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Clean wind or favoured tack? |
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Grumpycat
Far too distracted from work Joined: 29 Sep 20 Online Status: Offline Posts: 497 |
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Topic: Clean wind or favoured tack? Posted: 07 May 22 at 9:16am |
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Oh come on lol. If you cannot come out of the tack faster than you went in , there is no point doing it
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423zero
Really should get out more Joined: 08 Jan 15 Location: United Kingdom Online Status: Offline Posts: 3406 |
Post Options Quote Reply Posted: 07 May 22 at 9:29am | ||||
Couple of good pumps too
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Robert
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sawman
Far too distracted from work Joined: 04 May 11 Online Status: Offline Posts: 205 |
Post Options Quote Reply Posted: 07 May 22 at 12:49pm | ||||
theres always someone who is rubbish at roll tacking blathering on about rule 42 in this situation, it would be reasonable to return to the speed you had before getting stuck in dirty air - so not gaining speed, more returning to previous speed.
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sawman
Far too distracted from work Joined: 04 May 11 Online Status: Offline Posts: 205 |
Post Options Quote Reply Posted: 07 May 22 at 12:50pm | ||||
if you have got it, flaunt it....
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Post Options Quote Reply Posted: 07 May 22 at 1:11pm | ||||
No, it’s reasonable that “just after the tack or gybe is completed, the boat’s speed is not greater than it would have been in the absence of the tack or gybe.”. You can’t use the tack to get to accelerate you, so there are no “kinetic benefits” to be had, at best there is still some loss as there will be speed (and distance) reduction in the turn that can’t be compensated for.
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sargesail
Really should get out more Joined: 14 Jan 06 Location: United Kingdom Online Status: Offline Posts: 1459 |
Post Options Quote Reply Posted: 07 May 22 at 1:21pm | ||||
So right and yet so wrong! The legal gain in a roll tack is in improved VMG during the tack. Ie when pointing upwind. If the return (and no more) to entry speed is efficient then a big gain is available. So kinetic gains mischaracterises the mechanism of gain, but the mechanism dos rely on good kinetics. |
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Grumpycat
Far too distracted from work Joined: 29 Sep 20 Online Status: Offline Posts: 497 |
Post Options Quote Reply Posted: 07 May 22 at 3:55pm | ||||
It might ‘ reasonable’ . But every dinghy sailor from reasonable club sailor to world champions does come out of the tack quicker .
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423zero
Really should get out more Joined: 08 Jan 15 Location: United Kingdom Online Status: Offline Posts: 3406 |
Post Options Quote Reply Posted: 07 May 22 at 5:21pm | ||||
I fairly race through the tack, I am very athletic, this throwing the boat through the manoeuvre must generate drive, but it isn't looked for, just a natural consequence.
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Robert
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Grumpycat
Far too distracted from work Joined: 29 Sep 20 Online Status: Offline Posts: 497 |
Post Options Quote Reply Posted: 07 May 22 at 8:46pm | ||||
This is very true, which is why this rule is very silly.
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Paramedic
Really should get out more Joined: 27 Jan 06 Location: United Kingdom Online Status: Offline Posts: 929 |
Post Options Quote Reply Posted: 08 May 22 at 6:49am | ||||
It isn't really though is it because if they did do away with it i'm pretty sure on some days I could roll tack my solo up the beat head to wind. Its only in conditions where we really shouldn't be racing that this crops up I suppose and if we decide to sail we - mostly - all know where the line is.
I don't think there is much wrong with any of the propulsion rules. Windsurfing removed them and within 3 years a thriving racing scene at my club had died completely.
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