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moomin View Drop Down
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Posts: 60 		Post Options Post Options   Quote moomin Quote  Post ReplyReply Direct Link To This Post Topic: RS aero
    Posted: 06 Aug 15 at 10:40am
The Finns do go beyond normal R 42, they and the 470s have a class rule that if the wind is above 10knots a signal is made before the race that switches off R42.2 completely so unlimited pumping and ooching is allowed.

C.1.1 RULES (1) RRS 42.3 is changed by adding: The Race Committee may signal in accordance with RRS Appendix P5 that pumping, rocking and ooching are permitted after the starting signal, except when the boat’s proper course is close-hauled or above. This changes rules 42.2(a), 42.2(b) and 42.2(c). (2) The Finn Class recommends that race committees apply 
Rule C.1.1 (1) in winds of 10 knots and above, measured at deck level on a race committee boat at the windward mark. See also A.7.2.  

So in light winds normal rules apply, is strong winds all bets are off!
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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 06 Aug 15 at 8:25am
There is no variance in the ca rules so rule 52 and rule 42 apply to the aero I.e no pumping or ouching. ISAF rule 42 allows one pump per wave only IF that is to induce planning. So the Finn is basically just using rule 42 correctly.

What is never going to be entirely clear for any dinghy is where the line is in regards to rule 42 and usually young bendy people being 'kinetic' in a boat. As I understand it the rules basically say you can't except to induce a roll tack.


Edited by SimonW99 - 06 Aug 15 at 8:27am
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Rupert View Drop Down
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Posts: 8956 		Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 06 Aug 15 at 7:32am
Once the wind is light, the Finn pumping switches off. I really hope the Aero CA has a very strict view on pumping, given the difference it will make on such a light boat.
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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 05 Aug 15 at 3:23pm
The JC strap is not key on the aero, but in the very light helps keep the light boom forward. If you used it as an effective return spring for 'pumping' then I would assume it may fall foul of rule 52, but the whole question of pumping is a moot point. The Finn has specific rules which I believe permit one pump per wave and Sir Ben's Olympic coverage showed that to its max. I don't know what the class rule for the solo says, but I have certainly observed plenty of pumping! The aero can certainly be pumped along quite impressively in light winds as it is itself so light, but there is no set in stone view as what is acceptable.
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Posts: 1345 		Post Options Post Options   Quote davidyacht Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jul 15 at 12:56pm
Originally posted by Peaky


How does that fit with Rule 52 Manual Power?

I shall await comments from a higher authority, but the operation of the bungee is by a combination of the power of the crew and the pressure of the wind, no different to the sheets or controls on a boat ... This does beg the question of Rule 52, that as this rule is written the pressure of the wind to let a sail out contravenes the rule ... No doubt there is an appeal or interpretation that deals with this.
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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jul 15 at 12:25pm
Originally posted by davidyacht

Some windward heel is fast on the Solo when running by the lee.  Equilibrium with no pressure on the rudder downwind has to be fast.  I am not sure that the bungee assists cheating, but it does stop the boom bouncing around and knocking the wind out of the sails if there is any chop.  If there is any pressure and no chop the bungee is probably more of a hindrance since it tends to tighten the leech.  In seven years of Solo sailing I have never experienced unintended gybing due to the boom bungee tension.

How does that fit with Rule 52 Manual Power?
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jeffers View Drop Down
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Posts: 3048 		Post Options Post Options   Quote jeffers Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jul 15 at 12:03pm
Originally posted by Medway Maniac

Originally posted by piglet

I've never seen it done Solos.

Like this, you mean?



Exactly like that and that is about as far as they go usually.
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Medway Maniac View Drop Down
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Posts: 2788 		Post Options Post Options   Quote Medway Maniac Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jul 15 at 11:35am
Originally posted by piglet

I've never seen it done Solos.

Like this, you mean?
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davidyacht View Drop Down
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Posts: 1345 		Post Options Post Options   Quote davidyacht Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jul 15 at 11:17am
Some windward heel is fast on the Solo when running by the lee.  Equilibrium with no pressure on the rudder downwind has to be fast.  I am not sure that the bungee assists cheating, but it does stop the boom bouncing around and knocking the wind out of the sails if there is any chop.  If there is any pressure and no chop the bungee is probably more of a hindrance since it tends to tighten the leech.  In seven years of Solo sailing I have never experienced unintended gybing due to the boom bungee tension.
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Chris 249 View Drop Down
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Posts: 2041 		Post Options Post Options   Quote Chris 249 Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jul 15 at 10:51am
Originally posted by laser193713

I notice there are already a couple on the site for sale. One of them specifies a "downwind boom stabiliser"... What is one of those?!

Is the aero fitted with an especially unstable boom???

Dunno about the Aero, but I'm going to use that excuse next time I roll into windward.

"Nope, I wasn't being a klutz - I just have an especially unstable boom and even my mad skillz weren't enough to compensate."
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