Wind Tunnel Investigation of the Effects of Slot Shape and Flap Location on the Characteristics of a Low-Drag Airfoil Equipped with a 0.25-Chord Slotted Flap

One of 338 reports in the series: NACA Memorandum Reports available on this site.

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Description

Tests were conducted at dynamic pressure of 50 lb per square foot with lift drag and pitch moment measurements throughout useful angle of attack range for constant flap deflection and position of a low-drag airfoil. Two slots were investigated and practical flap paths were selected for each Slot shape had a negligible effect on the maximum lift coefficient flap deflected, the rounded-entry slot had lower profile drag.

Physical Description

[54] p. : ill.

Creation Information

Holtzclaw, Ralph W. & Weisman, Yale December 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 168 times . More information about this report can be viewed below.

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  • Main Title: Wind Tunnel Investigation of the Effects of Slot Shape and Flap Location on the Characteristics of a Low-Drag Airfoil Equipped with a 0.25-Chord Slotted Flap
  • Series Title: NACA Wartime Reports
  • Series Title: NACA Memorandum Reports

Description

Tests were conducted at dynamic pressure of 50 lb per square foot with lift drag and pitch moment measurements throughout useful angle of attack range for constant flap deflection and position of a low-drag airfoil. Two slots were investigated and practical flap paths were selected for each Slot shape had a negligible effect on the maximum lift coefficient flap deflected, the rounded-entry slot had lower profile drag.

Physical Description

[54] p. : ill.

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Identifier

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  • Accession or Local Control No: 93R22100
  • URL: http://hdl.handle.net/2060/19930092810 External Link
  • Report No.: NACA-WR-A-80
  • Report No.: NACA-MR-A4L28
  • Center for AeroSpace Information Number: 19930092810
  • Archival Resource Key: ark:/67531/metadc61426

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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

  • December 1944

Added to The UNT Digital Library

  • Nov. 17, 2011, 5:13 p.m.

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  • April 2, 2018, 11:32 a.m.

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Holtzclaw, Ralph W. & Weisman, Yale. Wind Tunnel Investigation of the Effects of Slot Shape and Flap Location on the Characteristics of a Low-Drag Airfoil Equipped with a 0.25-Chord Slotted Flap, report, December 1944; (https://digital.library.unt.edu/ark:/67531/metadc61426/: accessed March 25, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.