Limitations of Lifting-Line Theory for Estimation of Aileron Hinge-Moment Characteristics
Abstract
Hinge-moment parameters for several typical ailerons were calculated from section data with the aspect-ratio correction as usually determined from lifting-line theory. The calculations showed that the agreement between experimental and calculated results was unsatisfactory. An additional aspect-ratio correction, calculated by the method of lifting-surface theory, was applied to the slope of the curve of hinge-moment coefficient against angle of attack at small angles of attack. This so-called streamline-curvature correction brought the calculated and experimental results into satisfactory agreement.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1943
- Accession Number
- ADA801563
Entities
People
- Clarence L. Gillis
- Robert S. Swanson
Organizations
- National Advisory Committee for Aeronautics