NDLI: The results of low-speed wind tunnel tests to investigate the effects of the nasa refan jt8d engine nacelles on the stability and control characteristics of the boeing 727-200

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The results of low-speed wind tunnel tests to investigate the effects of the nasa refan jt8d engine nacelles on the stability and control characteristics of the boeing 727-200

Content Provider	NASA Technical Reports Server (NTRS)
Author	Shirkey, M. D.
Copyright Year	1973
Description	The results from two low-speed wind tunnel tests of the Boeing 727-200 airplane as configured with the NASA refan JT8D-109 turbofan engines are presented. The objective of these tests was to determine the effects of the refan installation on the low-speed stability and control characteristics of the 727 airplane. Four side nacelle locations were tested to insure that aerodynamic interactions of the nacelles and empennage would be optimized. The optimum location was judged to be the same as that of the production JT8D-9 engines; the current production engine mounts can be used for this location. Some small changes in the basic airplane characteristics are attributable to the refan nacelles. The flaps up longitudinal and lateral-directional stability are both slightly increased for low angles of attack and sideslip respectively. The longitudinal stability at stall is improved for both the flaps up and landing flap configurations. The high attitude characteristics of the basic airplane are not significantly altered by the refan nacelle installation. Directional control capability is not affected by the refan nacelles.
File Size	1731070
Page Count	30
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19740003695
Archival Resource Key	ark:/13960/t5p89232p
Language	English
Publisher Date	1973-10-01
Access Restriction	Open
Subject Keyword	Aerodynamics Aircraft Stability Acoustic Properties Aerodynamic Configurations Engine Noise Noise Reduction Aircraft Noise Boeing 727 Aircraft Wind Tunnel Tests Aircraft Performance Turbofan Engines Aircraft Control Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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