Profile-Drag Coefficients of Conventional and Low-Drag Airfoils as Obtained in Flight

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Description

"The results of flight investigations of the profile drag of several carefully finished conventional and low-drag airfoils are presented. The results indicated that in all cases lower profile-drag coefficients were obtained with the low-drag than with the conventional airfoils over the range of lift coefficient tested and that, for comparable conditions of lift coefficient and Reynolds number, the low-drag airfoils may have profile-drag coefficients which are at least 27 percent lower than the profile-drag coefficients of the conventional airfoils" (p.1).

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12 p. : ill.

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Zalovcik, John A. May 1944.

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This report is part of the collection entitled: National Advisory Committee for Aeronautics Collection and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 202 times, with 4 in the last month. More information about this report can be viewed below.

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"The results of flight investigations of the profile drag of several carefully finished conventional and low-drag airfoils are presented. The results indicated that in all cases lower profile-drag coefficients were obtained with the low-drag than with the conventional airfoils over the range of lift coefficient tested and that, for comparable conditions of lift coefficient and Reynolds number, the low-drag airfoils may have profile-drag coefficients which are at least 27 percent lower than the profile-drag coefficients of the conventional airfoils" (p.1).

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12 p. : ill.

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  • Accession or Local Control No: 78N78515
  • URL: http://hdl.handle.net/2060/19780078522 External Link
  • Report No.: NACA-ACR-L4E31
  • Report No.: L-139
  • Report No.: NASA-TM-79837
  • Center for AeroSpace Information Number: 19780078522
  • Archival Resource Key: ark:/67531/metadc279640

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National Advisory Committee for Aeronautics Collection

The National Advisory Committee for Aeronautics (NACA) was a U.S. federal agency founded on March 3, 1915 to undertake, promote, and institutionalize aeronautical research. On October 1, 1958 the agency was dissolved, and its assets and personnel transferred to the newly created National Aeronautics and Space Administration (NASA).

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  • May 1944

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  • March 30, 2014, 6 p.m.

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  • Aug. 9, 2018, 9:07 a.m.

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Zalovcik, John A. Profile-Drag Coefficients of Conventional and Low-Drag Airfoils as Obtained in Flight, report, May 1944; (https://digital.library.unt.edu/ark:/67531/metadc279640/: accessed April 14, 2021), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.