Review and Preliminary Evaluation of Lifting Horizontal-Axis Rotating-Wing Aeronautical Systems (HARWAS)
Abstract
Among the purely aeronautical applications, near-horizontal axis as well as horizontal axis devices are considered. The former cover the radial-lift propeller or 'self-propelling' wing; the latter cover Magnus effect and related systems; cyclogiro systems and horizontal-axis propeller systems with cyclic pitch. A limited investigation of non-aeronautical applications of HARWAS is also made, which covers wing-rotor type windmills, cyclogiro windmill turbines, Magnus effect ship propulsion and cycloidal ship propulsion. Approximately 1200 references are listed. A series of cross-index tables is also included to provide a quick means for the reader to determine the content and availability of the references. An analysis of the various lift systems pertinent to the HARWAS field is made with a view to potential air vehicle applications. Over 20 original aeronautical applications are identified and evaluated in the light of recent advances in power plants, transmissions and lightweight structural techniques. This analysis points out the extraordinary variety of HARWAS and identifies promising new aeronautical systems. A preliminary performance and design study of two promising HARWAS concepts is also reported. The two concepts are the STOL logistics aircraft using a rotating airfoil flap and the amplified high-pitch cyclogiro for application to the composite aircraft mission.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1969
- Accession Number
- AD0857462
Entities
People
- Gabriel D. Boehler
- William F. Foshag