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Fishtug capability in heavy seas

Posted: Mon Oct 16, 2017 9:56 pm
by fleetwood
Considering purchasing a fish tug with the specs below. Curious what kind of foul seas you may have been out in a vessel of similar size/design. I realize every boat/situation/captain is different but just seeking general thoughts.

LOA: 46
Beam: 12.5
Draft: 3 to 3.5
tons: 15
engine: 165 hp
fully enclosed traditional fish tug
lower profile design (lower freeboard than a Burger or Marinette design)
scuppers protected by cowlings
no excessive topside equipment

Re: Fishtug capability in heavy seas

Posted: Tue Oct 17, 2017 12:20 am
by Points North
That should be a tug that can handle pretty much any waether. The length at 46ft is ideal in heavy seas. The Coast Guard (Great Lakes) built their rough weather rescue craft at 48ft. Their naval engineers based it on equations of wave height, pitch and distance between peaks. That would put your length at pretty much optimal. The draft at 3 to 3.5 is less than what I'm used to seeing on a fish tug. Usually I'd say 4.5 to 6ft in traditional hulls. I don't know the builder but I'm guessing the draft is a little deeper than that.

Fish tugs were designed to withstand brutal waether and a general rule is that they can take more punishment than the men inside them. There have been a few that have gone down but it's not normally the rough seas that were the cause. In the documentary that my brother and I produced "Legends of the Lakes" We have Philly Anderson talking about the 65ft Burger built "Searcher" going down and his assessment of it's weaknesses. In the full length version of the documentary we have Charlie Nylund recall taking a roll so bad they caved the doors in on the opposite side of the boat.

All in all I'd be safe to say that foul weather wouldn't be an issue for a boat of that design and size. If you have any more questions feel free to ask. If I can't help you I'm sure somebody will. Thank you.

Re: Fishtug capability in heavy seas

Posted: Tue Oct 17, 2017 5:28 pm
by fleetwood
Thanks for your response, very informative.

Re: Fishtug capability in heavy seas

Posted: Wed Oct 18, 2017 1:04 am
by Points North
You're welcome. It was a good question that made me think. How do you explain how you know a vessel is seaworthy?