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Change the PY System?

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RS400atC View Drop Down
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Post Options Post Options   Quote RS400atC Quote  Post ReplyReply Direct Link To This Post Topic: Change the PY System?
    Posted: 24 Jul 17 at 5:14pm
Originally posted by KazRob

I thought it was supposed to somehow compensate for crew skill factor and end up as a base comparison between boats sailed by equal ability crews. The bit I don't quite understand is how a boat like the Solo, which adds a not insignificant 100ish new (mainly FRP with laminate sails I think) boats to the fleet every year gets slower according to the PY. I know there are lots of older boats, with older sails sailed at club level but with a significant number of new boats being added to the fleet each year I cant quite see how the 'base' Solo has gotten slower compared to boats around unless the crew skill factor is skewing it.

I don't think anyone is claiming the PY system can correct for crew skill factor.
Although most people would like it to.
I expect the Solos are getting slower because they are mostly racing against Lasers, Radials, 4.7s, OKs and so forth which are all getting slower?
These boats ought to have converged on stable numbers by now.

But the water is being muddied by trying to have Lasers on the same scale as 29ers and Wayfarers, where the numbers are only ever going to vary a lot.
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Post Options Post Options   Quote RS400atC Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 17 at 5:30pm
Originally posted by sandgrounder

Originally posted by RS400atC

....... local inshore clubs where the patterns of windshifts and bends are handed down through the generations. Under PY, in such a place, a TackTick is very useful for speeding up the learning process.


I'm intrigued and would appreciate if you could elaborate. Are you saying that the Tacktick will speed up the learning process relating to information passed down by my great uncle Bertie, or indeed as indicated by my flappy sail? Because if that's the case then I want some of that. Or is it that the Tacktick simply confirms the information which I've already been provided with? Or is it simply the case that you're an employee of Raymarine?


I have nothing to do with Raymarine. My TackTick pre-dates their involvement!
My use of digital compasses goes back further, with B'n'G systems on bigger boats.
Personally I find there are a lot of people I will never overtake in a straight line 'drag race', but if I get the shifts better than them I'm in with a chance.
All of the books will tell you how important shifts are.
A digital compass is IMHO, way superior to an analogue one.
For starters, you can read it from any angle and get an answer to the nearest degree.
This makes it much easier to discuss the trends with the crew, or to remember actual numbers.
Some places are deceptive. You sail toward the shore and the perspective makes you think you've been shiftted, the tacktck tells you the wind is the same. Sometimes you can feel the quick random shifts and miss the slower, underlying change. Or the bend which generally present when the wind is blowing down the shore.
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 17 at 5:56pm
Originally posted by KazRob

I thought it was supposed to somehow compensate for crew skill factor.

No it's to compensate for the differences in performance of the boats and, as you say, "end up as a base comparison between boats sailed by equal ability crews" 

The bit I don't quite understand is how a boat like the Solo, which adds a not insignificant 100ish new (mainly FRP with laminate sails I think) boats to the fleet every year gets slower according to the PY. I know there are lots of older boats, with older sails sailed at club level but with a significant number of new boats being added to the fleet each year I cant quite see how the 'base' Solo has gotten slower compared to boats around unless the crew skill factor is skewing it.

Many of those new boats, most likely, sail in Solo fleets rather than handicap races so don't affect the returns. In the same way that many new Lasers sail predominantly in class events leaving the handicap racing to the 'B fleet' sailors? The vast majority of returns come from club racing (simply because there is an order of magnitude more of it than handicap open meetings). Most (not all) club racing is by sailors who wouldn't trouble the chocolates at a National Championship so it's to be expected that the PN will represent those sailors not the hot shots (and I'm sure I read somewhere that the PY calculations discard the best and worst results to prevent anomalies caused by Sir Ben turning up at Yottingham on Sea Sailing Club and joining in the menagerie.....).




Edited by Sam.Spoons - 24 Jul 17 at 5:57pm
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 17 at 6:00pm
Originally posted by RS400atC

Originally posted by sandgrounder

Originally posted by RS400atC

....... local inshore clubs where the patterns of windshifts and bends are handed down through the generations. Under PY, in such a place, a TackTick is very useful for speeding up the learning process.


I'm intrigued and would appreciate if you could elaborate. Are you saying that the Tacktick will speed up the learning process relating to information passed down by my great uncle Bertie, or indeed as indicated by my flappy sail? Because if that's the case then I want some of that. Or is it that the Tacktick simply confirms the information which I've already been provided with? Or is it simply the case that you're an employee of Raymarine?


