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Design and experimental results for a flapped natural-laminar-flow airfoil for general aviation applicationsA flapped natural laminar flow airfoil for general aviation applications, the NLF(1)-0215F, has been designed and analyzed theoretically and verified experimentally in the Langley Low Turbulence Pressure Tunnel. The basic objective of combining the high maximum lift of the NASA low speed airfoils with the low cruise drag of the NACA 6 series airfoils has been achieved. The safety requirement that the maximum lift coefficient not be significantly affected with transition fixed near the leading edge has also been met. Comparisons of the theoretical and experimental results show generally good agreement.
Document ID
19830022115
Document Type
Technical Publication (TP)
Authors
Somers, D. M. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 4, 2013
Publication Date
June 1, 1981
Subject Category
Aerodynamics
Report/Patent Number
NASA-TP-1865
L-14409
NAS 1.60:1865
Accession Number
83N30386
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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