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Propulsion efficiency 'beyond belief'

机译：推进效率“超越信念”

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"Designing an optimum propulsion system demands an understanding of the forces affecting both the hull and the propulsion system when a vessel is running at high speed," explains Magne Moklebust, managing director of Norway's Servogear."Conventional propulsors (propellers or water jets) work most efficiently in open water conditions. However, when a propulsor is attached to a hull, the hull will influence the water flow entering the propulsor and reduce efficiency accordingly."Since 1981, Servogear's product development has focused on a total propulsion concept, making full utilisation of the forces at work below the hull. The company has developed a unique propeller tunnel, which, in combination with its effect rudder and other developments, results in greater propulsion efficiency below the hull than in open water. Moreover, Servogear's propeller tunnel in itself reduces hull resistance, an effect that has been documented by independent tank tests and full-scale measurements.
机译：挪威伺服公司董事总经理Magne Moklebust解释说：“设计最佳推进系统需要了解船只高速运行时影响船体和推进系统的力量。” 然而，当推进器附着在船体上时，船体将影响进入推进器的水流并相应地降低效率。 利用船体下方工作的力量。 该公司开发了一条独特的螺旋桨隧道，该隧道结合其影响舵和其他发展，使船体以下的推进效率高于开放水。 此外，Servogear的螺旋桨隧道本身降低了船体的耐药性，这种效果已通过独立的储罐测试和全尺度测量结果进行了记录。

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