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Old 21 July 2015, 07:29   #41
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Country: UK - England
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Boat name: Marty
Make: Avon Searider 5.4m
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There should be a 'LIKE' button! I've had 2 x Ocean Ribs in the past so I watch this one with Interest!
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Old 21 July 2015, 16:23   #42
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Thanks, glad my ramblings are being read and the photos looked at.............

Onto the work, so you can see the tank compartment looks shiny in this pic, thats a "hot mix" of the specialist resin to seal the surface, this is followed by a basic lining of two 600g csm and really soaked out to make a resin rich layer (not how you would normally laminate but this is to create a fuel proof layer and is not really structural even though it does add something to the structure)

Have cut out the new fuel tank baffles and the top of the fuel tank from the panel that I made the other day. I normally have lots in stock but at the moment I am just waiting for some more of the specialist resin so I can glass over the curved edges of the baffle plates then glass them into the tank space.

I was going to leave the rest of the deck till the tank part is done and deck fitted but i had to cut out a little bit more round the front of the console so I could get some smaller bulkheads fitted and get the bulkhead top onto the forward fuel tank bulkhead ready for the deck. In one of the pics you can really see the total de-lamination of the deck, the plywood laying on the hull leaving just the skin of GRP in place.

I got a couple of the smaller bulkheads cut out and trial fitted, still 6 more to do in this area where previously there was nothing !! and bulkhead tops for all of them. If I get time I will get the rest of these cut out and dry fitted tomorrow along with the bulkhead tops. Then I can trim back the edges of the new structure I have already fitted fill the gaps and join this all in with the new small bulkheads.
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Old 25 July 2015, 04:21   #43
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Still no resin to finish the fuel tank so I continued with the smaller bulkheads to give extra support to the deck and hull.

I put them in as a dry fit then using hot glue fixed them into place so I could put a radius on the joints (gravicol this time as crestomer is not required for this job). Once that is done they get glassed in with strips of 2 x 600csm.

Solid 9.5mm GRP plates are then cut to size and dry fitted as bulkhead tops, this helps to spread the load on the joints between the hull and deck. Creating a really robust structure.
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Old 25 July 2015, 04:24   #44
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Might help if I actually attach the pictures !!
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Old 25 July 2015, 05:29   #45
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I can't help but think, that if someone less diligent/brave/skilled than yourself had bought this rig, what a sack they would've been taking their family out in.
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Old 26 July 2015, 04:29   #46
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Mollers, yes you are right nothing other than a complete rebuild would have saved this rib. It was in a dangerous condition and there would not have been a "cheap easy fix" that could have sorted it to the point where you should even consider going out to sea. Unfortunately it all stems from how the rib was built from new as the design and construction methods throughout the boat had flaws that meant this outcome was inevitable.

I have been looking at the console over the last week and have decided that there are too many problems and ways that I can re-design it so the functionality and ergonomics are much better let alone the actual quality of the existing moulding. As such I will make a new plug and mould for my own version
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Old 26 July 2015, 04:38   #47
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What material are the bulkhead cores? I presume you are going to use a vinyl ester resin for fuel areas?
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Old 26 July 2015, 06:17   #48
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GTflash, correct the resin is a type of Vinylester but I mix in some other "secret ingredients" as well 😷 😀

Quick answer is a form of plastic honeycomb core but the material I use is a stronger "heavy duty" version of any other grade of Nida and the factory in France makes that specifically for us.
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Old 26 July 2015, 06:38   #49
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So are you going to ditch the ply decking, and stick with the modern materials throughout? Very impressive work. I'm 3 years into a restoration to get not far away from where you are already
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Old 26 July 2015, 07:16   #50
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Yes all of the plywood and timber is going, there is no need for it. What I am fitting in its place is stronger, lighter, has sealed cells, will not soak up any water and no rot at all. Also because of how much of it I purchase from the factory each year it is cost effective for me to use it however even if it was more to purchase I would use it instead of even the best of marine plywoods. Don't get me wrong I wouldn't use just any core instead of Plywood, pretty much all types of foam for instance is in my opinion a complete waste of time as over the life of the boat you can end up with fracturing through the core material as well as increased risk of de-lamination from the surface when shock loads are applied. I have found through quite extensive use of core materials over the years that the one I have is by far the most durable.

Well yes I only manage to get the odd hour here or there to spend on this project, If the resin had turned up so I could finish the tank space this week I would have already had the deck down in this section but that will have to wait till after next weekend now. Trouble is once I pick up a Cengar the "Red Mist" descends and before you know it I have a whole load of extra work to do because I know I can do a better job if I do it myself
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