program, the magnitudes of ten of the stability derivatives used to describe the aircraft were varied individually, and the change in the roots of the linearized, uncoupled equations of motion noted. (Author).
Book Synopsis Flight Dynamics Principles by : Michael V. Cook
Download or read book Flight Dynamics Principles written by Michael V. Cook and published by Butterworth-Heinemann. This book was released on 2013-10-09 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flight dynamicists today need not only a thorough understanding of the classical stability and control theory of aircraft, but also a working appreciation of flight control systems and consequently a grounding in the theory of automatic control. In this text the author fulfils these requirements by developing the theory of stability and control of aircraft in a systems context.The key considerations are introduced using dimensional or normalised dimensional forms of the aircraft equations of motion only and through necessity the scope of the text will be limited to linearised small perturbation aircraft models. The material is intended for those coming to the subject for the first time and will provide a secure foundation from which to move into non-linear flight dynamics, simulation and advanced flight control. Placing emphasis on dynamics and their importance to flying and handling qualities it is accessible to both the aeronautical engineer and the control engineer. Emphasis on the design of flight control systemsIntended for undergraduate and postgraduate students studying aeronautical subjects and avionics, systems engineering, control engineering Provides basic skills to analyse and evaluate aircraft flying qualities
Book Synopsis Design Criteria for the Future of Flight Controls by : S. G. Fuller
Download or read book Design Criteria for the Future of Flight Controls written by S. G. Fuller and published by . This book was released on 1982 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings are reported of a symposium held in Dayton, sponsored by the Flight Dynamics Laboratory during 2-5 March 1982. The symposium was planned and ran by the Flight Control Division, specifically the Flying Qualities Group and the Control Techniques Group as part of an ongoing effort to revise and upgrade both MIL-F-8785C, Military Specification, Flying Qualities of Piloted Airplanes, and MIL-F-9490D, Flight Control System-Design, Installation and Test of Piloted Aircraft, General Specification For. Specialists from both the flying qualities and flight control system disciplines were gathered in Dayton from both industry and government agencies. Formal and informal presentations, plus workshop discussions, were structured around proposed draft versions of the new Flying Qualities MIL-Standard and Handbook and the new Flight Control Systems MIL-Specification and Handbook. This report contains a record of the presentations and discussions as submitted by the individual authors.
Author :North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development Publisher : ISBN 13 : Total Pages :522 pages Book Rating :4.:/5 (318 download)
Book Synopsis The Aerodynamics of V/STOL Aircraft by : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development
Download or read book The Aerodynamics of V/STOL Aircraft written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and published by . This book was released on 1968 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Airplane Flight Dynamics and Automatic Flight Controls by : Jan Roskam
Download or read book Airplane Flight Dynamics and Automatic Flight Controls written by Jan Roskam and published by DARcorporation. This book was released on 1998 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781724261021 Total Pages :394 pages Book Rating :4.2/5 (61 download)
Book Synopsis Interaction of Feel System and Flight Control System Dynamics on Lateral Flying Qualities by : National Aeronautics and Space Administration (NASA)
Download or read book Interaction of Feel System and Flight Control System Dynamics on Lateral Flying Qualities written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-27 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation of the influence of lateral feel system characteristics on fighter aircraft roll flying qualities was conducted using the variable stability USAF NT-33. Forty-two evaluation flights were flown by three engineering test pilots. The investigation utilized the power approach, visual landing task and up-and-away tasks including formation, gun tracking, and computer-generated compensatory attitude tracking tasks displayed on the Head-Up Display. Experimental variations included the feel system frequency, force-deflection gradient, control system command type (force or position input command), aircraft roll mode time constant, control system prefilter frequency, and control system time delay. The primary data were task performance records and evaluation pilot comments and ratings using the Cooper-Harper scale. The data highlight the unique and powerful effect of the feel system of flying qualities. The data show that the feel system is not 'equivalent' in flying qualities influence to analogous control system elements. A lower limit of allowable feel system frequency appears warranted to ensure good lateral flying qualities. Flying qualities criteria should most properly treat the feel system dynamic influence separately from the control system, since the input and output of this dynamic element is apparent to the pilot and thus, does not produce a 'hidden' effect. Bailey, R. E. and Knotts, L. H. Unspecified Center NASA-CR-179445, H-1584, NAS 1.26:179445, CALSPAN-7205-26 NASA ORDER A-43049-C; RTOP 505-67-01...
