Abstract
Five different aerofoil models under strong ground effect, each of them having different wing profile but with the same aspect-ratio are tested in the Low Turbulence Wind Tunnel at the Institute of Fluid Science, Tohoku University. It is important to develop and select new wing sections available for WIG-vehicles which runs very close to ground surface so that strong ground effect is utilized and sufficient stability is obtained. Angle of attack and clearance height between the trailing edge and the ground plate are varied. Result of the influence of ground clearance and angle of attack for lift, drag, and moment is reported.
