FIELD: air transport dynamically supported by air cushion.
SUBSTANCE: proposed ground-effect craft has body with tail unit, one or several engines mounted in body, propeller and low-aspect ratio wing of convexo-concave profile. Propellers are mounted in ring in front of wing. Wing profile has relative curvature ranging from 1 to 20% at relative thickness ratio of 0.5-8%. Leading edge of wing has width equal to 0.1-5% of chord length and is mounted at zero angle of attack. Due to low thickness ratio of wing profile, curvature of profile may be reduced and ground effect may be increased, thus enhancing aerodynamic efficiency together with inflating under wing from tractor-type propeller.
EFFECT: enhanced aerodynamic efficiency.
5 dwg
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