During the last few years there has been an increasing interest in a high-lift wing configuration known as the flex-wing, or parawing. The parawing consists basically of a flexible membrane such as cloth, attached to two leading edges (or booms) and a keel as shown in Figure 1. At angles of attack (𝛂) greater than the billowing angle (𝜷). the air impinges on the under side of the membrane and forces it into a double-arch shape at each cross-section. When straight leading edges are used, each arch approximates the shape of a conical section. A cylindrical section is obtained by giving the leading edge a circular arch shape as seen from head on
College and Department
BYU ScholarsArchive Citation
Merrell, Calvin J., "The Investigation and Design of a Powered, Single-Man Parawing Aircraft" (1965). Theses and Dissertations. 7156.
Airplanes — Design and construction