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Matt Jackson View Drop Down
Really should get out more
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Joined: 21 Sep 04
Location: Darlington
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Posts: 962 		Post Options Post Options   Quote Matt Jackson Quote  Post ReplyReply Direct Link To This Post Topic: RS400 proposed changes
    Posted: 09 Nov 12 at 10:38pm
BTW my personal view on sails is that it's at worst a temporary problem because sails themselves are temporary compared to a hull. I'd also be willing to bet that the performance difference between a new sai and a knackered sail is considerably bigger than between new and old design so buying new sails is always going to give you a performance advantage, design change or not. Also the guys at the top of the fleet tend to buy new kit more often but correlation is not necsessarily causation.

Also I don't mind the odd spat... it reminds one you're alive!
Laser 203001, Harrier (H+) 36
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haroosh View Drop Down
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Posts: 521 		Post Options Post Options   Quote haroosh Quote  Post ReplyReply Direct Link To This Post Posted: 10 Nov 12 at 6:01pm
I remember replacing an old 400 main many years ago and I layed the old main over the new (old style) main and couldn't believe how much the old sail had shrunk so I agree with Matt's point above.
Keith
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hollandsd View Drop Down
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Joined: 12 Oct 06
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Posts: 853 		Post Options Post Options   Quote hollandsd Quote  Post ReplyReply Direct Link To This Post Posted: 12 Nov 12 at 8:19am
Originally posted by Matt Jackson

Originally posted by boatbasher

Originally posted by hollandsd


.....im an engineer that deals with many plastics from day to day in medical applications.


then you will know how difficult it is to glue nylon and as such it a poor choice to sleeve a tube ...
From another engineer Nylon is a very common sleave and bearing material and tends to be used because it's cost-effective, available and most important self-lubricating. Bonding can be an issue but it's easily overcome if you're aware of it. move on people, nothing to see here.


Thanks Matt +1

The B14 fleet have most recently been using Acetal as an alternative to Nylon, more expensive and just as difficult to stick but a more stable material.

Dan
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RS400atC View Drop Down
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Posts: 3011 		Post Options Post Options   Quote RS400atC Quote  Post ReplyReply Direct Link To This Post Posted: 12 Nov 12 at 11:51am
Originally posted by hollandsd



Thanks Matt +1

The B14 fleet have most recently been using Acetal as an alternative to Nylon, more expensive and just as difficult to stick but a more stable material.

Dan

What are they using it for though? Is it for something where glueing it is critical?
Anyway, what RS have done clearly hasn't worked, these things happen.
The tapered pole is tied up with the single line hoist concept, which AFAIK virtually everyone has ditched anyway.
Since the taper causes the bow flaps to work badly, has no real functional advantage and costs more, we really ought to just go back to ali poles that work.
I find it more than a little ironic that to win the RS400 nationals it seems to pay to use parts that are not even available to the general public, but the Merlins were won by a stock boat, we've lost something somewhere.
I hope it all gets convincingly sorted in good time for the Dinghy Show.
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