Download or read book Installation Effects of Wing mounted Turbofan Nacelle pylons on a 1 17 Scale Twin engine Low wing Transport Model written by and published by . This book was released on 1992 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Installation Effects of Wing Mounted Turbofan Nacelle Pylons on a 1 17 Scale Twin Engine Low Wing Transport Model written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-18 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: A twin-engine, low-wing transport model, with a supercritical wing of aspect ratio 10.8 designed for a cruise Mach number of 0.77 and a lift coefficient of 0.55, was tested in the Langley 16-Foot Transonic Tunnel. The purpose of this test was to compare the wing-nacelle interference effects of flow-through nacelles simulating superfan engines (very high bypass ratio (BPR is approx. = 18) turbofan engines) with the wing-nacelle interference effects of current-technology turbofans (BPR is approx. = 6). Forces and moments on the complete model were measured with a strain-gage balance, and extensive external static-pressure measurements (383 orifice locations) were made on the wing, nacelles, and pylons of the model. Data were taken at Mach numbers from 0.50 to 0.80 and at model angles of attack from -4 deg to 8 deg. Test results indicate that flow-through nacelles with a very high bypass ratio can be installed on a low-wing transport model with a lower installation drag penalty than for a conventional turbofan nacelle at a design cruise Mach number of 0.77 and lift coefficient of 0.55. Pendergraft, Odis C., Jr. and Ingraldi, Anthony M. and Re, Richard J. and Kariya, Timmy T. Langley Research Center AERODYNAMIC INTERFERENCE; BYPASS RATIO; INTERACTIONAL AERODYNAMICS; SUPERCRITICAL WINGS; TURBOFAN ENGINES; TURBOFANS; WING NACELLE CONFIGURATIONS; AERODYNAMIC COEFFICIENTS; ASPECT RATIO; COMPUTERIZED SIMULATION; STATIC PRESSURE; TRANSONIC WIND TUNNELS...
Download or read book Installation Effects of Wing mounted Turbofan Nacelle pylons on a 1 17 Scale Twin engine Low wing Transport Model written by and published by . This book was released on 1992 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Installation Effects of Wing mounted Turbofan Nacelle pylons on a 1 17 scale Twin engine Low wing Transport Model written by and published by . This book was released on 1992 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Installation Effects of Wing mounted Turbofan Nacelle pylons on a 1 17 Scale Twin engine Low wing Transport Model written by Odis C. Pendergraft and published by . This book was released on 1992 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Effect of Pylon Cross sectional Geometries on Propulsion Integration for a Low wing Transport written by Anthony M. Ingraldi and published by . This book was released on 1993 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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