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.

Download or read book Analysis of VTOL Handling Qualities Requirements Part 1 Longitudinal Hover and Transition written by Samuel J. Craig and published by . This book was released on 1968 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analyses of results from available handling qualities experiments were performed to determine dynamic and control requirements for VTOL aircraft. The basis for this treatment was an examination of the pilot/vehicle as a closed-loop servo system. The quasi-linear pilot describing function has been applied. The results of the studies suggest that the primary factors identifying satisfactory and unacceptable hover mode dynamic features are primarily related to the closed-loop pilot/vehicle system. Preliminary consideration is given to the longitudinal techniques and multiloop control structures suitable for manual control in transition. (Author).

Download or read book Analysis of VTOL Handling Qualities Requirements written by Samuel J. Craig and published by . This book was released on 1970 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analyses of available handling qualities data were performed to determine lateral/directional dynamic requirements for VTOL aircraft in hover and low speed flight. The basis for this treatment is an examination of the pilot/vehicle as a closed-loop servo system. The quasi-linear pilot describing function is applied. The results of the studies suggest that the primary factors identifying satisfactory and unacceptable hover mode dynamic features are related to the closed-loop deficiencies. Detailed consideration is made of the control task and piloting functions in transition flight. The results of this generic appraisal are evoked to confirm and justify preliminary lateral/directional requirement for control in transition. (Author).

Download or read book Conference on V STOL and STOL Aircraft Ames Research Center Moffett Field California April 4 5 1966 written by and published by . This book was released on 1966 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

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.

Download or read book An Analysis of the Stability and Control Characteristics of an Ejector Wing V STOL During Transition written by George Kurylowich and published by . This book was released on 1973 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis was performed to investigate the longitudinal stability and control characteristics of an ejector wing configuration V/STOL in transition. A derivative approach was used to obtain dynamic responses about specified trim speeds, and analysis of these responses provided an insight into the significant characteristics that might affect the pilot's control over the aircraft. The thrust levels necessary to meet the control requirements specified in MIL-F-83300 for a Level 1 category vehicle were determined as well. A similar study was made for a stowable rotor configuration, and results for the stowable rotor V/STOL and the ejector wing configuration were compared. Finally, the downwash characteristics of the ejector wing configuration were evaluated in terms of their effect on ground equipment and personnel. Spray generation during hover over water is also discussed.

Download or read book Handling Qualities Criteria written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Flight Mechanics Panel and published by . This book was released on 1972 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1988 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual NASA University Conference on Manual Control written by and published by . This book was released on 1968 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1966 with total page 1576 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Conference on Manual Control written by and published by . This book was released on 1967 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA University Conference on Manual Control written by and published by . This book was released on 1966 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings written by and published by . This book was released on 1967 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aircraft Stability and Control for Pilots and Engineers written by Brian Dickinson and published by . This book was released on 1968 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book VTOL Flying Qualities Bibliography written by John R. Kroll and published by . This book was released on 1967 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: