要約

Some data of experimental study of the wavy screen proximity effect on aerodynamic characteristics of wing are presented. The instantaneous values of the lift coefficient for the wing moving over the wavy screen are discussed. The estimates for the effects of the wave length, wavy screen height, wing aspect ratio, angle of attack and distance from the wave crests on the wing lift are given. Some experimental results for the forces and moments arising on the wing that moves over the screen at the acute angle to the wave front are presented. Mentioned results are important for understanding the dynamic characteristics of the wing-in-ground effect (WIG) crafts.