Item Details

Full-Scale Wind-Tunnel Investigation on Effects of Slot Spoilers on the Aerodynamic Characteristics of a Light Twin-Engine Airplane

by Harry A. Verstynen, Jr., and Dominick Andrisani II
Format
Book; Government Document; Online; EBook
Published
Washington, D.C. : National Aeronautics and Space Administration ; [Springfield, Va. : For sale by the National Technical Information Service], 1973.
Language
English
Series
NASA Technical Note
Summary
A wind-tunnel investigation has been conducted to determine the effects of slot spoilers on the longitudinal and lateral aerodynamic characteristics of a full-scale mockup of a light twin-engine airplane. The slots were located along the leading edge of the flaps and were used to modulate the flap-induced lift as a possible means of achieving direct lift control. The data showed that the slots were effective in spoiling up to 61 percent of the flap-induced lift, but that an adverse pitching-moment change (nose up) accompanied opening the slots. Opening the slots was found to decrease slightly the downwash angle at the tail and to increase slightly the longitudinal stability of the model.
Description
34 p. : ill. ; 27 cm.
Mode of access: Internet.
Notes
  • Prepared at Langley Research Center.
  • Cover title.
  • Bibliography: p. 8.
Series Statement
NASA technical note ; NASA TN D-7315
Logo for Copyright Not EvaluatedCopyright Not Evaluated
Technical Details

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    a| Full-scale wind-tunnel investigation on effects of slot spoilers on the aerodynamic characteristics of a light twin-engine airplane c| by Harry A. Verstynen, Jr., and Dominick Andrisani II.
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    a| Washington, D.C. : b| National Aeronautics and Space Administration ; a| [Springfield, Va. : b| For sale by the National Technical Information Service], c| 1973.
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    a| 34 p. : b| ill. ; c| 27 cm.
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    a| NASA technical note ; v| NASA TN D-7315
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    a| Prepared at Langley Research Center.
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    a| Cover title.
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    a| Bibliography: p. 8.
    520
      
      
    a| A wind-tunnel investigation has been conducted to determine the effects of slot spoilers on the longitudinal and lateral aerodynamic characteristics of a full-scale mockup of a light twin-engine airplane. The slots were located along the leading edge of the flaps and were used to modulate the flap-induced lift as a possible means of achieving direct lift control. The data showed that the slots were effective in spoiling up to 61 percent of the flap-induced lift, but that an adverse pitching-moment change (nose up) accompanied opening the slots. Opening the slots was found to decrease slightly the downwash angle at the tail and to increase slightly the longitudinal stability of the model.
    538
      
      
    a| Mode of access: Internet.
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    0
    a| Private planes.
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    a| Aerodynamics.
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    0
    a| Spoilers (Airplanes)
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    a| Andrisani, Dominick.
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    a| United States. b| National Aeronautics and Space Administration.
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    a| Langley Research Center.
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    b| UIU c| UIUC d| 20141113 s| google u| uiug.30112106885715 y| 1973 r| pd q| bib

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