Download or read book Flight Investigation of Various Longitudinal Short Term Dynamics for STOL Landing Approach Using the X 22A Variable Stability Aircraft written by and published by . This book was released on 1973 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first in-flight flying qualities experiment using the variable stability X-22A aircraft investigated longitudinal flying qualities requirements for STOL aircraft in terminal area operations. Emphasis was placed on defining minimum requirements for the short-term response in VFR and IFR landing approaches at representative steep STOL approach conditions of 65 and 80 knots. Evaluation flights were conducted in negligible and moderate turbulence for a wide range of short-term frequencies and dampings. Identification of the dynamics of the evaluation configurations was performed, to a large extent, by a new, advanced digital identification technique developed for the X-22A aircraft.
Download or read book NASA Technical Note written by and published by . This book was released on 1974 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flight Investigation of Lateral Directional Flying Qualities and Control Power Requirements for STOL Landing Approach Using the X 22A Aircraft Volume I Technical Results written by R. E. Smith and published by . This book was released on 1974 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: A flight investigation of the influence of lateral-directional dynamics and control power requirements on flying qualities for STOL aircraft in terminal area operations was conducted using the X-22A variable stability aircraft. The primary dynamic variables of the experiment were roll mode time constant, Dutch roll undamped natural frequency, roll-to-sideslip ratio, and yaw due to aileron; in addition, the roll control power available was varied by electrically limiting the lateral stick command of the evaluation pilot. Three pilots performed 102 evaluations of various combinations of these variables at a representative STOL approach condition of gamma = -7.5 degrees, V = 65 kts. During the evaluations, a qualitative separation of ambient turbulence level was made through approximate measurements from the aircraft. (Modified author abstract).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1973 with total page 1102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Parameter Estimation Techniques and Applications in Aircraft Flight Testing written by and published by . This book was released on 1974 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book STAR written by and published by . This book was released on 1973 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book V STOL Flight Simulation written by and published by . This book was released on 1979 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flight Investigation of Lateral Directional Flying Qualities and Control Power Requirements for STOL Landing Approach Using the X 22A Aircraft Volume II Background Information written by R. E. Smith and published by . This book was released on 1974 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three pilots performed 102 evaluations of various combinations of variables at a representative STOL approach condition of gamma = 7.5 degrees, V = 65 kts. During the evaluations, a qualitative separation of ambient turbulence level was made through approximate measurements from the aircraft. The configuration dynamics were identified and verified with a digital identification technique developed for the X-22A, and data analyses include statistical measurements of pilot workload and performance, as well as correlation of pilot rating data with these measures, the configuration dynamics, and the roll control power available. (Modified author abstract).
Download or read book Flight Evaluation of Various Short Period Dynamics at Four Drag Configurations for the Landing Approach Task written by Charles Ray Chalk and published by . This book was released on 1964 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: The T-33 variable stability and variable drag airplane was used in a flight program to evaluate various longitudinal short period characteristics at each of four drag configurations for the landing approach task. Pilot rating and comment data were collected and used to determine short period requirements for the landing approach task. The importance of the slope of the thrust required vs. velocity curve is discussed and related to pilot comments and control difficulties. The longitudinal control gain selected by the pilot was a function of short period frequency and damping ratio. Curves relating control authority and short period frequency and damping ratio are derived from these data. The power spectral density of the pilot's elevator stick motion was found to be significantly affected by short period dynamics and atmospheric turbulence.
Download or read book Calculation of the Dynamic Longitudinal Stability of a Tilt wing V STOL Aircraft and Correlation with Model Flight Tests written by Joseph R. Chambers and published by . This book was released on 1968 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Flight Investigation and Analysis of Longitudinal Handling Qualities of STOL Aircraft on Landing Approach written by Karl-H Doetsch (Jr) and published by . This book was released on 1974 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: A flight investigation was undertaken of the longitudinal handling qualities of the STOL class of aircraft controlled through the modulation of pitch and normal thrust, and flown on steep, instrument landing approaches at low airspeed. Pilots' assessments of the characteristics resulting from independent variations in both short and long term longitudinal dynamics were obtained. It was found that the pitch control characteristics dominated the handling qualities. The more easily and precisely pitch could be controlled, the more adverse the control characteristics of the other degrees of freedom the pilot would accept. When precise long-term control of airspeed through pitch modulation was not difficult, the pilots were prepared to tolerate operation well along the backside of the power-required curve.
Download or read book A Flight Examination of Operating Problems of V STOL Aircraft in STOL Type Landing and Approach written by Robert C. Innis and published by . This book was released on 1961 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AGARD Conference Proceedings written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and published by . This book was released on 1975 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulator Study of Minimum Acceptable Level of Longitudinal Stability for a Representative STOL Configuration During Landing Approach written by William D. Grantham and published by . This book was released on 1974 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: A fixed-base simulator study was conducted to determine the minimum acceptable level of longitudinal stability for a representative turbofan STOL (short take-off and landing) transport airplane during the landing approach. Real-time digital simulation techniques were used. The computer was programed with equations of motion for six degrees of freedom, and the aerodynamic inputs were based on measured wind-tunnel data. The primary piloting task was an instrument approach to a breakout at a 60-m (200-ft) ceiling.
Download or read book 90 3189 90 3217 written by and published by . This book was released on 1990 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research and Technology Program Digest written by United States. National Aeronautics and Space Administration and published by . This book was released on with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1974 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt:
