Wig vehicle excluding horizontal stabilizer

Abstract

The present invention relates to a WIG vehicle wing structure characterized in that in the WIG vehicle comprising a body including a fuselage, a wing unit including a main wing, and a propulsion unit including an engine, the wing unit comprises a main wing protruding out from the lateral center of the WIG vehicle fuselage, a downward wing which is vertically and downwardly installed on the outer tip of the main wing, and a canard which protrudes out horizontally from the front end of the fuselage, which is in the moving direction of the WIG vehicle from the main wing. The downward wing comprises a downward plate which is integrally and downwardly installed on the tip of the main wing, and a variable rudder which is installed to face the rear surface of the downward plate. In the lateral cross section shape, the front surface portion including the leading edge is round at a proper thickness to prevent flow separation, the thickness of a portion having the peak thickest narrows, and the trailing edge is sharp and straight. The vertical cross section of the entire downward wing is airfoil-shaped. Accordingly, the present invention is able to resolve the design problem of the horizontal stabilizer caused by a ground effect because the WIG vehicle comprises a canard for stabilizing vertical disturbance instead of a horizontal stabilizer.

Description

technical field [0001] The invention relates to a wing structure of a ground-effect wing ship, in particular to a ground-effect wing ship hull and a wing shape for forming a canard instead of a horizontal tail to form the wing structure of a ground-effect wing ship. Background technique [0002] Generally, in an aircraft and a ground effect ship, a horizontal stabilizer is used in order to suppress the vertical roll. Considering the downwash angle caused by the front main wing, the horizontal stabilizer has an appropriate size and initial angle. [0003] However, on a ground effect boat, the change in the downwash angle depends not only on artificial shapes such as the flap change of the main wing, but also on the sailing altitude. That is, at a low height, the flow tends to become parallel due to the action of the water surface, so that the size of the downwash angle becomes smaller, and at a high height, the size returns to the original value. [0004] That is, it is dif...

AI Technical Summary

Problems solved by technology

[0004] That is, it is difficult to design an appropriate horizontal tail, and, depending on the situation, unexpected instability may occur during navigation

[0005] however, no alternative to the vertical stabilizer has been developed so far

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