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Pressure-distributioin investigation of an N.A.C.A. 0009 airfoil with an 80-percent-chord plain flap and three tabs / by Milton B. Ames, Jr., and Richard I. Sears.
- Format:
- Book
- Government document
- Author/Creator:
- Ames, Milton B., Jr., author.
- Sears, Richard I., author.
- Series:
- Technical note (United States. National Advisory Committee for Aeronautics) ; 761.
- Technical note / National Advisory Committee for Aeronautics ; no. 761
- Language:
- English
- Subjects (All):
- Airplanes--Wings--Testing.
- Airplanes.
- Flaps (Airplanes).
- Airplanes--Control surfaces.
- Aerodynamic load.
- Physical Description:
- 1 online resource (11 pages, 23 unnumbered pages) : illustrations.
- Place of Publication:
- Washington, [D.C.] : National Advisory Committee for Aeronautics, 1940.
- Summary:
- Pressure-distribution tests of an N.A.C.A. 0009 airfoil with an 80-percent-chord plain flap and three tabs, having chords of 10, 20, and 30 percent of the flap chord, were made in the N.A.C.A. 4- by 6-foot vertical tunnel. Section data suitable for application to the design of horizontal and vertical tail surfaces were obtained.
- Resultant-pressure diagrams for the airfoil with the flap and the 20-percent-chord tab are presented. Plots are also given of increments of normal-force and hinge-moment coefficients for the airfoil, the flap, and the three tabs. A comparison of some characteristic slopes for the 30-, the 50-, and the 80-percent-chord flaps, tested in the general investigation of plain flaps for control surfaces, is included. Section aerodynamic and load data have been made available for a wide range of flap and tab chords to be used on an N.A.C.A. 0009 airfoil or on other conventional sections.
- Notes:
- Description based on online resource, title from title screen (viewed May 29, 2020).
- "May 1940."
- "Langley Memorial Aeronautical Laboratory."
- No Federal Depository Library Program (FDLP) item number.
- Includes bibliographical references (page 11).
- Electronic reproduction. Denton, Texas : University of North Texas, 2011. Electronic reproduction from print master produced by University of North Texas.
- Other Format:
- Print version: Ames, Milton B. Pressure-distributioin investigation of an N.A.C.A. 0009 airfoil with an 80-percent-chord plain flap and three tabs
- OCLC:
- 1156324027
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