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Death roll recovery

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Jamesd View Drop Down
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Post Options Post Options   Quote Jamesd Quote  Post ReplyReply Direct Link To This Post Posted: 12 Dec 09 at 11:43am
pushing the rudder away from you to point up when the boat is heeled to windward is very unnatural, it feels awful, as the boat is trying to bear away and you are trying to stop it, its very slow!

pulling the rudder towards you is the correct way to do it, no if's or buts. you dont have to bear away too much, a sharp stab is usually enough to bring it flat again, if you dont want to bear off on a long arc.
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Rupert View Drop Down
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Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 12 Dec 09 at 1:13pm
I always thought the bearing away thing is for when you are sailing by the lee, as effectively the sail is reversed. When on a run but not by the lee, luffing up will be the way to save yourself. I think I'd like some warmer water to fall into than we currently have to figure out which one works better when!
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GarethT View Drop Down
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Post Options Post Options   Quote GarethT Quote  Post ReplyReply Direct Link To This Post Posted: 12 Dec 09 at 2:21pm

My understanding is that it has very little to do with the sail, and it's all about using the lift from the rudder to get the boat level.

If you push the tiller the lift acts in the opposite way and pulls the boat over on top of you.

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Jamesd View Drop Down
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Post Options Post Options   Quote Jamesd Quote  Post ReplyReply Direct Link To This Post Posted: 12 Dec 09 at 2:37pm
you are correct GarethT, it is all to do with the lift of the rudder rather than anything to do with the sails or your angle to the wind.

to test this without gettig wet, just find a boat with a cradle trolley, like an RS4/200, put it on the trolley as if its heeled, put the rudder on and then grab hold of the rudder blade and physically pull towards whatever gunwhale is higher, you will see the boat tries to heel even more.  this demonstrates pushing the tiller away when the boat is heeled to windward, or pulling the tiller towards you when heeled to leeward.

http://www.roostersailing.com/merchant2/merchant.mvc?Screen= hints&Store_Code=1 then click on the 4th dimension link.  this explains the theory quite well with some videos
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tickler View Drop Down
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Post Options Post Options   Quote tickler Quote  Post ReplyReply Direct Link To This Post Posted: 12 Dec 09 at 4:47pm
I always thought that death roll was caused by wind spilling from the top of the sail pushing the mast sideways to windward, when it goes too far the righting moment forces shove the boat back and the rock and roll starts. Am I wrong then?
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Post Options Post Options   Quote zailor Quote  Post ReplyReply Direct Link To This Post Posted: 12 Dec 09 at 7:09pm

Im so gald I was right to question the Byte class video guite

 

I did think that heading up would make the death part come faster.
Hoever today I did try simply pumping the sail and to be fair it did stop the roll.
I did induce the roll by letting out too much sheet but one tug did bring it upright.

The "rooster roll" by pushing down on the opposite gunnel did seem to add speed so a good tug on the sheet seems to fix it if im in a tight area surouned boy boats but the bear away which was my initial instinct does seem to beat the CII class video's

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Post Options Post Options   Quote Jon711 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Dec 09 at 7:30pm
My usual death roll recovery, is breaststroke!!!!!  Not a great help but the unfortunate truth..
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Strangler View Drop Down
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Post Options Post Options   Quote Strangler Quote  Post ReplyReply Direct Link To This Post Posted: 12 Dec 09 at 11:00pm

Originally posted by zzzz

When you are in a death roll situation, as in: if you do nothing you are going swim, the boat is already coming on top of you, kind of situation (hence the name DEATH ROLL, traditionally this is accompanyed by panic, a brown wetsuit and.....

Now now you naughty boys and girls you are not allowed to call it a death roll, it scares beginners. Sailing schools call it a SPEED WOBBLE. After hearing this from an instructor sailing in the FD fleet we decided to call it a PINK FLUFFY KITTEN. You could never get scared of that could you! Ha!



Edited by Strangler
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Post Options Post Options   Quote jeffers Quote  Post ReplyReply Direct Link To This Post Posted: 13 Dec 09 at 8:30am
Originally posted by Strangler

Now now you naughty boys and girls you are not allowed to call it a death roll, it scares beginners. Sailing schools call it a SPEED WOBBLE. After hearing this from an instructor sailing in the FD fleet we decided to call it a PINK FLUFFY KITTEN. You could never get scared of that could you! Ha!

I call it an 'oh b******s', normally about 0.2s before I hit the water

Paul
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tickler View Drop Down
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Post Options Post Options   Quote tickler Quote  Post ReplyReply Direct Link To This Post Posted: 13 Dec 09 at 9:49am
It's called "Death Roll" because the outcome is inevitable like death, not because it will cause death. No problem for the "undead" then, (GRF) ?
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