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iansmithofotley View Drop Down
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Post Options Post Options   Quote iansmithofotley Quote  Post ReplyReply Direct Link To This Post Topic: High Performance Boats
    Posted: 19 Mar 07 at 8:17pm

Hi everyone,

As far as I know, many years ago, there was a Cherub design that measured as a National Twelve in accordance with the National Twelve measurement rules.  I think that some of the problems are with the Twelves 'rise of floor' measurement and the 'shape of sheerline' rules.

Ian  (Yorkshire Dales S.C.)

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mike ellis View Drop Down
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Post Options Post Options   Quote mike ellis Quote  Post ReplyReply Direct Link To This Post Posted: 19 Mar 07 at 8:05pm
is that a would that measure as a national 12 hull? or is it just a cherub isis?
600 732, will call it Sticks and Stones when i get round to it.
Also International 14, 1318
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Isis View Drop Down
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Post Options Post Options   Quote Isis Quote  Post ReplyReply Direct Link To This Post Posted: 19 Mar 07 at 7:24pm
Originally posted by mike ellis

just read through this and noticed someone mentioned making the N12 quicker, surely it wont go that quick will it? i mean its a nice light boat and its quick for a hiker but you wouldnt get it down to 850 with more sail alone. what is the PY for a national 12 anyway? im geussing around 1000-1050





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Merlinboy View Drop Down
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Post Options Post Options   Quote Merlinboy Quote  Post ReplyReply Direct Link To This Post Posted: 19 Mar 07 at 7:23pm
Fingures crossed the boss will be back soon as well!!
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mike ellis View Drop Down
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Post Options Post Options   Quote mike ellis Quote  Post ReplyReply Direct Link To This Post Posted: 19 Mar 07 at 7:16pm
just read through this and noticed someone mentioned making the N12 quicker, surely it wont go that quick will it? i mean its a nice light boat and its quick for a hiker but you wouldnt get it down to 850 with more sail alone. what is the PY for a national 12 anyway? im geussing around 1000-1050
600 732, will call it Sticks and Stones when i get round to it.
Also International 14, 1318
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skslr View Drop Down
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Post Options Post Options   Quote skslr Quote  Post ReplyReply Direct Link To This Post Posted: 19 Mar 07 at 5:40pm
We are owning an RS800 and tried both set-ups, also one RS800 at SunSail:
 
If you go through all the hassle of paying, rigging, launching and keeping an RS800 upright you want all the fun, i.e. helming from the wire :-) On the single wire version you rely pretty much on the righting moment your trapezing crew creates. But if he/she is just hoisting the kite or sitting on the bow  (in light air as the RS800 has virtually no rocker) and a puff hits you, you are in trouble...
 
I think a real single wire version of the RS800 would need to be somewhat easier to sail: More rocker, more weight, less sail area - somewhere between RS800 and Laser 4000. Or 59er with single trapeze and better quality... Cherub/29er/National 12/Vago are in my opinion to small to be easy to sail for tall/big men.
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49erGBR735HSC View Drop Down
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Post Options Post Options   Quote 49erGBR735HSC Quote  Post ReplyReply Direct Link To This Post Posted: 19 Mar 07 at 2:09pm
5000 and BOSS have bigger kites than B14s. I don't really see the point in designing a singlewire boat trying to reach levels of performance currently held by twin string boats as with such boats agility across the boat is a key factor and the ability to stay on your feet helps greatly. Sitting down to hike in my opinion would be more demanding and restrictive than hooking on and stepping out, so why over complicate issues by trying to solve a problem with a more difficult solution? The B14 is the exception to this rule, but from what I can remember, most of the 800 fleet opted to sail double wire as it made the boat more competitve and nicer to sail and from what I was told at the time, the helm hiking was more hassle than good and was negative to overall boat dynamics.
Dennis Watson 49er GBR735
Helensburgh S.C
Boat Insurance from Noble Marine

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jeffers View Drop Down
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Post Options Post Options   Quote jeffers Quote  Post ReplyReply Direct Link To This Post Posted: 19 Mar 07 at 1:03pm
As many people arond this forum will know...

Topper dropped out of the GRP boat market last year to concentrate solely on carrier bag recycling (just my opinion).

Most of the ex Topper GRP boats are now built successfully and profitably but the relevant CA's.

The CA's know what their sailor want and give to them in bucketloads, something that Topper never did....(aside from being very good on the Blaze wing issue which they did a free upgrade to all CA members).

Paul
Paul
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D-Zero GBR 74
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CurlyBen View Drop Down
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Post Options Post Options   Quote CurlyBen Quote  Post ReplyReply Direct Link To This Post Posted: 19 Mar 07 at 11:27am
I think the 800 STV did have tramps but it's a long way to get out and you're still slower than the normal version. The new 800 deck is designed just for trapezing - the STV isn't available anymore. It is however what Sunsail (and some others I think) use.
Getafix - RS800? Arguably easier to sail than all your options bar the 29er (I haven't sailed all the boats you mention but know people who've sailed all but the Cherub, and being 12ft long won't really help someone learning to twin wire).
On a side note, can Laser still really trade as "Performance Sailcraft Europe"? I think the Vago's pushing the term and the rest I definitely wouldn't describe as performance (of the boats they still actively market).


Edited by CurlyBen
RS800 GBR848
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boatshed View Drop Down
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Post Options Post Options   Quote boatshed Quote  Post ReplyReply Direct Link To This Post Posted: 19 Mar 07 at 10:54am
Originally posted by BBSCFaithfull

Originally posted by boatshed

Originally posted by owain

A b14 isnt far off the mark at 880. Somethin like a b14 with a slightly bigger kite, narrower wings and a single wire wud fit the bill.

Slightly bigger kite ?  Its already around 30 sq.m giving the B14 50 sq.m of downwind sail !  All that without a trapeze ( or two).  And you want to add narrower wings ??!

There are plenty of single trapeze dinghies to choose from and some are very good.  And you've got to ask why the single trapeze RS800 flopped. 



Leverage VS Righting moment was very poor

Maybe but the reality was the single string 800 had wide wings and was rubbish for the helm as a sit out boat.   Did it have tramps ? 

 



Edited by boatshed
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