The earliest, albeit unintentional, use of the ground effect in technology is probably due to the Wright brothers whose gliders covered longer distances when flying close to the sands. Later, in 1910
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Wings in Ground Effect: Ekranoplans and WIG Craft
Ground-effect vehicle - Wikipedia
PDF) Experimental Investigation of a Wing-in-Ground Effect Craft
Wing-in-ground effect vehicles - ScienceDirect
a louvered wing ground effect wing craft
PDF] Experimental Investigation of a Wing-in-Ground Effect Craft
Wing-in-ground effect vehicles - ScienceDirect
Typical wing arrangements of the wing in the ground effect craft [3]
Aerospace, Free Full-Text
Wings in Ground Effect: Ekranoplans and WIG Craft
But is it an aircraft? FAA undecided on critical question as Regent seeks 'seaglider' guidance, Analysis