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Old 14-02-2013, 16:09   #1
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Are reverse bows/plumb bows safe in the open ocean...

in your opinion? I have a big tri with a plumb bow for the main hull, and traditional bows for the amas, and also race small cats with reverse bows. To weather, reverse bows are great, but in the open ocean...storms...hitting submerged objects at speed 15+ knots, I'm not so sure. Any research on the subject on multihulls?
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Old 14-02-2013, 16:22   #2
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Re: Are reverse bows/plumb bows safe in the open ocean...

Friends have a Schionning G Force - with reverse bows, it coped very well in the open ocean, sustained 45-50 knot winds, 5 metre seas just the two of them in the coral sea, worked really well.

As for hitting anything, the reverse component is sacrificial foam, then there are two separate collision bulkheads.
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Old 14-02-2013, 16:25   #3
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Re: Are reverse bows/plumb bows safe in the open ocean...

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As for hitting anything, the reverse component is sacrificial foam, then there are two separate collision bulkheads.
That seems to me very important if you are going with this configuration. I have hit a lot of stuff offshore, and I was very glad each time that I had a glancing blow due to the slope of the keel and bow.
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Old 14-02-2013, 16:36   #4
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Re: Are reverse bows/plumb bows safe in the open ocean...

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Friends have a Schionning G Force - with reverse bows, it coped very well in the open ocean, sustained 45-50 knot winds, 5 metre seas just the two of them in the coral sea, worked really well.

As for hitting anything, the reverse component is sacrificial foam, then there are two separate collision bulkheads.
. My ama bows are also sacrificial, too. There are some oil servicing ships in Northern Europe that now have reverse bows. A new thing there, for sure, but seem to be working out well. Maybe more readers will chime in!
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Old 14-02-2013, 16:49   #5
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Re: Are reverse bows/plumb bows safe in the open ocean...

I believe the practice is to maximize waterline length in order to achieve higher speeds.
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Old 14-02-2013, 17:02   #6
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Re: Are reverse bows/plumb bows safe in the open ocean...

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I believe the practice is to maximize waterline length in order to achieve higher speeds.
Are they very wet at speed? It would seem that the flared, normal bow shape would be drier, but I have no experience with the reverse bow.
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Old 14-02-2013, 17:06   #7
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Re: Are reverse bows/plumb bows safe in the open ocean...

A few years ago we almost bought a mono with a "dingy" bow. The bow was flat above the water lone, as if cut off vertically. At the time we had Ted Brewer advising us. He was unconcerned with yhe bow design, unusual but fine.
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Old 14-02-2013, 17:08   #8
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Re: Are reverse bows/plumb bows safe in the open ocean...

I don't like boats that throw a lot of spray and water back at the cockpit, and this would concern me.
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Old 14-02-2013, 17:18   #9
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Re: Are reverse bows/plumb bows safe in the open ocean...

Actually, reverse bows throw off less water than conventional bows. They seem to slice thru the water, rather than over the water. Hard to give you an example unless you have sailed a boat with a reverse bow. Pretty smooth, actually.
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Old 14-02-2013, 17:46   #10
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Re: Are reverse bows/plumb bows safe in the open ocean...

Quote:
Originally Posted by P1PEL1NE View Post
. My ama bows are also sacrificial, too. There are some oil servicing ships in Northern Europe that now have reverse bows. A new thing there, for sure, but seem to be working out well. Maybe more readers will chime in!
Actually they're not new. They've been around for most of a century.





Here is some research on reverse bows.

http://www.ulsteingroup.com


http://www.youtube.com/watch?feature...&v=SMmiHB2Qa9M
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Old 14-02-2013, 17:52   #11
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I believe the practice is to maximize waterline length in order to achieve higher speeds.
Maximize waterline length with minimum weight?
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