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The Theory of Contra-Vanes Applied to the Propeller
| Author: | Betz, Albert |
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| Year: | 1939 |
| Document Type: | N/A |
| Series: | NACA Technical Memorandums |
| Report Number: | NACA-TM-909 |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc63243/ |
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