Static Internal Performance Of An Axisymmetric Nozzle With Multiaxis Thrust Vectoring Capability

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Static Performance of an Axisymmetric Nozzle with Post-Exit Vanes for Multiaxis Thrust Vectoring

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 52 pages
File Size : 53,8 Mb
Release : 2018-07-16
Category : Electronic
ISBN : 1722772212

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Static Performance of an Axisymmetric Nozzle with Post-Exit Vanes for Multiaxis Thrust Vectoring by National Aeronautics and Space Administration (NASA) Pdf

An investigation was conducted in the static test facility of the Langley 16-Foot Transonic Tunnel to determine the flow-turning capability and the nozzle internal performance of an axisymmetric convergent-divergent nozzle with post-exit vanes installed for multiaxis thrust vectoring. The effects of vane curvature, vane location relative to the nozzle exit, number of vanes, and vane deflection angle were determined. A comparison of the post-exit-vane thrust-vectoring concept with other thrust-vectoring concepts is provided. All tests were conducted with no external flow, and nozzle pressure ratio was varied from 1.6 to 6.0. Berrier, Bobby L. and Mason, Mary L. Langley Research Center...

Initial Flight Test Evaluation of the F-15 ACTIVE Axisymmetric Vectoring Nozzle Performance

Author : John S. Orme
Publisher : Unknown
Page : 26 pages
File Size : 43,5 Mb
Release : 1998
Category : Black Widow (Night fighter plane)
ISBN : NASA:31769000627862

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Initial Flight Test Evaluation of the F-15 ACTIVE Axisymmetric Vectoring Nozzle Performance by John S. Orme Pdf

A full envelope database of a thrust-vectoring axisymmetric nozzle perfomance for the Pratt & Whitney Pitch/Yaw Balance Beam Nozzle (P/YBBN) is being developed using the F-15 Advanced Control Technology for Integrated Vehicles (ACTIVE) aircraft. At this time, flight research has been completed for steady-state pitch vector angles up to 20 deg. at an altitude of 30,000 ft from low power settings to maximum afterburner power. The nozzle performance database includes vector forces, internal nozzle pressures, and temperatures all of which can be used for regression analysis modeling. The database was used to substantiate a set of nozzle performance data from wind tunnel testing and computational fluid dynamic analyses. Findings from initial flight research at Mach 0.9 and 1.2 are presented in this paper. The results show that vector efficiency is strongly influenced by power setting. A significant discrepancy in nozzle performance has been discovered between predicted and measured results during vectoring.

NASA Technical Paper

Author : Anonim
Publisher : Unknown
Page : 90 pages
File Size : 54,7 Mb
Release : 1992
Category : Science
ISBN : STANFORD:36105024801313

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NASA Technical Paper by Anonim Pdf

NASA Technical Paper

Author : United States. National Aeronautics and Space Administration
Publisher : Unknown
Page : 432 pages
File Size : 43,5 Mb
Release : 1990
Category : Aeronautics
ISBN : UOM:39015022363397

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NASA Technical Paper by United States. National Aeronautics and Space Administration Pdf

NASA Technical Memorandum

Author : Anonim
Publisher : Unknown
Page : 180 pages
File Size : 44,7 Mb
Release : 1992
Category : Aeronautics
ISBN : MINN:31951P00297769K

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NASA Technical Memorandum by Anonim Pdf