Many posts mention turbo diesels that are pumped up to max hp are more likely to have issues at high engine hours. Agreed.
I've been around a lot of different types of boats. The multi million dollar sport fishers are typical for maxing out engines with turbos. These boats would idle for a good 1/2 hour after arriving to cool down the turbos and prevent turbo bearings from heat damage. That practice could be applied to trawlers as well with turbos.
Another thing that I've seen (unlikely to apply to trawlers) is custom 50' plus that can run at 40+ knots. They suck so much air that the engine hatch/steps in cockpit had to be opened 8 " to allow them to breath. Bad design but this can happen with billionaires who say to the builder, I don't care what it costs, make it faster than anyone else's boat.
Some folks have more dollars than sense. LOL.
I've been around a lot of different types of boats. The multi million dollar sport fishers are typical for maxing out engines with turbos. These boats would idle for a good 1/2 hour after arriving to cool down the turbos and prevent turbo bearings from heat damage. That practice could be applied to trawlers as well with turbos.
Another thing that I've seen (unlikely to apply to trawlers) is custom 50' plus that can run at 40+ knots. They suck so much air that the engine hatch/steps in cockpit had to be opened 8 " to allow them to breath. Bad design but this can happen with billionaires who say to the builder, I don't care what it costs, make it faster than anyone else's boat.
Some folks have more dollars than sense. LOL.