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BBSCFaithfull View Drop Down
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Joined: 06 Dec 05
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Posts: 1251 		Post Options Post Options   Quote BBSCFaithfull Quote  Post ReplyReply Direct Link To This Post Topic: Tiger Trophy
    Posted: 07 Feb 08 at 12:27pm
The foils let go on  tightish 3 sail reach when hoppo was crewing for me. Resulted in a pitchpole!
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Strangler View Drop Down
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Posts: 154 		Post Options Post Options   Quote Strangler Quote  Post ReplyReply Direct Link To This Post Posted: 07 Feb 08 at 2:13pm

Originally posted by Dryshirt UK

Has anyone located any pictures from the event other than those on the Rutland SC site ?

I took over a 100 from the shore, mainly at first gybe mark, race 1 and 2, zoom camera not SLR, some decent ones. Anyone recommend a free site to load them up to?
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Smight at BBSC View Drop Down
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Posts: 1129 		Post Options Post Options   Quote Smight at BBSC Quote  Post ReplyReply Direct Link To This Post Posted: 07 Feb 08 at 2:29pm

Flickr is easy to use but was quite slow on  my pc. It is free for 100 photos, or 100mb can't remember which, a month but you have to pay after that. The 600 foils havn't let go yet which is all good but i have pitchpoled her which was interesting.

Cheers 

Smight at BBSC 



Edited by Smight at BBSC
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RyanV49er View Drop Down
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Posts: 217 		Post Options Post Options   Quote RyanV49er Quote  Post ReplyReply Direct Link To This Post Posted: 07 Feb 08 at 4:21pm
When the rudder "lets go" and cavitates (or sucks air down onto the blade), wiggling actually helps the water re-attach and will give you your steerage back.  I wouldn't try it on the 49er, just keep the boat flat, but on slower classes it works a treat.
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tgruitt View Drop Down
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Posts: 2479 		Post Options Post Options   Quote tgruitt Quote  Post ReplyReply Direct Link To This Post Posted: 07 Feb 08 at 4:38pm
Originally posted by RyanV49er

When the rudder "lets go" and cavitates (or sucks air down onto the blade), wiggling actually helps the water re-attach and will give you your steerage back.  I wouldn't try it on the 49er, just keep the boat flat, but on slower classes it works a treat.



Just to clear things up, rudders do not cavitate, they ventilate.


Edited by tgruitt
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Chris Bridges View Drop Down
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Posts: 699 		Post Options Post Options   Quote Chris Bridges Quote  Post ReplyReply Direct Link To This Post Posted: 07 Feb 08 at 6:01pm

Originally posted by RyanV49er

When the rudder "lets go" and cavitates (or sucks air down onto the blade), wiggling actually helps the water re-attach and will give you your steerage back.  I wouldn't try it on the 49er, just keep the boat flat, but on slower classes it works a treat.

I wouldn't on a 29er either.. Only boat I ever do it on is 420s because the do it so often... Or our rubbish school boats do.
49er GBR735 (for sale) - Rutland SC
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Merlinboy View Drop Down
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Posts: 3169 		Post Options Post Options   Quote Merlinboy Quote  Post ReplyReply Direct Link To This Post Posted: 07 Feb 08 at 6:04pm
I thiought you said you wouldnt wiglle the rudder!?
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Chris Bridges View Drop Down
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Posts: 699 		Post Options Post Options   Quote Chris Bridges Quote  Post ReplyReply Direct Link To This Post Posted: 07 Feb 08 at 6:36pm
I can't type. Wiggle, and actually I said Winggling
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RyanV49er View Drop Down
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Posts: 217 		Post Options Post Options   Quote RyanV49er Quote  Post ReplyReply Direct Link To This Post Posted: 07 Feb 08 at 7:31pm
Originally posted by tgruitt

Originally posted by RyanV49er

When the rudder "lets go" and cavitates (or sucks air down onto the blade), wiggling actually helps the water re-attach and will give you your steerage back.  I wouldn't try it on the 49er, just keep the boat flat, but on slower classes it works a treat.



Just to clear things up, rudders do not cavitate, they ventilate.


That's what I meant when I said "sucks air down the blade".  I've seen the long discussion over cavitation, but couldn't be bothered to try to explain it all over again.  Oh well, I guess I failed... Anyway, sailors know it as cavitation, so why try to confuse them
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tgruitt View Drop Down
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Posts: 2479 		Post Options Post Options   Quote tgruitt Quote  Post ReplyReply Direct Link To This Post Posted: 07 Feb 08 at 7:34pm
Originally posted by RyanV49er

Originally posted by tgruitt

Originally posted by RyanV49er

When the rudder "lets go" and cavitates (or sucks air down onto the blade), wiggling actually helps the water re-attach and will give you your steerage back.  I wouldn't try it on the 49er, just keep the boat flat, but on slower classes it works a treat.



Just to clear things up, rudders do not cavitate, they ventilate.


That's what I meant when I said "sucks air down the blade".  I've seen the long discussion over cavitation, but couldn't be bothered to try to explain it all over again.  Oh well, I guess I failed... Anyway, sailors know it as cavitation, so why try to confuse them



Ventilation = Sucking air from the surface down the face of a submerged foil.
Cavitation =  The process where a void or bubble in a liquid rapidly collapses, producing a shock wave.
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