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Old 31 December 2008, 17:54   #21
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Going slightly off thread has any one got a link to that Scrap heap challenge?
I'm sure this is the one. The one I mentioned is the blue one (team in yellow.)
http://www.channel4.com/science/micr...owerboats.html
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Old 31 December 2008, 18:17   #22
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This has got inflatable tubes, it even carries a spare 1 as a seat

http://rib.net/forum/attachment.php?...1&d=1230747111 http://rib.net/forum/attachment.php?...1&d=1230747111
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Old 31 December 2008, 19:26   #23
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The collars are made from closed cell foam (similar to Ethafoam or jiffycell) i think and have a pvc or polyurethane cover over them.

Picture of a Weedo 700 FRC in the build
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Old 31 December 2008, 19:26   #24
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That 'rib' looks wanky
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Old 31 December 2008, 20:20   #25
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Quote:
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That 'rib' looks wanky
No, it's worse than that.
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Old 31 December 2008, 20:36   #26
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No, it's worse than that.
very wanky ?
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Old 01 January 2009, 04:00   #27
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SAFE Boats make foam collared boats in the US. They supply the Defender 25 foot Fast Reponse boats to the USCG, among others.

Website here:
http://www.safeboats.com/default/index.php

Info on the collar here:
http://www.safeboats.com/default/boats_collar.php

jky
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Old 01 January 2009, 10:42   #28
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Quote:
Originally Posted by Endeavour View Post
The collars are made from closed cell foam (similar to Ethafoam or jiffycell) i think and have a pvc or polyurethane cover over them.

Picture of a Weedo 700 FRC in the build
That looks about right Steve, but this one was more tube shaped except for the squared nose Like that one has. It's a good looking RBB (cheers polwart!) and I've seen the students hammering it on the river. Seems to shift well too.
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Old 01 January 2009, 12:31   #29
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The RNLI's E class lifeboat on the Thames is an RBB:

http://www.chiswicklifeboat.org.uk/eclass.htm

Cheers

Chris
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Old 13 January 2009, 16:10   #30
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We've built numerous "Buoyant Fendered Topside" boats and having the facility to build them in house allows us to manufacture the shape to suit. The FRCs and MoR SOLAS vessels have a larger section as buoyancy, slamming and dropping are key to the craft's survivability in the harshest of environments; we have however produced craft with the same principle but with a half rounded cross-section rather than rectangular to give the aesthetic effect of a traditional RHIB

The benefit of this type of collar is not only its impact resistance and durability but also the fact that it bonds/fastens to the outboard side of a raised hull side; thus effectively increasing the useable deck width, bearing in mind an inflatable collar would sit half in/half out of the boat taking up valuable deck space.
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Old 13 January 2009, 19:53   #31
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Quote:
Originally Posted by Delta Rich View Post
We've built numerous "Buoyant Fendered Topside" boats and having the facility to build them in house allows us to manufacture the shape to suit. The FRCs and MoR SOLAS vessels have a larger section as buoyancy, slamming and dropping are key to the craft's survivability in the harshest of environments; we have however produced craft with the same principle but with a half rounded cross-section rather than rectangular to give the aesthetic effect of a traditional RHIB

The benefit of this type of collar is not only its impact resistance and durability but also the fact that it bonds/fastens to the outboard side of a raised hull side; thus effectively increasing the useable deck width, bearing in mind an inflatable collar would sit half in/half out of the boat taking up valuable deck space.
How do they compare for buoyancy and life expectancy (of the "tubes") compared with RIB's Rich?
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