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Book Large scale Wind tunnel Investigation of a Ducted fan    Deflected slipstream Model with an Auxiliary Wing

Download or read book Large scale Wind tunnel Investigation of a Ducted fan Deflected slipstream Model with an Auxiliary Wing written by Michael D. Falarski and published by . This book was released on 1971 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The longitudinal aerodynamic characteristics of a semispan wing dellected-slipstream configuration with a double-slotted flap and and auxiliary wing were determined. The model was powered by two low-pressure-ratio ducted fans. A comparison of static test results with results obtained from various propeller-driven configurations indicates that the turning effectiveness of fan-powered deflected-slipstream configurations can be correlated with propeller-powered configurations with the same flap-chord to slipstream-diameter ratio. The turning effectiveness of the auxiliary wing was essentially the same as would be produced by a conventional slotted flap system with the same flap-chord to slipstream-diameter ratio. The auxiliary wing reduced the thrust required at low speeds as would be expected due to the increase in lifting surface area.

Book Stability and Control Characteristics of a Large scale Deflected Slipsteam STOL Model with a Wing of 5 7 Aspect Ratio

Download or read book Stability and Control Characteristics of a Large scale Deflected Slipsteam STOL Model with a Wing of 5 7 Aspect Ratio written by V. Robert Page and published by . This book was released on 1971 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wind tunnel tests of stability and control characteristics of large scale model representative of propeller-driven STOL transport aircraft.

Book Large scale Wind tunnel Tests of an Airplane Model with an Unswept Tilt Wing of Aspect Ratio 5 5  and with Various Stall Control Devices

Download or read book Large scale Wind tunnel Tests of an Airplane Model with an Unswept Tilt Wing of Aspect Ratio 5 5 and with Various Stall Control Devices written by James A. Weiberg and published by . This book was released on 1964 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Large scale Wind tunnel Tests of Inverting Flaps on a STOL Utility Aircraft Model

Download or read book Large scale Wind tunnel Tests of Inverting Flaps on a STOL Utility Aircraft Model written by Terrell W. Feistel and published by . This book was released on 1980 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique inverting flap system has been investigated on a large-scale deflected slipstream model in the Ames 40- by 80-Foot Wind Tunnel. The subject tests utilized 33% chord double-slotted flaps on a low-aspect ratio wing that was fully immersed in the propeller slipstream. Evaluation of the flap effectiveness is aided by comparisons with the results of tests of other flap systems on the same twin propeller, twin tail boom STOL utility aircraft mode. No extreme or abrupt force or moment increments were encountered when the flaps were deflected through a wide range, corresponding to the complete retraction/extension spectrum. The lift and descent capability of the inverting flaps compared very favorably with that of the other flap systems that have been tested on this model, including some with much greater mechanical complexity. As expected, the flaps caused large nose-down pitching-moment increments at the high lift settings; however, the trimmed characteristics are still competitive with those obtained from the more complicated flap systems. It is believed that these flaps may have promising potential application to the design of relatively simple STOL utility aircraft with improved performance capabilities. In addition, they may merit consideration as retrofits to existing aircraft with less effective flap systems. (Author).

Book NASA Technical Note

    Book Details:
  • Author :
  • Publisher :
  • Release : 1971
  • ISBN :
  • Pages : 204 pages

Download or read book NASA Technical Note written by and published by . This book was released on 1971 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Large scale Wind tunnel Tests of an Airplane Model with an Unswept  Tilt Wing of Aspect Ratio 5 5  and with Four Propellers and Blowing Flap

Download or read book Large scale Wind tunnel Tests of an Airplane Model with an Unswept Tilt Wing of Aspect Ratio 5 5 and with Four Propellers and Blowing Flap written by NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON D C. and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tests were made of a large-scale tilt-wing deflected-slipstream VTOL airplane with blowingtype BLC trailing-edge flaps. The model was tested with flap deflections of 0 degrees without BLC, 50 degrees with and without BLC, and 80 degrees with BLC for wing-tilt angles of 0, 30, and 50 degrees. Included are results of tests of the model equipped with a leading-edge flap and the results of tests of the model in the presence of a ground plane. (Author).

Book Large scale Wind tunnel Tests of an Airplane Model with an Unswept  Tilt Wing of Aspect Ration 5 5  and with Four Propellers and Blowing Flaps

Download or read book Large scale Wind tunnel Tests of an Airplane Model with an Unswept Tilt Wing of Aspect Ration 5 5 and with Four Propellers and Blowing Flaps written by James A. Weiberg and published by . This book was released on 1961 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Large scale Wind tunnel Tests of Descent Performance of an Airplane Model with a Tilt Wing and Differential Propeller Thrust

Download or read book Large scale Wind tunnel Tests of Descent Performance of an Airplane Model with a Tilt Wing and Differential Propeller Thrust written by Wallace H. Deckert and published by . This book was released on 1964 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tests were conducted to determine the wing stall, performance, and longitudinal stability and control characteristics of a large model of a V/STOL tilt-wing transport aircraft. The scope of the tests was limited primarily to the low-speed transitional regime.

Book Monthly Catalog of United States Government Publications

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 1968 with total page 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

Book Scientific and Technical Aerospace Reports

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1974 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Large scale Wind tunnel Investigation of an Airplane Model with a Tilt Wing of Aspect Ratio 8 4  and Four Propellers  in the Presence of a Ground Plane

Download or read book Large scale Wind tunnel Investigation of an Airplane Model with a Tilt Wing of Aspect Ratio 8 4 and Four Propellers in the Presence of a Ground Plane written by Stanley O. Dickinson and published by . This book was released on 1968 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book NASA Scientific and Technical Reports

Download or read book NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration Scientific and Technical Information Division and published by . This book was released on with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: