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What constitutes a wave

Printed From: Yachts and Yachting Online
Category: Dinghy classes
Forum Name: Technique
Forum Discription: 'How to' section for dinghy questions and answers
URL: http://www.yachtsandyachting.com/forum/forum_posts.asp?TID=12461
Printed Date: 05 Dec 21 at 8:30am
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Topic: What constitutes a wave
Posted By: ifoxwell
Subject: What constitutes a wave
Date Posted: 25 Jul 16 at 4:31pm
Sorry if I'm out of touch here, but is the old, one pump per wave to promote planing still in the rules.

If so what constitutes a wave. On the Medway we get a lot of chop and occasionally some wash from a passing boat but no real waves?

Cheers

Ian


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RS300



Replies:
Posted By: MattK
Date Posted: 25 Jul 16 at 4:41pm
I have experienced it being interpreted as the wave being big enough to actually surf on as is the intent of the rule, the case being an on the water jury interpretation where they gave you 3 attempts to pump resulting in surfing before giving a penalty


Posted By: GML
Date Posted: 25 Jul 16 at 9:56pm
As MattK says, what matters is whether or not you are successful at initiating surfing or planing, not how big the wave is - see Pump 8 in the ISAF Interpretations of Rule 42:

PUMP 8 If a boat repeats an unsuccessful attempt to plane or surf, she is in the yellow light area. A third consecutive unsuccessful attempt is prohibited.


Posted By: ifoxwell
Date Posted: 26 Jul 16 at 11:23am
Thanks guys.

Not trying to be awkward here but what constitutes surfing. A good pump on any wave could lift you onto it even if it only last for a second? Is that enough

Ian


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RS300


Posted By: Brass
Date Posted: 26 Jul 16 at 1:29pm
Originally posted by ifoxwell

Thanks guys.

Not trying to be awkward here but what constitutes surfing. A good pump on any wave could lift you onto it even if it only last for a second? Is that enough


If you are serious about this, you really need to read the rules (rule 42 Propulsion) and the WS INTERPRETATIONS OF RULE 42, PROPULSION:

Rules here  http://www.sailing.org/tools/documents/ISAFRRS20132016Final-%5b13376%5d.pdf" rel="nofollow - http://www.sailing.org/tools/documents/ISAFRRS20132016Final-[13376].pdf
http://www.sailing.org/tools/documents/ISAFRRS20132016Final-%5b13376%5d.pdf" rel="nofollow -
Rule 42 Interpretation here  http://www.sailing.org/tools/documents/R42intMay13-%5b15083%5d.pdf" rel="nofollow - http://www.sailing.org/tools/documents/R42intMay13-[15083].pdf

A 'wave' is something you can 'surf' on.

'surfing' means 'rapidly accelerating down the front of a wave' (rule 42.3( c ).

A little lift onto the crest is not enough:  you have to accelerate down the front of it.


Posted By: ifoxwell
Date Posted: 26 Jul 16 at 1:56pm
Thanks all. 

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RS300


Posted By: iGRF
Date Posted: 27 Jul 16 at 9:00pm
Look at it another way, a wave is something that can trap and reduce your speed in many circumstances since mostly over here they travel slower than the windspeed and your own potential to plane, so getting trapped in a trough and having to climb slowly up the back can be a drag, especially if you miss being able to surf down or along the slope. I'm sure I'm not telling you how to suck eggs when i say you snake through waves anyway, harden up along the troughs and only bear off and pump when you know the wave face behind will lift your stern enough to propel you down, up and over the next hump if your lucky, most often the best you can do is maintain station in a wave that might be travelling faster than the wind and your ambient pace,

Waves also affect different boats according to their wavelength and the boats length, try wrestling a 390 rockered boat against a 420 less rockered surfing bitch like the Laser, mucho kinetics required...

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https://www.corekite.co.uk/snow-accessories-11-c.asp" rel="nofollow - Snow Equipment Deals      https://www.corekite.co.uk" rel="nofollow - New Core Kite website



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