The additional air pressure underneath the aircraft at altitudes below half the wingspan adds extra lift, and you also get a corresponding reduction in lift-induced drag. The ground effect ...

Ground effect is created when wingtip vortices and downwash are disrupted due to the proximity to the ground. This, in turn, leads to lower induced drag which increases the plane's speed and lift ...

The ground-effect (GE) refers to the almost mystical ... increases efficiency due to the reduction of lift-dependent drag, perhaps best demonstrated by the Soviet Lun-class “ekranoplans ...

This is known as induced drag. Wing shape can be designed to minimise this effect, for example, the beautiful elliptical wings of the second world war Spitfire fighter plane. Winglets, on the ...

DARPA has launched a new "Liberty Lifter" program to design, build and test a highly-efficient wing-in-ground effect aircraft ... lift while reducing lift-induced drag. This can make these things ...