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Old 22 January 2010, 03:38   #1
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laying up the hull

How many layers of Chopped strand mat or woven roven does it take for a rib hull.?

Is it chopped strand mat or woven roven ?

I worked in a factory in Gosport many many years ago making lifeboats they were all sprayed on.. Roven went through a gun with the resin and was all mixed together as it left the gun.
and then rolled out.

Then I moved onto Southampton and was making Mine sweepers. All woven roven there.

In between that i worked for a number of small firms making all sorts of g.r.p. items.

I am thinking maybe in the summer trying to get a mould to use or a hull and deck not joined.
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Old 22 January 2010, 03:47   #2
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sonar i think you need to be more specific ,its like asking how many eggs to bake a cake ,how bigs the cake
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Old 22 January 2010, 03:55   #3
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laying up

Quote:
Originally Posted by paul tilley View Post
sonar i think you need to be more specific ,its like asking how many eggs to bake a cake ,how bigs the cake
Say for a 6 mtr rib.
Sorry I guess the bigger the vessel the more lamination's required..
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Old 22 January 2010, 22:32   #4
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[QUOTE=Sonar;335951] Say for a 6 mtr rib.
Sorry I guess the bigger the vessel the more lamination's required.. [/QUO
my 5.4 searider had 7mm sides 9mm keel and 11mm at the bow when it was tested so I could use it for charter. That includes the resin but I dont know what type of glass was used eg csm/wr/biax. It also depends on strenght of the stringers and bulkheads and core you are going to use.
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Old 23 January 2010, 00:18   #5
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Sonar
I am not a boat builder, but have almost finished building a 7.5m rib,
I just read alot of boat building books and asked a few friendly boatbuilders questions. You will find there are many ways to build a RIB. The hard bit is which way is the best way, there is no answer to that. Everyone has there own way.Reading this forum and other forums you can gain ideas but no one simple answer.
The picture is of my rib that I am building. I built it without a female mould.The only wood in it is the transom everything else is fibreglass.
Have a look at this link. It may answer some questions. good luck.

http://www.hotribs.com/06ribmakers/r...nstruction.htm

regards
rpm
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Old 23 January 2010, 03:29   #6
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nice job, over here they have ruined everything, if your'e building a boat for yourself thats ok, if you start doing them to sell thats when RCD comes in, ce plates, you're not allowed to sell a new boat without one, or so they say! i've had something recently where a guy imported a boat from usa without a ce plate and he's having trouble insuring it, these twat's bugger up all our fun
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Old 23 January 2010, 03:37   #7
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over here they have ruined everything...bugger up all our fun
Isn't that a bit of a generalisation?

If I was to adopt a similar stance, would I presume you have no interest in safety of yourself or others, then?
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Old 23 January 2010, 03:56   #8
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Isn't that a bit of a generalisation?

If I was to adopt a similar stance, would I presume you have no interest in safety of yourself or others, then?
mmm,you would think so! let me go a bit further, BMIF, i think it's still called that, when you join as a responsible boat builder, your membership fee is related to your turnover, and when you need there support it ain't there, and it isn't getting better.
safety where it's neccessary, common sense always
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Old 23 January 2010, 16:58   #9
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RIBase
Some of the Carson moulds are for sale on Apolloduck
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Old 24 January 2010, 04:30   #10
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have you seen this video?
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