I have nothing to do with Raymarine. My TackTick pre-dates their involvement!
My use of digital compasses goes back further, with B'n'G systems on bigger boats.
Personally I find there are a lot of people I will never overtake in a straight line 'drag race', but if I get the shifts better than them I'm in with a chance.
All of the books will tell you how important shifts are.
A digital compass is IMHO, way superior to an analogue one.
For starters, you can read it from any angle and get an answer to the nearest degree.
This makes it much easier to discuss the trends with the crew, or to remember actual numbers.
Some places are deceptive. You sail toward the shore and the perspective makes you think you've been shiftted, the tacktck tells you the wind is the same. Sometimes you can feel the quick random shifts and miss the slower, underlying change. Or the bend which generally present when the wind is blowing down the shore.

And I'd add that mid fleet sailors are not usually masters at spotting wind shifts, a TackTick should definitely help them spot shifts more accurate/frequently. If they get 10% better at spotting favourable shifts they will definitely get 'round the course faster.
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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 17 at 6:49pm
Originally posted by KazRob

I thought it was supposed to somehow compensate for crew skill factor and end up as a base comparison between boats sailed by equal ability crews. The bit I don't quite understand is how a boat like the Solo, which adds a not insignificant 100ish new (mainly FRP with laminate sails I think) boats to the fleet every year gets slower according to the PY. I know there are lots of older boats, with older sails sailed at club level but with a significant number of new boats being added to the fleet each year I cant quite see how the 'base' Solo has gotten slower compared to boats around unless the crew skill factor is skewing it.
What you have to keep in mind is that, without a reference boat, PY is relative.  The Solo number (and Laser number) may have gone up, but that doesn't mean it's getting slower.  It might be getting quicker, but at a slower rate than most other classes. With the current system we will never know, though it does seem unlikely. But this is an observation you can't make without being accused of disrespecting hard working families. 
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Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 17 at 8:32pm
The Solo handicap dropped loads fairly recently. Not surprised by it might be causing boats not to win at a trot now, so bounce a little.
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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 17 at 9:35pm
Bounce should be filtered out, surely?
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Post Options Post Options   Quote sandgrounder Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 17 at 10:39pm
Originally posted by Sam.Spoons


Originally posted by RS400atC


Originally posted by sandgrounder

Originally posted by RS400atC

....... local inshore clubs where the patterns of windshifts and bends are handed down through the generations. Under PY, in such a place, a TackTick is very useful for speeding up the learning process.


I'm intrigued and would appreciate if you could elaborate. Are you saying that the Tacktick will speed up the learning process relating to information passed down by my great uncle Bertie, or indeed as indicated by my flappy sail? Because if that's the case then I want some of that. Or is it that the Tacktick simply confirms the information which I've already been provided with? Or is it simply the case that you're an employee of Raymarine?

I have nothing to do with Raymarine. My TackTick pre-dates their involvement!My use of digital compasses goes back further, with B'n'G systems on bigger boats.Personally I find there are a lot of people I will never overtake in a straight line 'drag race', but if I get the shifts better than them I'm in with a chance. All of the books will tell you how important shifts are.A digital compass is IMHO, way superior to an analogue one. For starters, you can read it from any angle and get an answer to the nearest degree.This makes it much easier to discuss the trends with the crew, or to remember actual numbers.Some places are deceptive. You sail toward the shore and the perspective makes you think you've been shiftted, the tacktck tells you the wind is the same. Sometimes you can feel the quick random shifts and miss the slower, underlying change. Or the bend which generally present when the wind is blowing down the shore.

And I'd add that mid fleet sailors are not usually masters at spotting wind shifts, a TackTick should definitely help them spot shifts more accurate/frequently. If they get 10% better at spotting favourable shifts they will definitely get 'round the course faster.


Fascinating. So will this TackTick also tell you what the wind is doing further up the windward leg, or across the other side of the course, or does it simply give a snapshot in time at your particular discrete location on the course?

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Chris 249 View Drop Down
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Post Options Post Options   Quote Chris 249 Quote  Post ReplyReply Direct Link To This Post Posted: 25 Jul 17 at 12:42am
Originally posted by A2Z

 But this is an observation you can't make without being accused of disrespecting hard working families. 
No one has ever been annoyed by a reasoned comment about the PY system have they? People like you and Dougal have made properly-argued criticisms of the PY and no one has given you grief for it.

Some of us do get annoyed at moronic, abusive and childish claims that the PY organisers are behaving in a deceptive fashion, but that's completely different to reasoned comment.
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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 25 Jul 17 at 6:43am
Sorry, I just get fed up with the "it'll never be perfect so there's no point trying to improve things, and they're volunteers don't you know" line of argument. 
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