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Old 03 December 2007, 09:56   #21
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i must admit its been quiet without you(heaven ) so im glad you still have your mates sorry pals now,and i would guess that the reference to uv at altitude wont apply to many here because i think we use our boats at sea level glad your better
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Old 03 December 2007, 10:33   #22
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and i would guess that the reference to uv at altitude wont apply to many here because i think we use our boats at sea level
. . . but worrying for RIBnetters using Lake Titicaca
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Old 03 December 2007, 10:47   #23
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and now a 25 page thread about the best 4x4 to get up there
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Old 03 December 2007, 13:56   #24
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. . . but worrying for RIBnetters using Lake Titicaca
And the people with flying RIBs..........
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Old 04 December 2007, 05:43   #25
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Even the Falklands gets high UV
We certainly do - a lot of "UV resistant" stuff doesn't last well here - nor do ginger people who arrive in the middle of summer

Clear atmosphere/no pollution is the main reason.
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Old 07 February 2008, 17:27   #26
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fabric ageing

I have to disagree with JIY statement, that Tornado polyurethane fabric ages better.

I had to re-tube a 480 Tornado coming from Switzerland, always used on a local lake - 5 or 6 years old, no more.

The color was perfect, bright orange like new, the fabric was very thick, but the fabric and assemblies were delaminating ... plus a lot of air leaks.

I ordered a hypalon tube from Eurocraft, nice work, fitting perfectly. Happy customer now.

This customer told me that he knew another Tornado user on the same lake, a dive club, with the same fabric problem.

It seems that PU fabric doesn't like fresh water - this was confirmed to me 20 years ago by a friend working as tyres engineer for Michelin.
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Old 08 February 2008, 09:08   #27
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yorfuoj, I have no experience of RIBs in freshwater and also no experience of older Tornados, so I'm sure your comments are correct.

However, I do have some experience of Tornados built and operated in the sea over the last 7 or 8 years and the tubes have worn extremely well, with no maintenance required other than an occasional wash down with some fairy liquid.

The 10m Humbers I drive need lots of tube maintenance (hypalon) to keep them looking good and are definitely more prone to abrasion than PU tubes. To be fair, they are commercial boats and get a lot of heavy use, but I still think that the newer PU tubes wear better.
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Old 08 February 2008, 09:31   #28
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Ribs don't age?

My rib is aging better than I am!

I've got a ten year old Avon Searider at 17 degrees N of the Equator and although we're both a bit scruffy at this point, the Avon is holding up extremely well!

The scruff factor comes down to elbow grease. If I wanted my tubes to be shiny and scuff free I would spend more time with a rag and compounds. As I only care about delamination and leaks I really don't care if my strakes are dull. I wash the salt off the rig religiously after every use, slap a cheap cover over it and am good to go, next time. Has the gelcoat faded? Yes, but last time I looked that was the "hard boat" part of the deal!
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Old 08 February 2008, 09:39   #29
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Originally Posted by codprawn View Post
Just because you are close to the Equator doesn't always mean very high UV
What's your theory there doctor? We have twelve hours +/- sunlight high overhead 365 days a year with a regional average of only about 15 days overcast a year. If I leave, for instance a red frisbee or red plastic gas container exposed to sun, the pigment is gone in two weeks.

Oh...and sorry about the dual comments to this thread. It came back to life and I forgot I'd already posted previously. UV got to my brain as well....
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Old 08 February 2008, 20:15   #30
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I had to laugh at this post , will anyone ever admit there is any disadvantage to a rib ,
Of course hypalon in general fades faster andhas a shorter life than grp , maybe certain bright colours are an exeption, but if a rib has any disadvantage its the degredation of the tubes .
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