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Old 02-05-2010, 11:24 AM   #1
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Default "Unsinkable" Boats...

I know that both Boston Whaler and McKee Craft have foam-cored hulls... and thus claim to be "unsinkable."

Are there any other brands with this construction? I noticed that Cape Horn claims to be "unsinkable" but haven't seen any information on how they construct there hull...

Anyone have any insight? Thanks.

RSM
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Old 02-05-2010, 11:42 AM   #2
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Right side up is important also!
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Old 02-05-2010, 11:47 AM   #3
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Ranger Boats states the same thing. They have a few boats that they cut large chunks out of and even a front end off one and they still perform well for having pieces missing.
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Old 02-05-2010, 11:48 AM   #4
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I was just doing more research... It's apparently a U.S. law for power boats under 20 feet to have "positive" flotation... So, I'm assuming the "unsinkable" Cape Horn I was reading about (under 20 feet) has a construction that ensures it won't sink if swamped.

But, I'm still wondering if any other brand has a "unibond" foam construction, across their fleet, like BW and McKee?
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Old 02-05-2010, 11:51 AM   #5
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Scouts
Cape Horns
Key West
Carolina Skiffs
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Old 02-05-2010, 01:44 PM   #6
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Edgewater
Everglades

Like Whaler, Dougherty marine designs
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Old 02-05-2010, 02:42 PM   #7
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http://www.youtube.com/watch?v=RCRtBO6meAU

Take a look at this Ranger cut-away.
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Old 02-05-2010, 03:43 PM   #8
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Ameracat.com you can drive with the plugs out.

seal boats drive with plugs out
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Old 02-05-2010, 04:14 PM   #9
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Most will probably turn turtle like the Egdewater did that was involved in the death of the NFL players in Tampa last year... While it is nice to believe that foam filled boat might save you, it seems to be more of an advertising gimmic than a real lifesaver Just my 2 cents
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Old 02-05-2010, 04:26 PM   #10
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Quote:
Originally Posted by Cracker View Post
Most will probably turn turtle like the Egdewater did that was involved in the death of the NFL players in Tampa last year... While it is nice to believe that foam filled boat might save you, it seems to be more of an advertising gimmic than a real lifesaver Just my 2 cents

That boat was an 21' Everglades. Even if it did capsize I would think a foam filled boat would be better. I would also think it would bail itself quicker if it got swamped by a big greenie.
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Old 02-05-2010, 04:32 PM   #11
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Canyon Bays are too!
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Old 02-05-2010, 04:58 PM   #12
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A typical cork is unsinkable in the same sense that some boats are. How they float when swamped is another question. How much life saving ability they have when upside down is another consideration. It takes more than foam coring to make a boat as safe as it can be. Quantity and placement come into the equation.
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Old 02-05-2010, 05:13 PM   #13
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if you hit something hard enough don't worry- you won't be in the boat anyway
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Old 02-05-2010, 05:18 PM   #14
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Wahoo Boats, but they've been out of business for quite a few years....similar (almost identical) to Whalers....
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Old 02-05-2010, 05:29 PM   #15
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Quote:
Originally Posted by MAGNUS View Post
That boat was an 21' Everglades. Even if it did capsize I would think a foam filled boat would be better. I would also think it would bail itself quicker if it got swamped by a big greenie.
Your right it was an Everglades, I always get them confused as they seem to be pretty close in design anyways. There was no if their Everglades capsized, it did. The foam filled Everglades did not help save all of those guys. Foam filled hulls have nothing to do with how well a boat self bails, it has to do with scruppers or splash well design to let that green water out quickly, so I dont follow your line of thinking there...?

Those kind of boats are significantly more expensive due to their build. They are nice boats but if I was buying a foam filled boat mainly because I was counting on it to save my families life in an emergency, I would be better served buying a liferaft and other safety equipment... Tight Lines
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Old 02-05-2010, 06:00 PM   #16
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Boats "turtle" because most of the flotation is on the floor.
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Old 02-05-2010, 06:11 PM   #17
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Flotation sounds like a good and valuable concept to build into a boat. Level flotation is a lot better, but also much harder to find because the weight of the engines is on the stern, where you have the least room for flotation. There are a couple downsides to consider. First, filling the hull with foam means that getting into the hull for servicing things like seacocks and wiring runs can be a lot more difficult. Also, flotation foam has a reputation for absorbing water over time. That water in the foam can also corrode the fuel tanks. So while flotation sounds good, it does not help if the only thing that is floating is the bow.

One of the most feared events on boat is fire. If you do have a fire, it does not matter if the boat floats level or not, because you're not going to stay on board.

That's why my chosen flotation is my life raft. Let's say you are out there and a fuel tank starts to leak and gas is sloshing around in the Bilge. You discover it before it ignites, but it is still there. Do you want to stay on board and hope nothing sets it off, or would you rather watch from a distance until someone comes with a long tow rope?
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Old 02-05-2010, 07:43 PM   #18
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The Aristocraft fiberglass boats were.....
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Old 02-05-2010, 08:47 PM   #19
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Remember the football player who clung to the "unsinkable" boat survived. Also a swamped or turtled boat on the surface still gives the rescuers something to locate (versus just bodies).

Anyone paint a bright orange patch on their hull bottom? The searchers for that Everglades commented it was had to distinguish the boat hull from the whitecaps.
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Old 02-05-2010, 09:08 PM   #20
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Stabicraft.


http://www.stabicraft.com/

.
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