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Theoretical analysis of aerodynamic characteristics of two helicopter rotor airfoilsAn analytical study was conducted to predict the aerodynamic characteristics of two helicopter rotor airfoils. Documentation of the predictive process covers the development of empirical factors used in conjunction with computer programs for airfoil analysis. Tables of lift, drag, and pitching-moment coefficient for each airfoil were prepared for two dimensional, steady flow conditions at Mach numbers from 0.3 to 0.9 and Reynolds numbers of 7,700,000 to 23,000,000, respectively.
Document ID
19780012132
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Morris, C. E. K., Jr. (NASA Langley Research Center Hampton, VA, United States)
Yeager, W. T., Jr. (USARTL Hampton, Va., United States)
Date Acquired
September 3, 2013
Publication Date
March 1, 1978
Subject Category
Aerodynamics
Report/Patent Number
NASA-TM-78680
Report Number: NASA-TM-78680
Accession Number
78N20075
Funding Number(s)
PROJECT: RTOP 505-10-23-07
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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