This paper discusses the early years in the development of the powerboat, specifically the evolution and changes of hull shapes in pre-war racing boats. From the beginning of the twentieth century to the advent of the Second World War, the revolutionary design changes and technological milestones achieved are arguably the greatest in any period of powerboat racing. Originally powerboat hull design had been subject to the concept of relating speed to waterline length. Similar to the sailboats of the time, long, lean canoe-shaped hulls ran through the water. The 60 foot long STANDARD of 1903 would become the blueprint from which high-performance hulls developed when it reached 22mph. Over the next thirty years, top speeds increased from DIXIE 2 's 38mph in 1909 to over 124mph by Gar Wood's MISS AMERICA X in 1932. Designs evolved from the displacement-type hull shape to the beginnings of the planing hull and soon single- and multiple-stepped hulls changed the face of boat design forever. The introduction of the three-point hydroplane hull created a paradigm-shift in design that has continued to affect high-performance boats of today.
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机译：本文讨论了摩托艇发展的早期阶段，特别是战前赛车船体形状的演变和变化。从20世纪初到第二次世界大战的来临，革命性的设计变更和所达到的技术里程碑可以说是在摩托艇比赛的任何时期中最大的。最初，摩托艇船体设计一直受制于将速度与吃水线长度相关联的概念。与当时的帆船类似，细长的独木舟形船体贯穿水面。 1903年的60英尺长标准（STANDARD）将成为达到每小时22英里时高性能船体的蓝图。在接下来的30年中，最高速度从1909年的DIXIE 2的38mph上升到1932年的Gar Woods的MISS AMERICA X超过124mph。设计从位移型船体的形状发展到滑行船体的开始，很快就达到了单桨和双桨的水平。多步船体永远改变了船型设计的面貌。三点水上飞机船体的引入在设计上产生了范式转变，并继续影响着当今的高性能船艇。
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