Wind-Tunnel Investigation of Control-Surface Characteristics. 15 - Various Contour Modifications of a 0.30-Airfoil-Chord Plain Flap on an NACA 66(215)-014 Airfoil
Abstract
Aerodynamic section characteristics for several flap deflections and for sealed and unsealed gap at the flap nose are presented for true-contour, straight-contour, and beveled trailing edge flaps. Slope of lift curve, flap effectiveness, and negative slope of hinge-moment curves decreased as the trailing edge angle increased, as the flap nose gap was opened, and as roughness was added to the leading edge. Movement of the center of lift caused by changing flap deflections depended on the type of flap used.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1943
- Accession Number
- ADA800864
Entities
People
- John M. Riebe
- Paul E. Purser
Organizations
- Langley Research Center