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Calculation of Counterrotating PropellersA method for calculation of a counterrotating propeller which is similar to Walchner's method for calculation of the single propeller in the free air stream is developed and compared with measurements. Several dimensions which are important for the design are given end simple formulas for the gain in efficiency derived. Finally a survey of the behavior of the propeller for various operating conditions is presented.
Document ID
20050242059
Acquisition Source
Headquarters
Document Type
Other - NACA Technical Memorandum
Authors
Ginzel, F. (Zentrale fuer Wissenschaftliches Berichtswesen Berlin, Germany)
Date Acquired
August 23, 2013
Publication Date
March 1, 1949
Publication Information
Publication: ZWB Forschungsbericht Nr. 1752
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
NACA-TM-1208
Report Number: NACA-TM-1208
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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