A LIFTING SURFACE THEORY FOR WINGS AT NGLES OF ATTACK EXTENDING THROUGH INCLINED JETS,
Abstract
The third part of the three part High Angle of Attack Theory is presented. The preceding two parts have been published as VRC Report No. 9. The three parts comprise Phase III of VRC's program of developing methods for assessing the non-uniform flow fields of wing-propeller slip stream aerodynamics. This effort consists of the following three parts: (1) wings at various heights in the jet; (2) highly cambered wings as used in deflected slipstream V/STOL arrangements; and (3) tilt wing configurations where the jet is inclined to the free stream flow. Analytical evaluation is presented of the complex flow field encountered by tilt-wing V/STOL aircraft (Vertol 76, Hiller X-18, Tri-Service XC-142, etc.). The analysis provides methods for determining the spanwise life distribution and induced drag of such aircraft. It thus provides a tool for determining tilt wing arrangements of maximum lift and minimum induced drag. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 21, 1963
- Accession Number
- AD0426715
Entities
People
- T. Yaotsu