大方噴射推進船舶開發

DEVELOPMENT OF A JET-PROPELLED VESSEL

台灣四面環海，FRP遊艇工業非常發達，鋁合金遊艇工業正在積極發展，中大型遊艇大都採用柴油船內機帶動長軸及鋁青銅螺槳推進器，小型遊艇以船外機為主要推進方式。噴射推進系統主要用在海軍及海巡署之快艇上，本研究目的是想開發9米鋁合金遊艇且搭載自己研發之噴射推進器，其主機選用美國之汽油V8主機，其馬力420 PS，轉速為5600 RPM，直接帶動SOLAS JET H220的噴射推進系統，在興達港內實船測試，輕載可達40節，滿載可達35節，操縱性能非常優越，其運動性能很平穩，可以說是非常成功的開發案。此船的主要尺寸如下：總長9.2 m，船寬2.8 m，船深1.8 m，吃水0.4 m，空船重2.4 t，油箱400 L，船底傾斜角，船舯23°，船艉18°。

Taiwan, surrounded by the sea, has a well-established FRP yacht industry, and the aluminum alloy yacht industry is actively expanding. Medium- to large-sized yachts typically utilize diesel inboard engines driving long shafts and alumi-num-bronze propellers, while smaller yachts rely primarily on outboard motors for propulsion. Jet propulsion systems are predominantly used on fast boats operated by the Navy and Coast Guard. This study aimed to develop a 9-meter aluminum alloy yacht equipped with a self-developed jet propulsion system. The vessel’s main engine is a U.S.-made gasoline V8 engine with an output of 420 PS and a maximum speed of 5600 RPM, directly driving a SOLAS JET H220 jet propulsion system. Sea trials conducted at Xingda Harbor demonstrated outstanding performance, with the vessel achieving a maxi-mum speed of 40 knots under light load and 35 knots under full load. The vessel exhibited excellent maneuverability and stable motion characteristics, marking this as a highly successful development project. The principal dimensions of the vessel are as follows: LOA 9.2 m, Beam 2.8 m, Depth 1.8 m, Draft 0.4 m, lightship weight 2.4 tons, fuel tank capacity 400 liters, hull deadrise angles of 23ºat midship and 18ºat the stern.