The hydrodynamic characteristics of the canvas kite - 2. The characteristics of the triangular canvas kite -

As far as an opening device of fishing gears is concerned, applications of a kite are under development around the world. The typical examples are found in the opening device of the stow net on anchor and the buoyancy material of the trawl. While the stow net on anchor has proved its capability for the past 20 years, the trawl has not been wildly used since it has been first introduced for the commercial use only without sufficient studies and thus has revealed many drawbacks. Therefore, the fundamental hydrodynamics of the kite itself need to ne studied further. Models of plate and canvas kite were deployed in the circulating water tank for the mechanical test. For this situation lift and drag tests were performed considering a change in the shape of objects, which resulted in a different aspect ratio of rectangle and trapezoid. The results obtained from the above approaches are summarized as follows, where aspect ratio, attack angle, lift coefficient and maximum lift coefficient are denoted as A, B, and respectively : 1. Given the triangular plate, was produced as 1.261.32 with A1 and 38B42. And when A1.5 and 20B50, was around 0.85. Given the inverted triangular plate, was 1.461.56 with A1 and 36B38. And When A1.5 and 22B26, was 1.051.21. Given the triangular kite, was produced as 1.671.77 with A1 and 46B48. And when A1.5 and 20B50, was around 1.10. Given the inverted triangular kite, was 1.441.68 with A1 and 28B32. And when A1.5 and 18B24, was 1.031.18. 2. For a model with A