An Empirical Method For Estimating The Effect Of Ground Proximity On The Jet Induced Lift Of Vstol Aircraft Employing Rectangular Jets PDF Download

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An Empirical Method For Estimating the Effect of Ground Proximity on the Jet-Induced Lift of V/STOL Aircraft Employing Rectangular Jets

An Empirical Method For Estimating the Effect of Ground Proximity on the Jet-Induced Lift of V/STOL Aircraft Employing Rectangular Jets
Author:
Publisher:
Total Pages: 0
Release: 1981
Genre:
ISBN:

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An empirical method has been developed to predict the propulsive-induced forces on a V/STOL aircraft hovering in proximity of the ground. This method is applicable to configurations employing two, three, or four rectangular exhausts. Planform contour, nozzle pressure ratio, and lift improvement devices are considered. Accuracies on the order of one percent of propulsive thrust are demonstrated. (Author).


Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports
Author:
Publisher:
Total Pages: 1282
Release: 1982
Genre: Aeronautics
ISBN:

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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.


Recent Advances in Aerodynamics

Recent Advances in Aerodynamics
Author: Anjaneyulu Krothapalli
Publisher: Springer Science & Business Media
Total Pages: 752
Release: 2012-12-06
Genre: Science
ISBN: 1461249724

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The Joint Institute for Aeronautics and Acoustics at Stanford University was established in October 1973 to provide an academic environment for long-term cooperative research between Stanford and NASA Ames Research Center. Since its establishment, the In stitute has wnducted theoretical and experimental work in the areas of aerodynamics, acoustics, fluid mechanics, flight dynamics, guid ance and control, and human factors. This research has involved Stanford faculty, research associates, graduate students, and many distinguished visitors in collaborative efforts with the research staff of NASA Ames Research Center. The occasion of the Institute's tenth anniversary was used to reflect back on where that research has brought us, and to consider where our endeavors should be directed next. Thus, an International Symposium was held to review recent advances in the fields relevant to the activities of the Institute and to discuss the areas of research to be undertaken in the future. This anniversary was also chosen a.."1 an opportunity to honor one of the Institute's founders and its di rector, Professor Krishnamurty Karamcheti. It has been his creative inspiration that has provided the ideal research environment at the Joint Institute. The International Symposium on Recent Advances in Aero dynamics and Aconstics was held at Stanford University, Stanford, California, U.S.A., August 22-26, 198:~. Thirty-five distinguished scientists were invited to present a comprehensive review on the fol lowing subject areas: unsteady aerodynamics, jets and shear layers, V /STOL aircraft aerodynamics, rotor dynamics and aerodynamics,.


Government Reports Annual Index

Government Reports Annual Index
Author:
Publisher:
Total Pages: 1010
Release: 1982
Genre: Research
ISBN:

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Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.


The Effect of Ground Proximity on the Lateral/Directional Aerodynamic and Control Characteristics of a Tilt-Wing V/STOL Aircraft at High Lift Coefficients

The Effect of Ground Proximity on the Lateral/Directional Aerodynamic and Control Characteristics of a Tilt-Wing V/STOL Aircraft at High Lift Coefficients
Author: H. C Curtiss (Jr)
Publisher:
Total Pages: 165
Release: 1973
Genre:
ISBN:

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A series of experiments was performed in the Princeton Dynamic Model Track to determine the lateral/directional stability and control of a V/STOL type aircraft in ground proximity. Of primary interest were the characteristics associated with flight at high lift coefficients and utilizing high wing incidences with large flap deflections as may be encountered during STOL operations in landings and take-offs where the full or maximum effects of ground proximity are encountered. The configurations tested included combinations of wing incidence and flap deflection up to a maximum of 60 degrees.