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Peter Barton View Drop Down
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Post Options Post Options   Quote Peter Barton Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 20 at 1:15pm
Originally posted by 423zero

....extra wind resistance from larger sail, negates what would appear to be a obvious step up.

Only an issue once overpowered and that comes later on flat water (like lakes).
With extra power if you cant 'use it' you have to 'lose it' as efficiently as possible to minimise drag. That is part of the racing/sailing challenge. Flat sail, tight controls, daggerboard up a little as a more efficient alternative to flogging the sail or heeling over.

Even after you are overpowered upwind you can still make your gains downwind - fast planning reaches and the agility to S-turn catching waves down the run.

Before you are overpowered it is a joy and for most of our sailing, especially inland, an appropriate weight of sailor will be in that range.
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Post Options Post Options   Quote Peter Barton Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 20 at 1:23pm
Originally posted by H2

 
I think this is the answer actually. The aero hull is aimed at a lighter helm and struggles to carry the weight needed to utilise the larger sail.

Evidence and realty would suggest otherwise.
The RS Aero Nationals this year had a good variety of conditions (a little biased to the higher wind).
Whilst there was still a good mix of weights at the front, sailors at the heavier end of the usual ranges did well overall and still performed in the light winds too.
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Peter Barton View Drop Down
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Post Options Post Options   Quote Peter Barton Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 20 at 1:29pm
Originally posted by rb_stretch


From experience, I would say that the advantage of the 9 upwind is small, but the advantage reaching or off-wind significant, so the relative competitiveness is probably down to the nature of the course. I'm about 88kg these days, down from 97kg when I owned a Phantom.


Thats true, it is not just about wind strength but angles too. With a marginal planning reach angle the RS Aero 9s, even with heavier sailors, may gain back their PY seconds.
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Post Options Post Options   Quote maxibuddah Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 20 at 1:30pm
Pete,
what are the perceived weight ranges for the different rigs?


Edited by maxibuddah - 07 Sep 20 at 1:30pm
Everything I say is my opinion, honest
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Peter Barton View Drop Down
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Post Options Post Options   Quote Peter Barton Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 20 at 1:39pm
Originally posted by GarethT

From the few I've seen, the 9s look really hard work above a 3

It is quite easy to make any boat look hard work as the wind increases!
Reminds me of the learn to windsurf saying; 'if it is hard work you are probably doing it wrong!'
The challenge is learning to do it efficiently and in controlled way. Usual rules apply.
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Post Options Post Options   Quote GarethT Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 20 at 1:44pm
Originally posted by Peter Barton


Originally posted by GarethT

From the few I've seen, the 9s look really hard work above a 3

It is quite easy to make any boat look hard work as the wind increases!
Reminds me of the learn to windsurf saying; 'if it is hard work you are probably doing it wrong!'
The challenge is learning to do it efficiently and in controlled way. Usual rules apply.


I don't doubt that. Just my observation from club racing.
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Peter Barton View Drop Down
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Post Options Post Options   Quote Peter Barton Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 20 at 1:46pm
Originally posted by davidyacht

From a design perspective in displacement mode one might design a boat to float to its lines at the design displacement with the transom just kissing the water ... though something so conventional might not have limited Jo Richards ... so with such a light boat it is probably fair to say that a heavy person is going to sink the transom or will have to sit further forward, and so the boat won’t be sailing at its optimum.


Same for any dinghy; Get your weight forward in light winds.
For any sailor at the heavy end for their class this increasingly more important.
A boat in overly bow down trim will suffer much less than any boat in an overly stern down trim in light breezes.
As soon as you have hull speed it is less of an issue.
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Post Options Post Options   Quote Peter Barton Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 20 at 1:56pm
Originally posted by patj

I've seen the 8.1 popular at ditch locations where the wind comes over banks and reeds and height is really useful. These locations would possibly suit the Aero 9 too.

True!
We have an annual River Championship and the RS Aero (RS Aero 9 in particular) proves fast and agile in confined waters with fickle quickly varying breezes.
We had 18 RS Aero 9s on the 65m wide start line at Avon SC!







Edited by Peter Barton - 07 Sep 20 at 3:47pm
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Peter Barton View Drop Down
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Post Options Post Options   Quote Peter Barton Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 20 at 2:05pm
Originally posted by Cirrus

... The '9' is great in very light conditions ... but many will be as quick or quicker with the more practical '7' in any 'proper' breeze...  and things will be very much more in the boats (and most helms) comfort zone.   Just an 'external' view of course !!

There is of course a lot of range, perhaps most of our sailing, in between 'very light' and 'proper' as well, and more so still on flat inland waters.
There are also sailors who seek the more exciting and athletic challenge and would shun being restricted by a 'comfort zone', as well as those who don't.
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Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 20 at 2:07pm
Nobody at work today?
Robert
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