I am very concerned about overloading the engine. Anyway I have been speaking to a prop manufacturer and just as David earlier suggested, he said I should change the gearbox ratio or the propeller. He recommended 36"x24" prop for that engine which is close to what boatdiesel calculator gave David, which was 36"x23". I have therefore decided to buy a new prop.
Thanks to all those who contributed to this forum.
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Edington
How do you confuse an engineer? Stick him in a round room and ask him to sit in the corner.
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