Download or read book Calculation of Aerodynamic Characteristics of STOL Aircraft with Externally blown Jet augmented Flaps written by Michael R. Mendenhall and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Calculation of the Longitudinal Aerodynamic Characteristics of STOL Aircraft with Externally blown Jet augmented Flaps written by Marnix F. E. Dillenius and published by . This book was released on 1974 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theoretical investigation was made to develop methods for predicting the longitudinal aerodynamic characteristics of externally-blown, jet-augmented wing-flap combinations. A potential flow analysis was used to develop two models: a wing-flap lifting surface model and a high-bypass-ratio turbofan engine wake model. Use of these two models in sequence provides for calculation of the wing-flap load distribution including the influence of the engine wake. The method can accommodate multiple engines per wing panel and part-span flaps but is limited to the case where the flow and geometry of the configuration are symmetric about a vertical plane containing the wing root chord. Comparisons of predicted and measured lift and pitching moment on unswept and swept wings with one and two engines per panel and with various flap deflection angles indicate satisfactory prediction of lift and moment for flap deflections up to 30 to 40 degrees. At higher flap angles with and without power, the method begins to overpredict lift, due probably to the appearance of flow separation on the flaps.

Download or read book Calculation of Static Longitudinal Aerodynamic Characteristics of STOL Aircraft with Upper Surface Blown Flaps written by M. R. Mendenhall and published by . This book was released on 1975 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Methods for Predicting the Aerodynamic and Stability and Control Characteristics of STOL Aircraft written by M. I. Goldhammer and published by . This book was released on 1973 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report describes the STOL Aerodynamic Methods Computer Program, which is intended to aid the engineer in the design and analysis of STOL aircraft employing internally ducted jet flaps, externally blown jet flaps, and mechanical flap systems with vectored thrust. The program provides capabilities to predict either the overall aerodynamic characteristics of a configuration or the aerodynamics of the following: Jet-wing (in or out of ground effect); wing and vectored jets; fuselage in the flow field of the jet-wing and/or vectored jets; empennage in the flow field of the jet-wing and/or vectored jets. The program includes the capabilities for investigating the effects of arbitray wing planforms with arbitrary high lift systems, including partial span flaps, slats, and jets; arbitrary camber, twist, and jet deflection; fuselages with arbitrary cross-sections and upsweep; arbitrary empennage arrangements, including conventional tails, mid-tails, and T-tails; and a capability to calculate the off-body flow field induced by the jet-wing and/or vectored at arbitrary points.

Download or read book Methods for Predicting the Aerodynamic and Stability and Control Characteristics of STOL Aircraft written by M. I. Goldhammer and published by . This book was released on 1973 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes engineering methods for the prediction of the aerodynamic and stability and control characteristics of STOL aircraft employing internally ducted jet flaps, externally blown jet flaps, and mechanical flap systems with vectored thrust. These methods are intended to be used in conjunction with the theoretical methods and the associated computer program (STOL Aerodynamic Methods Computer Program) discussed in Volumes I and II, respectively. These engineering methods are intended to provide a rational approach for the aerodynamic analysis of complete STOL aircraft configurations and to provide semi-empirical methods to account for those effects not treated by the theoretical methods. These methods have been applied to configurations representative of each of the powered high-lift concepts, and the results of these analyses have been presented along with available experimental data to indicate the validity and range of applicability of the methods.

Download or read book A Flight Investigation of the STOL Characteristics of an Augmented Jet Flap STOL Research Aircraft written by and published by . This book was released on 1974 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Methods for Predicting the Aerodynamic and Stability and Control Characteristics of STOL Aircraft Volume II STOL Aerodynamic Methods Computer Program written by Mark I. Goldhammer and published by . This book was released on 1973 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report describes the STOL Aerodynamic Methods Computer Program, which is intended to aid the engineer in the design and analysis of STOL aircraft employing internally ducted jet flaps, externally blown jet flaps, and mechanical flap systems with vectored thrust. The program provides capabilities to predict either the overall aerodynamic characteristics of a configuration or the aerodynamics of the following: Jet-wing (in or out of ground effect); wing and vectored jets; fuselage in the flow field of the jet-wing and/or vectored jets; empennage in the flow field of the jet-wing and/or vectored jets. The program includes the capabilities for investigating the effects of arbitray wing planforms with arbitrary high lift systems, including partial span flaps, slats, and jets; arbitrary camber, twist, and jet deflection; fuselages with arbitrary cross-sections and upsweep; arbitrary empennage arrangements, including conventional tails, mid-tails, and T-tails; and a capability to calculate the off-body flow field induced by the jet-wing and/or vectored at arbitrary points.

Download or read book Methods for Predicting the Aerodynamic and Stability and Control Characteristics of STOL Aircraft Volume I Basic Theoretical Methods written by Mark I. Goldhammer and published by . This book was released on 1973 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary goal of the study has been the development of a unified set of analytical methods which would provide the capability to calculate the stability and control characteristics of an arbitrary STOL aircraft configuration that might employ the internally ducted jet flap, externally blown jet flap, or a mechanical high lift system with vectored thrust. This volume presents the complete theoretical development of the relevant analytical methods. In addition, it presents comparisons of these methods with other analytical solutions and with experimental data.

Download or read book Wind tunnel Investigation of the Aerodynamic Characteristics of a Model Representative of a Supersonic Fighter class Airplane with an External flow Jet augmented Flap in Low speed Flight written by William A. Newsom and published by . This book was released on 1959 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aerodynamic Characteristics Temperature and Noise Measurements of a Large scale External flow Jet augmented flap Model with Turbojet Engines Operating written by Marvin P. Fink and published by . This book was released on 1961 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation has been conducted in the Langley full-scale tunnel on a large-scale model powered by turbojet engines with flattened rectangular nozzles. The wing had 35° sweep of the leading edge, an aspect ratio of 6.5, a taper ratio of 0.31, and NACA 65(1)-412 and 65-408 airfoils at the root and tip. The investigation included measurements of the longitudinal aerodynamic characteristics of the model with half-span and full-span flaps and measurements of the sound pressure and skin temperature on the portions of the lower surface of the wing immersed in the jet flow. The tests were conducted over a range or angles of attack from -8° to 16° for Reynolds numbers from 1.8 x 106 to 4.4 x 106 and a range of momentum coefficients from 0 to 2.0. In general, the aerodynamic results of this investigation made with a large-scale hot-jet model verified the results of previous investigations with small models powered by compressed-air jets. Although blowing was only done over the inboard portion of the wing, substantial amounts of induced lift were also obtained over the outboard portion of the wing. Skin temperatures were about 340° F and wing heating could be handled with available materials without cooling. Random acoustic loadings on the wing surface were high enough to indicate that fatigue failure from this source would require special consideration in the design of an external-flow jet flap system for an airplane.

Download or read book Calculation of the Longitudinal Aerodynamic Characteristics of Wing flap Configurations with Externally Blown Flaps written by and published by . This book was released on 1976 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Technical Note written by and published by . This book was released on 1974 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aerodynamic Characteristics of a Large scale Model with an Unswept Wing and Augmented Jet Flap written by David G. Koenig and published by . This book was released on 1968 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Calculation of the Longitudinal Aerodynamic Characteristics of Upper surface Blown Wing flap Configurations written by Michael R. Mendenhall and published by . This book was released on 1978 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Calculation of the longitudinal aerodynamics characteristics of wing flap configurations with externally blown flaps written by and published by . This book was released on 1977 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 1974 with total page 1446 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1979 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.