Preliminary investigation of rolling moments obtained with spoilers on both slotted and plain wings

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Description

A wind-tunnel study has been made to determine the possibility of developing spoilers suitable for providing the lateral control for airplanes in place of the usual ailerons. The first tests were made on a model wing with a fixed tip slot, but when it was found that the effectiveness of the spoilers did not depend to any great extent on the slot, tests were made on a plain wing also. In both cases certain spoiler positions were found which were free from the usual adverse rolling moments with small deflections. Five different forms of spoiler were tested, the best ones ... continued below

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Weick, Fred E. & Wenzinger, Carl J. April 1, 1932.

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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 41 times . More information about this report can be viewed below.

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  • Main Title: Preliminary investigation of rolling moments obtained with spoilers on both slotted and plain wings
  • Series Title: NACA Technical Notes

Description

A wind-tunnel study has been made to determine the possibility of developing spoilers suitable for providing the lateral control for airplanes in place of the usual ailerons. The first tests were made on a model wing with a fixed tip slot, but when it was found that the effectiveness of the spoilers did not depend to any great extent on the slot, tests were made on a plain wing also. In both cases certain spoiler positions were found which were free from the usual adverse rolling moments with small deflections. Five different forms of spoiler were tested, the best ones being simple plates, either straight or slightly curved to fit the contour of the airfoil when not deflected. Sufficient rolling moment can probably be obtained from spoilers of reasonable size to provide satisfactory lateral control for certain types of airplanes.

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  • : 93R10497
  • URL: http://hdl.handle.net/2060/19930081207 External Link
  • Report No.: NACA-TN-415
  • Center for AeroSpace Information Number: 19930081207
  • Archival Resource Key: ark:/67531/metadc54095

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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).

Technical Report Archive and Image Library

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

  • April 1, 1932

Added to The UNT Digital Library

  • Nov. 14, 2011, 7:18 p.m.

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  • Feb. 6, 2017, 6:56 p.m.

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Weick, Fred E. & Wenzinger, Carl J. Preliminary investigation of rolling moments obtained with spoilers on both slotted and plain wings, report, April 1, 1932; (digital.library.unt.edu/ark:/67531/metadc54095/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.