Spin tests of a low-lying monoplane in flight and in the free-spinning wind tunnel

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Comparative full-scale and model spin tests were made with a low-lying monoplane in order to extend the available information as to the utility of the free-spinning wind tunnel as an aid in predicting full-scale spin characteristics. For a given control disposition the model indicated steeper spins than were actually obtained with the airplane, the difference being most pronounced for spins with elevators up. Recovery characteristics for the model, on the whole, agreed with those for the airplane, but a disagreement was noted for the case of recovery with elevators held full up. Free-spinning wind-tunnel tests are a useful aid in ... continued below

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Seidman, Oscar & Mcavoy, William H July 1, 1940.

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  • Main Title: Spin tests of a low-lying monoplane in flight and in the free-spinning wind tunnel
  • Series Title: NACA Technical Notes

Description

Comparative full-scale and model spin tests were made with a low-lying monoplane in order to extend the available information as to the utility of the free-spinning wind tunnel as an aid in predicting full-scale spin characteristics. For a given control disposition the model indicated steeper spins than were actually obtained with the airplane, the difference being most pronounced for spins with elevators up. Recovery characteristics for the model, on the whole, agreed with those for the airplane, but a disagreement was noted for the case of recovery with elevators held full up. Free-spinning wind-tunnel tests are a useful aid in estimating spin characteristics of airplanes, but it must be appreciated that model results can give only general indications of full-scale behavior.

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  • : 93R10906
  • URL: http://hdl.handle.net/2060/19930081616 External Link
  • Report No.: NACA-TN-769
  • Center for AeroSpace Information Number: 19930081616
  • Archival Resource Key: ark:/67531/metadc54703

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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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  • July 1, 1940

Added to The UNT Digital Library

  • Nov. 14, 2011, 10:28 p.m.

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  • Feb. 2, 2017, 2:17 p.m.

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Seidman, Oscar & Mcavoy, William H. Spin tests of a low-lying monoplane in flight and in the free-spinning wind tunnel, report, July 1, 1940; (digital.library.unt.edu/ark:/67531/metadc54703/: accessed October 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.