-speed boats with 2400 rpm engines and 1.5:1 gears. The benefits of this engine and gear package ... in following seas. A reduction in top engine rpm and a higher gear ratio can sometimes lead to difficult ... means to slow the propeller independently of the engine speed is often the solution. I didn't have ...

of the engine and accommodation spaces and isolation of all machinery from the hull structure on resilient mounts. Also part of the program is operating the Caterpillar main engines at their 1800 rpm reduced-horsepower B-rating, which will also result in longer engine life. According to Moonen's sea trials, sound ...