PRELIMINARY STUDY OF HOVER PERFORMANCE OF A RAM-WING GEM
Abstract
The results of hover tests of a rectangular planform ram-wing ground-effect machine, utilizing wing-tip jets and leading-edge and trailingedge flaps are presented. Several parameters were studied to determine optimum configurations for future ram-wing designs. The effects ofASPECT RATIO, FLAP CHORD LENGTH, FLAP DEFLECTION ANGLE, AND JET NOZZLE ANGLE WERE INVESTIGATED. The results are presented as plots of augmentation factor versus ground proximity parameter. The results obtained indicate that for the configurations tested, the largest aspect ratio, the smallest flap chord length, and the smallest flap deflection angle give the lowest value of ground proximity parameter for a given augmentation. The optimum jet nozzle angle is between -60 and -72 degrees. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1962
- Accession Number
- AD0290729
Entities
People
- Gerald R. Barlow
- Richard G. Huntington