I understand that 18' wide gives more interior volume.Does the extra width help with ride?Does it help with stability at anchor?How big of a difference?Any other benefits?
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Thread: 16' vs 18' ?? How wide to go?
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06-21-2019 11:23 AM #1Registered Member
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16' vs 18' ?? How wide to go?
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06-23-2019 08:45 AM #2
Re: 16' vs 18' ?? How wide to go?
I find the extra width gives more then interior room, it translates over all 3 decks. When calculating stability beam is a major factor, and 2 extra feet can add a lot of stability mathematically. I have not been on a 15'10" boat in a long time, so I cannot speak to the ride, but in almost every case the ride is better (smoother). Best thing to do is find some boats in your area, and beg a ride. Most Hatteras owners love to take people out.
riverrandy
1975 64' MY Hull# 305
Merritt Island, FL
Cape Crossing Marina
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06-23-2019 10:26 AM #3
Re: 16' vs 18' ?? How wide to go?
The math wont lie.
Wider will mean better stability and reduced roll. Narrower will mean softer entry into a head sea. Since a boat at anchor will usually take waves to the bow wider boat will rise and fall more IF the hull is the same.
As far as rolling it's all about the cob vs cog. Build it higher it will rock. Keep the bottom wide and the weight low and it will rock less. Then15.10 boats roll much more than the wider boats.Scott
41C117 "Hattatude"
Port Canaveral Florida.
Marine Electronics and Electrical Products Distributor.
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06-23-2019 07:26 PM #4Registered Member
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Re: 16' vs 18' ?? How wide to go?
I think the wider boat may be my best choice. It would probably work better with a larger dinghy also.River Randy I have a crazy July with no time to look at boats until August but I would gladly pay for fuel for someone to take me on a demo ride. That is a great idea.
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06-24-2019 08:57 AM #5
Re: 16' vs 18' ?? How wide to go?
marina slip widths where you want to cruise should be included in your analysis. We cruise in places where an 18 or wider beam would require the face dock.
much more limiting.Mal
Miss Molly
'85 53ED #750
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06-24-2019 09:06 PM #6Registered Member
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Re: 16' vs 18' ?? How wide to go?
[QUOTE=carolinacoast;352221]marina slip widths where you want to cruise should be included in your analysis. We cruise in places where an 18 or wider beam would require the face dock.
much more limiting.[/QUOTE
That is a good point.
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Re: 16' vs 18' ?? How wide to go?
Two feet of beam is worth 6 feet of LOA
Pascal
Miami, FL
1970 53 MY #325 Cummins 6CTAs
2014 26' gaff rigged sloop
2007 Sandbarhopper 13
12' Westphal Cat boat
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06-24-2019 10:29 PM #8Registered Member
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Re: 16' vs 18' ?? How wide to go?
The 18'2" rolls more at the dock than the 15' 10". I know this from a Hatteras rendezvous many years ago in Grand Haven, MI. There was a surge coming in the channel from Lake Michigan. The boat slips were situated so that all of the boats were taking it on the beam. We sat on shore having a pot luck dinner and all commented on how the 65MY, 60C, and 60MY rolled more than the three 53MY that sat along side of them.
It seems counter intuitive but we all saw it. I think maybe the extra flat surface area aft lends to the extra roll, or maybe it was just the period of the waves.Last edited by SKYCHENEY; 06-24-2019 at 10:40 PM.
Sky Cheney
1985 53EDMY, Hull #CN759, "Rebecca"
ELYC on White Lake--Montague, MI
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07-10-2019 09:36 PM #10