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d-zine
Senior Member Joined: 15 May 2006 Location: United Kingdom Status: Offline Points: 176 |
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Hi NEU, Thinking about your comment on the shrinkage of the planks, which is why it has taken me so long to reply. You got me worried you silly s'x'd. If the planks are 150mm wide and the joints are nominally 3-5mm then shrinkage is max 5% or 2.5mm from either side. As I have seen no sign of tearing or elongation of the fixing holes within the planks I am going to assume as it should be that this sort of movement was accomodated for in the original design and detailing of these boats.
If I am wrong then she won't be Flywood she will be lots of bits of wood floating in the overall shape of a boat. Time will tell. RAFWEBFOOT, what was the RAF line as regards operating these boats in a hot climate to manage shrinkage within the timber, were they kept moist or were they allowed to dry and then refered to as 67ft RTTL's? Edited by Pioneer |
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d-zine
Senior Member Joined: 15 May 2006 Location: United Kingdom Status: Offline Points: 176 |
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Barnacle,
You can still see the calico when the joints are raked out, it no longer serves as a water impermeable barrier as you can now see through from the inside of the hull i.e pin pricks of light at some points where the planking crosses. |
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barnacle
Groupie Joined: 16 June 2007 Location: United Kingdom Status: Offline Points: 69 |
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if i remember correctly, the 2 layers of the hull planking had a sandwich of white lead paste and calico fabric between them didnt they?
ahhh The Keppel, thats the beast... thanks for that d-zine |
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d-zine
Senior Member Joined: 15 May 2006 Location: United Kingdom Status: Offline Points: 176 |
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Hi again,
Another photo from 2 weeks ago taken from the Starboard Bow. Edited by d-zine |
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d-zine
Senior Member Joined: 15 May 2006 Location: United Kingdom Status: Offline Points: 176 |
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Hi Barnacle,
Just to tidy things up and because I like pictures I have attached an Image of HMS KEPPEL who was instrumental in the attempted rescue of 2754 as advised by yourself. Edited by d-zine |
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clive
Senior Member Joined: 11 December 2006 Location: United Kingdom Status: Offline Points: 379 |
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Good idea.
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masbie something in the water. www.freewebs.com/masb32/
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d-zine
Senior Member Joined: 15 May 2006 Location: United Kingdom Status: Offline Points: 176 |
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Hi Clive,
Guess she looks like an inside out swimming pool. |
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clive
Senior Member Joined: 11 December 2006 Location: United Kingdom Status: Offline Points: 379 |
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Hi Darren, I recon the answer to your question could be to take them out in rough seas. p.s. I like the paint, she looks ready for a dip! |
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masbie something in the water. www.freewebs.com/masb32/
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northeastuser
Senior Member Joined: 10 June 2006 Location: United Kingdom Status: Offline Points: 446 |
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So bearing in mind these vessels are riveted along the edge of the planks perhaps you may have been told the answer to a question I’m curious about. Once they get to a certain age and you get this type of drying out and the planks shrink. Well doesn’t that mean the rivets have been pulled by about half the distance of the gap. E.G if you have a 10mm gap then the rivets along the adjoining planks have been pulled sideways (or broke/twisted) by about 5 mm. So if you do get the planks to take back up, wont that mean they will be lose now? or at least start to work when at sea. Even if she looks and sounds tight can you trust those rivets? So what’s the plan? Re-rivet between the original rivets?replace every second plank? Edited by northeastuser |
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d-zine
Senior Member Joined: 15 May 2006 Location: United Kingdom Status: Offline Points: 176 |
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Hi,
I think on my next trip I will bring a moisture meter and record the moister level in the timbers and their sizes. Then when the timber has taken up I will record again. As the boats were built in the UK then the timbers were acclimitatized to our climate so service anywhere warmer would result in shrinkage. What did the RAF do when the boats were in service in the Med,Barhein and Gan to stop or at least control shrinkage? |
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