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Posts Tagged ‘youth sailing’

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post-26198-0-10048000-1439752601We’re always happy to hear from longtime SA’er and high performance guru Julian Bethwaite.  He checked in with this interesting infographic, and here’s why.

For the umpteenth time, I was asked 2 weeks ago what boats should a 12 year old Opie kid sail to best place him in a 49er when he gets into his late teens, early 20′s.  This mum was very smart, with a far greater grasp of numbers than I, spreadsheets, etc., but I still struggled to get the flow across, so I generated the following graphical representation, and she has come back and said, and I quote  ”Thanks for following up. Interesting graphical depiction of the relative properties of these classes of boats, brings the stats to life.”

So, what I am seeking from you guys/gals is a peer review!

I could give you all my figures, but I think that would predispose a bias, which I have little doubt I will be accused of.   Instead, I plan to explain my rationale, and asked others to have a go at there own interpretation and maybe we can blend them and end up with something meaning full.

So what I have done is go to the RYA site and dig out the relevant PY [Porthsmouth Yardstick] numbers.  I have picked the boats mostly on simplicity, firstly if I did not know them, then I could not represent them.  I then went into the ISAF site and looked up the technical data.

So I have exclusively used that information unless the RYA/ ISAF data was simply wrong, in which case I went into that class’s rules and gleaned it from there.

An example, 470 appears not to have a PY number, so I worked out approx where it should be.  I included the IC because its too interesting not to.  And we all know a moth sails heeled to windward and greatly increases its RM by doing so, where as a Laser, when sailed “flat” is actually heeled about 6° to leeward.  I have not imputed these shifts in CoB, I have assume the boats are all bolt upright as per their numbers.

Finally I have used the ISAF high performance definition about sailing faster than the wind, downwind, most of the time, to draw the red line. Not sure why a 470 does not do it more often (Tack down wind), but we also know a 29er does, most of the time, (and yes, I know why).

What is irrefutable is that a 5o5 and to a lesser extent a I14, spend a lot of money and effort setting their boats up so they can quite deliberately switch to HP modes both upwind and downwind, so, from my POV I consider the 5o5 to be the tipping point boat. It has has a foot in both camps, one could say the best of both worlds.

Get the full explanation from JB here in the thread.


August 17th, 2015 by admin

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AY7Q8121While its international appeal is fairly diverse, the American A-Cat Class has long been regarded as the province of athletic but greying sailors, so it’s surprising that we’ve got not one but two teenagers racing their own boats at the A-Class NAs in the OBX.  Here’s a Rachel Jesperson/OceanImages look at the excellent Jeremy Herrin, who nailed a second place yesterday sailing an A-Cat he built himself in his Sarasota, FL garage with his dad.

Here’s the Day 1 Highlight Video with a short chat from Jeremy; three more days of sailing are ahead with Bruce Mahoney leading the fleet after two light air races.


June 12th, 2014 by admin

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