simpleinterest
Member
I am in the process of looking for a boat. Have decided that about 45' will have enough room to check all the boxes. One question I have while considering hull styles is this: I know a full displacement hull is going to travel at about 8 knots and I'm OK with that. Most I have viewed have low HP engines and have a low fuel burn rate which is a good thing. Semi displacement hulls carry higher HP engines and will cruise at a higher speed, not important to me. Can I run the higher HP engines at lower RPM's for extended periods, at trawler speeds to reduce the burn rate, without damage to the engines. I have been told that turbo engines need to be run at higher RPM's, at least occasionally, to clear exhaust soot. Any feed back would be appreciated.