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Old 03 October 2009, 06:01   #1
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Here are the complete set of boards
4 in total plus ofcourse the fixed small board in the boat



here is a pic i found on ebay of the boards in place (shame they are painted orange).

hope this helps



phill
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Old 04 October 2009, 09:14   #2
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Hi Folks,

First post on here so please be gentle. I have also just aquired an S400 as well and will be replacing the floor boards as they are rotten.

Quick question though, I gather that there is supposed to be a permanent board glued into the boat and underneath the flooring. If this is correct, does anyone have any pictures of what this looks like and especially what the floor of the boat looks like without the panels in place. I noticed a couple of flaps about 1/3 of the way back which could have been glued to something previously.

This boat looks like it's going to be quite a project to complete. I've already made a new transom to replace the old one and will be gluing this in shortly. Also replacing the old A4 valves with C7 ones as they all leak badly and have a couple of patches to put on.

Starting to think I've bitten off more than I can chew.

Bruce
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Old 08 October 2009, 00:51   #3
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hi
yes the s 400 have a glued board in front i like to send you the floorboar assembly instruccions but i most to scan cause its glued on a wood piece that is used to push down the floorboard.

sant
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Old 08 October 2009, 06:02   #4
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Does the exact position of the glued board matter as long as it does the job of holding down the inflatable keel?

There are some hypalon tabs in the boat that look like they might have been glued to a board in the past but I can't be sure.

Any idea of the thickness of ply that this needs to be as well?

Thanks,

Bruce
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Old 08 October 2009, 14:50   #5
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[QUOTE=Paganferret;319933] Does the exact position of the glued board matter as long as it does the job of holding down the inflatable keel?

Bruce

You are right to hold the keel down is one of jobs that the glued bord does but isnot the only job, the posicion its very important cause here is where the floorbord rest i've the original assambly instruccions i'll send you but i need to scan cause it's glued to the wood piece you need to complete the floorboard assambly
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Old 12 October 2009, 12:47   #6
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Found this picture on ebay showing the glued panel on the floor and thought it might be useful to someone else on here. It is exactly what I was looking for anyway!
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Old 17 October 2009, 23:31   #7
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Quote:
Originally Posted by Paganferret View Post
Found this picture on ebay showing the glued panel on the floor and thought it might be useful to someone else on here. It is exactly what I was looking for anyway!
Hi

I saw the pic on your post and seems to be an s400 but newer than mine i hope boot models have the same mesurements if you dont know what year is yours at the transom of your boat you can see de serial number the last two are the year when your boat was made i will take the mesure of the floor seccions and send to you as soon.

Sant
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Old 18 October 2009, 09:41   #8
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Quote:
Originally Posted by Paganferret View Post
Does the exact position of the glued board matter as long as it does the job of holding down the inflatable keel?

There are some hypalon tabs in the boat that look like they might have been glued to a board in the past but I can't be sure.

Any idea of the thickness of ply that this needs to be as well?

Thanks,

Bruce

Hi Paganferret, that board that is normally glued in is the thrust board. It's primary purpose is to ensure that the 3 floorboards aft of it will fit tightly between it and the transom when those floorboards are pushed flat and the stringers are installed. The tight fit puts the fabric under tension to help keep the inflated hull more rigid. Older zodiacs use a similar system.

The thrust boards do tend to be a real PITA however, because over a period of time they do tend to come loose, and regluing them properly is complicated and laborious. The solution that the RNLI guys use with their Avon IRBs is to remove the thrust board altogether and located 2 marine turnbuckles (they refer to them as bottlejacks) between a single plywood board (that replaces the 3 aft floor boards) and the bowboard. there is a small gap between the boards where the thrust board would have been. I will see if I can find any pictures of this setup. Maybe one of the RNLI fellows will post up.
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Old 18 October 2009, 09:48   #9
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Here is a picture that mart chappelow had posted a while back. Notice how thick that the back floorboard is.
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Old 18 October 2009, 11:07   #10
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Quote:
Originally Posted by prairie tuber View Post
Here is a picture that mart chappelow had posted a while back. Notice how thick that the back floorboard is.
here are some pics of the 4 seccions of the floor and 2 side battens for an avon s4000
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