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Old 13 March 2010, 15:10   #11
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How much is aft of the transom?
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Old 13 March 2010, 15:19   #12
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How much is aft of the transom?
the last 1 foot of the tube itself.
the cone area of the tube.
instead of a conical shaped tube it could be an end cap made in grp.
the tube with a flat sealed end would go into the cone by approx a foot and them be inflated and tape glued into position.
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Old 13 March 2010, 15:39   #13
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why
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Old 13 March 2010, 15:52   #14
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the last 1 foot of the tube itself.
the cone area of the tube.
So you'll have a hypalon tube next to the transom then a lump of GRP hanging off the end?
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Old 13 March 2010, 15:54   #15
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So you'll have a hypalon tube next to the transom then a lump of GRP hanging off the end?
it does not sound so good said that way so i guess that's a no no idea then..
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Old 13 March 2010, 15:55   #16
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Wouldn't fancy it myself, you might as well have solid tubes all the way round
A fine idea
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Old 13 March 2010, 15:58   #17
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A fine idea
Well it was just a thought seen them and asked if there a good idea or not.

NOT is the word.
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Old 13 March 2010, 16:18   #18
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I think even if the "GRP tube" section was well supported and did go past the transom I wouldn't fancy the chances of it taking a knock. The tube would give then hit the GRP bit and could break.
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Old 13 March 2010, 16:50   #19
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A fine idea
Polwart has clearly been on the brandy again



Quote:
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Well it was just a thought seen them and asked if there a good idea or not.

NOT is the word.
No indeed ... dont be silly.. If i've ever been grateful for a bit of spongyness on my Ribs, its always been at the bow and the stern
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Old 13 March 2010, 17:29   #20
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Polwart has clearly been on the brandy again
unfortunately not!

However I have rigid 'tubes' all the way round on mine. Now that might be a structurally much stonger suggestion than having the ends hard with soft bits in the middle. I would say if you are going to have rigid bits then use it to your advantage in some way. There are Rigid tubed boats which are rigid because that way they don't get punctured / damaged so much in the sun etc. That's probably less of an issue in the home rib market, compared to the costs (and risk of neglect) in the commercial market. But my solid tubes offer a number of advantages (1) the inboard side is shaped to provide a seat all the way round which is "in" rather than "on" the boat (2) the bow has a built in anchor locker/seat which provides valuable storage often missing on boats my size (3) the aft 'tube ends' are shaped to provide a step for getting in / out from the water easier. (4) in addition the PE tubes have built in space for rollocks, clips to store oars and lifeline supports - all of which would add considerable cost getting professionally fitted to tubes - but were engineered into the mould.

Now I'm not trying to advocate "all round hard tubes" as the holy grail in rib design BUT its certainly not as 'bizzare' are Chewy might have suggested and actually might have some plus points.

As for the OP's question Brig have small hard sections (probably hard plastic rahter than GRP?) with steps in them on some/all of their ribs - so not as daft as being implied.

I don't want to criticise your 'hard nose' either Sonar - but again I would be looking to do something in terms of shape/utility that isn't possible in hypalon. IIRC some of the redbay range come with quite a "pointy" hard nose (presumably better for punching through the sea) whilst others come with a fuller nose which is "open to the cabin" on the inside so giving much more volume in the forecabin.
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