Canada-based ship designer Robert Allan Ltd has teamed up with Voith Turbo Schneider Propulsion (VSP) to collaborate on a brand new tug concept, dubbed RAVE. The concept will feature twin VSP drives, situated longitudinally along the hull, fore and aft. The set-up is similar to that of the Voith Water Tractor (VWT) concept; however, Robert Allan claims that the new positioning of the propellers has been proven in model tests, and by computational fluid dynamics (CFD) analysis, to retain maximum thrust generation with no loss of output - a problem that previously affected the VWT and most side-by-side drive arrangements.
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机译：加拿大船舶设计师罗伯特·艾伦有限公司（Robert Allan Ltd）与福伊特涡轮增压施耐德推进技术（VSP）合作，共同开发了一个全新的拖船概念，称为RAVE。该概念将采用沿船体，前部和船尾纵向放置的双VSP驱动器。设置类似于福伊特水拖拉机（VWT）的概念。然而，罗伯特·艾伦（Robert Allan）声称，螺旋桨的新定位已经在模型测试中得到了证明，并且通过计算流体动力学（CFD）分析得以证明，可以在不损失任何输出的情况下保持最大的推力产生-这个问题以前曾影响VWT和大多数方面并排驱动装置。
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