Keeping the daggerboard down

Discussion in 'Laser Talk' started by usa318, Aug 27, 2011.

  1. usa318

    usa318 New Member

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    I have recently bought a new laser. I have sailed in the past and never noticed the daggerboard raising (in all conditions) as much as it does currently.

    I'm using relitivly thick one strand bungie connected to the bow eye, traveling along one side of the mast. The bungie appears to sit in between the control cleats on the deck at a slight angle.

    Are there any rigging solutions for this? Would I be better off with a continious bungie passing through the board and on both sides of the mast?

    Any suggestions would be greatly apprecaited, I can't stand having to slam it down all the time.

    Thanks!
     
  2. ChalmersP

    ChalmersP Member

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    It sounds like I have the same setup as you, but I have a little piece of line, 1/8" or smaller, that is tied like a retainer between the deck blocks. When you have your bungee rigged through there, it prevents it from getting caught in the vang at the leeward mark.
     
  3. harpo

    harpo Member

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    Mine does the same thing -- damned new boat is so slick the daggerboard won't stay down. Still trying to figure it out myself.
     
  4. marginal

    marginal Member

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    Things that help (in order of effectiveness in my experience)
    1. Put a small peice of velcro (loop side) in the front of the daggerboard trunk, as per the class rule change allowing htis last year. Also prevents wear
    2. Concentrate of keeping the flow constant on the board. It pops up when the flow over the board changes. I didn't expain that very well
    3. Have your bungee just tight enough, not over tight
    4. Ensure the brake is new and properly adjusted

    The above works for me. Some boats seem to be worse than others.
     
  5. Wavedancer

    Wavedancer Upside down? Staff Member

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  6. laser11

    laser11 Member

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    I have the same problem, I find it pops up when I tack and then I have to reach in and hit it down (or kick it with my heel). I find if I can stuff some control line in the gap between the board and the trunk before the start (once settings adjusted) it helps keep it down.
     
  7. AlanD

    AlanD Former ISAF Laser Measurer

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    A quick glance at that APS system makes me think that it's not legal. Jean Luc can rule on it, but the rule says
    Basically you can't have both a tie line and shock cord. The issue is not with the yellow line permanently fixed to the centreboard, but the blue line that is permanently attached to the shockcord. Also the "handle" to help remove the clip would be considered IMO to be a "new fitting" which is also deemed illegal.

    The tie down system mentioned above is also obviously illegal.
     
  8. Sailorchick

    Sailorchick Member

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    Make sure your centre board brake is in good condition and correctly positioned.

    Put velcro (as per class rules) on front of the centreboard case.

    With these set up correctly your board will stay put without the elastic
     
  9. Wavedancer

    Wavedancer Upside down? Staff Member

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    Thanks for pointing that out; I will save my money....
     
  10. AlanD

    AlanD Former ISAF Laser Measurer

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    Sometimes I wonder if these people that try to commercialise their ideas bother to read the rules or ask if what they are suggesting is legal. Actually that probably goes for everyone.
     
  11. Soggy Bottom

    Soggy Bottom New Member

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    Hello Alan,
    Thanks for always replying to these rules questions....The last sentence of the rule states "Attachment can be by knots or loops in the shock cord, and/or tie lines". Doesn't this mean that you can attach the shock with a tie line?
     
  12. AlanD

    AlanD Former ISAF Laser Measurer

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    Reading that last sentence is pretty mudling , it's very badly worded. I might leave this one to Clive and Tracy to sort out with Jean-Luc. But yes, you can use a piece of line to attach the shockcord, typically you do this with the loop of cord which passes through the hole of the front of the centreboard, in combination with a hook or clip.
     
  13. SFBayLaser

    SFBayLaser Member

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    Interestingly, Jean-Luc Michon saw the APS ad when reading the Summer issue of The Laser Sailor and immediately sent an email to me saying they were advertising an illegal set up. So, no question in his mind. I believe he and the designer of this set up at APS are now in communication over what the issue is exactly and what modifications they can make to satisfy the rules.

    This is speculation on my part but I believe the primary issue centers on the question of when does a tie line stop being a tie line and start to have another function. Clearly having the tie line long enough to lay between the deck cleats gives it another function - to help prevent the board from rising. But this is just my guess as to Jean-Luc's issue with this and I think we have to wait to see what he and the APS representative come up with.
     
  14. torrid

    torrid Just sailing

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    I'm not saying it is the best was to improve the rules., but in some cases these one-off ideas become adopted as legal. For example, metal spring clips in the auto-bailer.
     
  15. AlanD

    AlanD Former ISAF Laser Measurer

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    I'm not disagreeing Torrid, in fact like the Bottleport, both idea have merrit and probably require the rules to be amended, but as the rules are currently written both are illegal. What my issue is with this system is that APS is producing something commercially and specifically targeting the Laser class without finding out if it's legal. If someone has an idea, try it out, develop it in a non racing environment and then approach the technical committee to determine if it's legal or if they consider it significant enough for the rules to be altered, it doesn't matter if some bloke who only sails in some backwater club, a potential Olympian or someone with significant commercial interests.
     
  16. laserxd

    laserxd Member

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    I did the same idea as this on my boat, it works very well, no one has called me out on it yet for being "illegal" even its not technically legal the rules should be changed asap because it does do its job unlike the oem intended setup

    I believe you are permitted to put velcro or rigging tape on the top front of the daggerboard trunk to help keep the board down, this helps as well
     
  17. AlanD

    AlanD Former ISAF Laser Measurer

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    Let's be frank, technically it is illegal. But since you believe the rules should be changed, what have you done to get the rule changed? It's up the sailors to get rule changes considered, not the technical / measurement committee of the ILCA.
     
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  18. laserxd

    laserxd Member

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    I've never changed a rule, how do we go about it?
     
  19. AlanD

    AlanD Former ISAF Laser Measurer

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  20. APS – Stern Scoop

    APS – Stern Scoop New Member

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    Hi All,
    APS has been in communication with ILCA Chief Measurer (Jean-Luc Michon) for several months now regarding our Pro Daggerboard Downhaul Kit (http://bit.ly/APSLaserProDaggerboardUpgrade). He met recently with the Laser Class Measurement Committee - and he has just informed us that they have determined that the APS system is class Legal because rule 14.f allows for multiple forms of attachment. We are happy to continue to provide this system along with many others for the Laser to help our customers get the most out of their boats.
     

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