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A preliminary investigation of a new method for testing aerofoils in free flight / by F.H. Norton.
- Format:
- Book
- Government document
- Author/Creator:
- Norton, F. H. (Frederick Harwood), 1896-1992, author.
- Series:
- Technical note (United States. National Advisory Committee for Aeronautics) ; 77.
- Technical notes / National Advisory Committee for Aeronautics ; No. 77
- Language:
- English
- Subjects (All):
- Aerofoils--Testing.
- Aerofoils.
- Measuring instruments.
- Physical Description:
- 1 online resource (11 pages, 2 unnumbered pages) : illustrations.
- Place of Publication:
- [Washington, D.C.] : National Advisory Committee for Aeronautics, 1922.
- Summary:
- This report is a description of a new method of testing aerofoils in free flight devised by the National Advisory Committee for Aeronautics. The method consists in lowering below a flying airplane a large inverted aerofoil on three small steel wires in such a way that the lift on the aerofoil always keeps the wires tight. The resultant force is measured by the tension in the wires, and the direction of the resultant by the amount the wing trails backwards. This investigation indicates that by the use of suitable recording apparatus aerofoils may be accurately and conveniently tested at a Reynolds number, a velocity and a degree of turbulence, comparable with that of a full-sized airplane. Satisfactory experiments were also made in trailing a sphere and a streamlined body on single wires.
- Notes:
- Title from title screen (viewed July 1, 2019).
- "January, 1922."
- "Langley Memorial Aeronautical Laboratory, National Advisory Committee for Aeronautics, Langley Field, Va."
- No Federal Depository Library Program (FDLP) item number.
- Electronic reproduction. Denton, Texas : University of North Texas, 2011. Electronic reproduction from print master produced by University of North Texas.
- Other Format:
- Print version: Norton, F. H. A Preliminary investigation of a new method for testing aerofoils in free flight
- OCLC:
- 1107323818
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