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Wind-tunnel investigation at Mach numbers from 0.25 to 1.01 of a transport configuration designed to cruise at near-sonic speedsThe results of the investigation showed that the configuration exhibits a sufficiently high drag divergence Mach number to cruise at near sonic speeds. The configuration is longitudinally stable through the cruise Mach number and lift coefficient range, but at higher lift coefficients displays pitchup and becomes unstable. The configuration was directionally stable at all test conditions and laterally stable in the angle of attack range required for cruise.
Document ID
19810010499
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Langhans, R. A. (NASA Langley Research Center Hampton, VA, United States)
Flechner, S. G. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 4, 2013
Publication Date
August 1, 1972
Subject Category
Aerodynamics
Report/Patent Number
NASA-TM-X-2622
L-8226
Report Number: NASA-TM-X-2622
Report Number: L-8226
Accession Number
81N19025
Funding Number(s)
PROJECT: RTOP 505-15-01-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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