The aerodynamic characteristics of six full-scale propellers having different airfoil sections

@inproceedings{Biermann1939TheAC,
  title={The aerodynamic characteristics of six full-scale propellers having different airfoil sections},
  author={David Biermann and Edwin P. Hartman},
  year={1939}
}
From Summary: "Wind-tunnel tests are reported of six 3-blade 10-foot propellers operated in front of a liquid-cooled engine nacelle. The propellers were identical except for blade airfoil sections, which were: Clark y, R.A.F. 6, NACA 4400, NACA 2400-34, NACA 2rsub200, and NACA 6400. The range of blade angles investigated extended for 15 degrees to 40 degrees for all propellers except the Clark y, for which it extended to 45 degrees. The results showed that the range in maximum efficiency… CONTINUE READING

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Te t already reported on the effect of compres ibility indicate that no correction need be applied to the maximum efficiency of the present results for tip- peed values of V/Ve up

Freeman, B Hugh
  • REF ERE CES 1. Stack, J ohn: The N. A. C. A. High- peed Wind Tunnel and Tests of Six Propeller Sections
  • 1933