Effects of compressibility on rotor hovering performance and synthesized blade-section characteristics derived from measured rotor performance of blades having NACA 0015 airfoil tip sections

One of 4,120 reports in the series: NACA Technical Notes available on this site.

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Description

Report presenting an investigation to determine the low tip Mach number blade maximum mean lift coefficients and the high tip Mach number effects of compressibility for rotor blades with NACA 0015 tip airfoil sections. The characteristics of this rotor was similar to those from other investigations, which is that at low Mach numbers, there is a stable pitching moment past rotor-blade drag divergence. Results regarding hovering performance, synthesized rotor-blade section characteristics, rotor-blade pitching moments, rotor-blade profile-drag torque, comparison of profile-drag torque ratios, and a comparison of experimental and two-dimensional drag-divergence characteristics are provided.

Physical Description

28 p. : ill.

Creation Information

Shivers, James P. & Carpenter, Paul J. September 1958.

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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 806 times , with 13 in the last month . More information about this report can be viewed below.

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  • Main Title: Effects of compressibility on rotor hovering performance and synthesized blade-section characteristics derived from measured rotor performance of blades having NACA 0015 airfoil tip sections
  • Series Title: NACA Technical Notes

Description

Report presenting an investigation to determine the low tip Mach number blade maximum mean lift coefficients and the high tip Mach number effects of compressibility for rotor blades with NACA 0015 tip airfoil sections. The characteristics of this rotor was similar to those from other investigations, which is that at low Mach numbers, there is a stable pitching moment past rotor-blade drag divergence. Results regarding hovering performance, synthesized rotor-blade section characteristics, rotor-blade pitching moments, rotor-blade profile-drag torque, comparison of profile-drag torque ratios, and a comparison of experimental and two-dimensional drag-divergence characteristics are provided.

Physical Description

28 p. : ill.

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Identifier

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  • Accession or Local Control No: 93R14555
  • URL: http://hdl.handle.net/2060/19930085265 External Link
  • Report No.: NACA-TN-4356
  • Center for AeroSpace Information Number: 19930085265
  • Archival Resource Key: ark:/67531/metadc57445

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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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This selection of materials from the Technical Report Archive and Image Library (TRAIL) includes hard-to-find reports published by various government agencies. The technical publications contain reports, images, and technical descriptions of research performed for U.S. government agencies. Topics range from mining, desalination, and radiation to broader physics, biology, and chemistry studies. Some reports include maps, foldouts, blueprints, and other oversize materials.

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Creation Date

  • September 1958

Added to The UNT Digital Library

  • Nov. 17, 2011, 10:13 p.m.

Description Last Updated

  • April 16, 2018, 11:50 a.m.

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Shivers, James P. & Carpenter, Paul J. Effects of compressibility on rotor hovering performance and synthesized blade-section characteristics derived from measured rotor performance of blades having NACA 0015 airfoil tip sections, report, September 1958; (digital.library.unt.edu/ark:/67531/metadc57445/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.