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Author : Henry L. Kelley
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (31 download)
Download or read book Transition and Hovering Flight Characteristics of a Tilt-duct VTOL Research Aircraft written by Henry L. Kelley and published by . This book was released on 1962 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Henry L. Kelley
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (249 download)
Download or read book Transition and Hovering Flight Characteristics of a Tilt-duct VTOL Research Aircraft written by Henry L. Kelley and published by . This book was released on 1962 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 842 pages
Book Rating : 4.3/5 (91 download)
Download or read book NASA Technical Note written by and published by . This book was released on 1965 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert J. Tapscott
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (317 download)
Download or read book A Flight Study of the Conversion Maneuver of a Tilt-duct VTOL Aircraft written by Robert J. Tapscott and published by . This book was released on 1960 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. L. Stapleford
Publisher :
ISBN 13 :
Total Pages : 174 pages
Book Rating : 4.3/5 (91 download)
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.
Author : William A. Newsom
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (31 download)
Download or read book Flight Investigation of the Longitudinal Stability and Control Characteristics of a Four-propeller Tilt-wing VTOL Model with a Programed Flap written by William A. Newsom and published by . This book was released on 1962 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Louis P. Tosti
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (31 download)
Download or read book Flight Investigation of Stability and Control Characteristics of a 1/8-scale Model of a Tilt-wing Vertical-Take-Off-and-Landing (VTOL) Airplane written by Louis P. Tosti and published by . This book was released on 1960 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles C. Smith
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)
Download or read book Hovering and Transition Flight Tests of a 1/5-scale Model of a Jet-powered Vertical-attitude VTOL Research Airplane written by Charles C. Smith and published by . This book was released on 1961 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Louis P. Tosti
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (31 download)
Download or read book Rapid-transition Tests of a 1/4-scale Model of the VZ-2 Tilt-wing Aircraft written by Louis P. Tosti and published by . This book was released on 1961 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation of the longitudinal stability and control characteristics of a 1/4-scale model of the VZ-2 tilt-wing vertical-take-off- and-landing aircraft during rapid transitions has been made on the Langley control-line facility. Only the longitudinal characteristics were studied because with the control-line technique the other phases of the model motion are partially restrained. The rapid transitions from hovering to forward flight could be performed easily at any of the accelerations attempted; whereas, the transitions from forward flight to hovering were generally accompanied by a strong nose up pitching moment which at times was uncontrollable because of an inadequate amount of available pitch control. The model was more difficult to control during rapid decelerations than during slow decelerations and was also more difficult to control for rearward center-of-gravity conditions than for forward ones.
Author : Edwin E. Davenport
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (31 download)
Download or read book Transition Characteristics of a VTOL Aircraft Powered by Four Ducted Tandem Propellers written by Edwin E. Davenport and published by . This book was released on 1964 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Louis P. Tosti
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (31 download)
Download or read book Longitudinal Stability and Control of a Tilt-wing VTOL Aircraft Model with Rigid and Flapping Propeller Blades written by Louis P. Tosti and published by . This book was released on 1962 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Peter Gabriel Cross
Publisher :
ISBN 13 :
Total Pages : 530 pages
Book Rating : 4.:/5 (123 download)
Download or read book Conceptual Design, Development, and Simulation of a Tilt-duct Unmanned Aerial Vehicle with Vertical Takeoff and Landing Capabilities written by Peter Gabriel Cross and published by . This book was released on 2006 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Unmanned aerial vehicles possessing vertical takeoff and landing capabilities are receiving growing interest within the aerospace industry, as these aircraft can be operated in areas and on missions that preclude the use of conventional aircraft. This thesis presents the development and analysis of the triple tilt-duct aircraft configuration, an aircraft design suited for future generations of VTOL UAVs. The development of a conceptual design for a small-scale, "proof of concept" tilt-duct UAV is presented, culminating in a description of the final conceptual design. The methodology for a detailed analysis of the performance and the stability and control characteristics of the tilt-duct UAV design is outlined, along with the results from these analyses. The tilt-duct UAV has good stability and handling characteristics when in horizontal flight mode, but is highly unstable when hovering or in vertical flight mode. A study of the motion of the tilt-duct aircraft during transition maneuvers between horizontal and vertical flight modes is also presented; schemes for performing optimal transition maneuvers and maintaining adequate pitch control during the transitions are given as well. A flight simulation model was utilized to test the performance and stability and control of the tilt-duct UAV. Though it was not possible to accurately simulate transition maneuvers with the software package used, it was possible to obtain reasonable measurements of the aircraft's performance and response to control inputs. An outlook for the triple tilt-duct configuration is given, along with suggestions for future research. It is felt that the triple tilt-duct configuration is a viable design for future VTOL aircraft"--Abstract, leaf iii.
Author :
Publisher :
ISBN 13 :
Total Pages : 1492 pages
Book Rating : 4.U/5 (183 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1966 with total page 1492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Superintendent of Documents
Publisher :
ISBN 13 :
Total Pages : 1304 pages
Book Rating : 4.E/5 ( download)
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1963 with total page 1304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard K. Greif
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)
Download or read book Effect of Stabilization on VTOL Aircraft in Hovering Flight written by Richard K. Greif and published by . This book was released on 1972 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert J. Tapscott
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (31 download)
Download or read book A Flight Study of the Conversion Maneuver of a Tilt-duct VTOL Aircraft written by Robert J. Tapscott and published by . This book was released on 1960 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Aeronautics and Space Administration
Publisher :
ISBN 13 :
Total Pages : 448 pages
Book Rating : 4.:/5 (31 download)
Download or read book Index of NASA Technical Publications written by United States. National Aeronautics and Space Administration and published by . This book was released on 1960 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
