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Rupert View Drop Down
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    Posted: 12 Jan 11 at 4:30pm
Originally posted by RS400atC

Originally posted by maxibuddah

I..... The carbon/tin thing is a red herring though, they don't make that much difference, only allow the lightweight freaks in......
......


I can't believe you think that!
Weight in a dinghy is bad.
Weight in the ends of a boat is worse.
Weight aloft is many times worse still!

Then there is generally a better gust response to be had with carbon masts.
That would probebly make a big difference in a class race, where getting your nose in front is vital, but I doubt it would make more than a couple of points difference on handicap. A lighter, stiffer hull combined with it, though, will certainly see a change, and the figures now bear this out.
 
The other thing that has probebly changed in the Phantoms as they became more popular was the standard of sailing across the fleet, and the same appears true of the Streaker.
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maxibuddah View Drop Down
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Post Options Post Options   Quote maxibuddah Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 11 at 4:44pm
Originally posted by RS400atC


Originally posted by maxibuddah

I..... The carbon/tin thing is a red herring though, they don't make that much difference, only allow the lightweight freaks in......
......
I can't believe you think that!Weight in a dinghy is bad.Weight in the ends of a boat is worse.Weight aloft is many times worse still!Then there is generally a better gust response to be had with carbon masts.


can't believe it took that long for the response. anyway to quantify my statement..
Weight is bad, but shorn of a belly chainsaw I am the heaviest thing on my boat. For info about the rig then while you will get a better gust response it doesn't make that much difference to a heavier sailor in the fleet, hence the lightweights comment. My best result in the phantom nats was 9th a few years ago using a. M7 ali rig. Next equal best was a 10th, once with ali, once with carbon. All events ranged from light to heavy wind and I struggled no less than anyone else. I think that shows that if you are heavy enough to cope with the power then they aren't slower.
Everything I say is my opinion, honest
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G.R.F. View Drop Down
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Post Options Post Options   Quote G.R.F. Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 11 at 5:25pm
What has happened to this frikking software timing out early?

I've just lost another detailed post which potentially blew open the logic for why this is probably happening.

Basically with all the data available to boat designers from modern computer programmes it would be real easy to take an old kit boat class,  reform the hull, rocker/ waterline/ wetted surface to make it faster then build it in something modern and no-one would even know. 

Are there Scrutineers/ Measurers active in these old classes? Active enough to spot what could happen?

I doubt it.


Edited by G.R.F. - 12 Jan 11 at 5:26pm
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Post Options Post Options   Quote RS400atC Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 11 at 5:37pm
Originally posted by G.R.F.

What has happened to this frikking software timing out early?

I've just lost another detailed post which potentially blew open the logic for why this is probably happening.

Basically with all the data available to boat designers from modern computer programmes it would be real easy to take an old kit boat class,  reform the hull, rocker/ waterline/ wetted surface to make it faster then build it in something modern and no-one would even know. 

Are there Scrutineers/ Measurers active in these old classes? Active enough to spot what could happen?

I doubt it.


I think if you won any decent events someone would eventually ask for a measurement cert if the boat did not look right. If there is no class association to issue class rules, you can do what you want, but you should expect the PY to change at the whim of the RO.
Some events are only open to dinghies with a published PY.
It should say in the NoR.
Otherwise you should be able to enter anything, even a one-off, and the RO should give you a PY.
Using his judgement presumably, and with the expectation that it will change if it appears badly wrong.
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G.R.F. View Drop Down
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Post Options Post Options   Quote G.R.F. Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 11 at 5:51pm
So has the Streaker or Streakers in question got such a measurement certificate? (Bearing in mind, build enough of them and it overcomes the 10% rule if you have such a thing in dinghy world)
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Post Options Post Options   Quote winging it Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 11 at 5:53pm
Originally posted by G.R.F.

 
Basically with all the data available to boat designers from modern computer programmes it would be real easy to take an old kit boat class,  reform the hull, rocker/ waterline/ wetted surface to make it faster then build it in something modern and no-one would even know. 

Are there Scrutineers/ Measurers active in these old classes? Active enough to spot what could happen?

I doubt it.


A class like this perhaps?



Yes, there are still people around sharp enough to spot a reshaping of such a boat - some are even considering it themselves!
the same, but different...

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G.R.F. View Drop Down
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Post Options Post Options   Quote G.R.F. Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 11 at 6:11pm
Yes I imagine the five oh would get heavily scrutinised, but the Streaker? A really old Kit design that must have lots of leeway for error, I would have thought could be a PY blaggers dream armed with those CAD programmes I saw before Christmas down at Synthesize.
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Post Options Post Options   Quote Medway Maniac Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 11 at 6:19pm
On the subject of Streaker weights, take a look at this;
 
Plenty of variation in the older boats - one hull of 70kg! - but plenty around the current max of 48kg as well. 
 
That must be par for the course in a lot of well-established classes - we couldn't lift my old grp Hornet, but it was still good for class wins in displacement conditions, and even planed quite well on two-sail reaches too for some reason (soft-mainsail rig,  I think).
 
Maybe another reason why the Laser PY is tough - there are no grossly overweight boats to drag the PY down.
 
On the other hand, most of the Laser PY stats will be based on club racers - the proportion of Laser sailors in handicap racing who are class hot shots must be pretty small - those guys usually class-race their Lasers.
 
The consensus at WSC was that Lasers were hopeless on PY, until a good sailor turned up and won plenty! That said, WSC - with lots of long legs - is not the ideal venue for them.
 
As Jim C has often observed, the spread among helms from elite to novice is huge (around 25%, I guess) , which makes the sort of variations people bicker over in PY seem trivial.
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Post Options Post Options   Quote steve123497 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 11 at 6:20pm
Originally posted by G.R.F.

So has the Streaker or Streakers in question got such a measurement certificate? (Bearing in mind, build enough of them and it overcomes the 10% rule if you have such a thing in dinghy world)

Funnily enough, the sailor in question is the class measurer. He bought his boat new from Rooster and would be far too honest to try anything underhand.
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Rupert View Drop Down
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Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 11 at 6:46pm
The Rooster mould was taken from an existing wooden boat, didn't someone say?
Class associations do take care on this kind of thing - their aim is, after all, to keep the class together, not to kill it.
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