LIFT STABILIZATION STRUCTURE AND SLIDE PLATE OF HULL

To provide a lift stabilization structure of a hull which can stabilize lift acting on the hull with a simple, and a slide plate.SOLUTION: A lift stabilization structure 9 stabilizes lift acting on a hull 7 which supports slide plates 8A to 8C. When the hull 7 receives an obliquely upward flow F, the slide plates 8A to 8C comprises a lift increase part 10A which increases lift acting on the hull 7, and a lift reduction part 10B which reduces lift acting on the hull 7. The lift increase part 10A comprises an inclines plane 10a having a small inclination angle with a horizontal line, and the lift reduction part 10B comprises an inclined plane 10b having a large inclination angle with a horizontal line. The lift increase part 10A and the lift reduction part 10B are located along a lengthwise direction of the hull 7 at a prescribed compounding ratio. The lift increase part 10A increases lift acting on a midship part in the lengthwise direction of the hull 7, and the lift reduction part 10B reduces lift acting on both end parts in the lengthwise direction of the hull 7.SELECTED DRAWING: Figure 3 【課題】簡単な構造によって舟体に作用する揚力を安定化させることができる舟体の揚力安定化構造及びすり板を提供する。【解決手段】揚力安定化構造９は、すり板８Ａ〜８Ｃを支持する舟体７に作用する揚力を安定化させる。すり板８Ａ〜８Ｃは、舟体７が斜め上方向の流れＦを受けたときに、この舟体７に作用する揚力を増加させる揚力増加部１０Ａと、この舟体７に作用する揚力を低減させる揚力低減部１０Ｂとを備えている。揚力増加部１０Ａは、水平線とのなす傾斜角が小さい傾斜面１０ａを備えており、揚力低減部１０Ｂは水平線とのなす傾斜角が大きい傾斜面１０ｂを備えている。揚力増加部１０Ａ及び揚力低減部１０Ｂは、舟体７の長さ方向に沿って所定の配合割合で配置されている。揚力増加部１０Ａは、舟体７の長さ方向の中央部に作用する揚力を増加させ、揚力低減部１０Ｂは舟体７の長さ方向の両端部に作用する揚力を減少させる。【選択図】図３