Quote:
Originally Posted by hal
Perhaps a touch late in response to this question, but one set of wargame rules suggests that ships could lose as much as 20 to 25% of their speed if they are heavily infested with barnacles and such. If I recall, the rules also suggested that careening had to be done every 4 to 6 months. How accurate this is, I can't say :(
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From what I've read this is fairly accurate. Of course, growth rates vary by location, so a ship in tropical waters will need more frequent cleaning than one in cold waters. Based on my conversation this weekend with one of the sailors on the
Dove, I believe a ship in the mid-latitudes would be best served with a bi-annual maintenance. He told us that, even with modern anti-fouling paint, they do a yearly dry-docking. He added that there was one year that they decided to skip the annual $4,000 maintenance, and the next year they had $40,000 worth of hull repairs.