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The Minimum Induced Drag of AerofoilsThis report helps explain the phenomenon of flight. It contains some theorems concerning the arrangement of airplane wings which are of considerable practical interest. In particular, it shows the theoretical reasons for the decrease of drag which accompanies all increase in the aspect ratio or lateral extension of a wing. The efficiency of a given arrangement of wings may be calculated from the formulae derived in this paper.
Document ID
19930091456
Document Type
Other - NACA Technical Report
Authors
Munk, Max M
Date Acquired
September 6, 2013
Publication Date
January 1, 1923
Subject Category
Aerodynamics
Report/Patent Number
NACA-TR-121
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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