Charts for estimation of the characteristics of a helicopter rotor in forward flight I: profile drag-lift ratio for untwisted rectangular blades

One of 257 reports in the series: NACA Advanced Confidential Reports available on this site.

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Description

Report presenting charts showing the rotor profile drag-lift ratio for a helicopter rotor operating in forward flight and having hinged rectangular untwisted blades. The charts are given for a range of power input covering glides, level flight, and moderate rates of climb. A drag curve was used for preparing the charts, and the curve is compared with experimental curves for typical airfoils.

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[25] p.

Creation Information

Bailey, F. J., Jr. August 1944.

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This report is part of the collection entitled: National Advisory Committee for Aeronautics Collection and one other and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 453 times , with 12 in the last month . More information about this report can be viewed below.

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Description

Report presenting charts showing the rotor profile drag-lift ratio for a helicopter rotor operating in forward flight and having hinged rectangular untwisted blades. The charts are given for a range of power input covering glides, level flight, and moderate rates of climb. A drag curve was used for preparing the charts, and the curve is compared with experimental curves for typical airfoils.

Physical Description

[25] p.

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  • Accession or Local Control No: 93R22373
  • URL: http://hdl.handle.net/2060/19930093083 External Link
  • Report No.: NACA-WR-L-110
  • Report No.: NACA-ACR-L4H07
  • Center for AeroSpace Information Number: 19930093083
  • Archival Resource Key: ark:/67531/metadc61833

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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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Creation Date

  • August 1944

Added to The UNT Digital Library

  • Nov. 17, 2011, 5:13 p.m.

Description Last Updated

  • April 13, 2018, 11:49 a.m.

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Bailey, F. J., Jr. Charts for estimation of the characteristics of a helicopter rotor in forward flight I: profile drag-lift ratio for untwisted rectangular blades, report, August 1944; (digital.library.unt.edu/ark:/67531/metadc61833/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.