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filling the Keel With LEED
Posted: Wed Sep 07, 2011 12:44 am
by comi_cozi
Re: filling the Keel With LEED
Posted: Wed Sep 07, 2011 1:33 am
by K9Kampers
filling the keel with LEED
LEED: Low-Energy Electron Diffraction ??
LINK
Re: filling the Keel With LEED
Posted: Wed Sep 07, 2011 3:29 am
by Fxwg80hd
Smilies can be over used...
Re: filling the Keel With LEED
Posted: Wed Sep 07, 2011 5:02 am
by Divecoz
Its been done before..Look in the search engine.. Some have been happy others ? Not so..

Lead doesnt rust..

Re: filling the Keel With LEED
Posted: Wed Sep 07, 2011 12:25 pm
by kitcat
I suppose that if you are considering filling the keel with lead, it would need some strengthening in other places, as well as mods to the hauling lines and pulleys. After that, maybe one should be thinking along the lines of a weighted wing keel or something similar, which when retracted flush with the hull, the boat could sit on.
Sounds like a special keel should be moulded for this. Has it been done yet?
Paul
Re: filling the Keel With LEED
Posted: Wed Sep 07, 2011 12:56 pm
by robbarnes1965
I would not do it.
Having destroyed 2 daggers I was very happy each time to see absolutely no damage to the hull. Replacing a dagger is easy (if you are not careful enough to get it damaged in the first place) and relatively cheap. Then there's rigging it so you can actually raise it.
I find the Mac sails fine as is.
Rob
Re: filling the Keel With LEED
Posted: Wed Sep 07, 2011 1:53 pm
by pokerrick1
Re: filling the Keel With LEED
Posted: Wed Sep 07, 2011 2:35 pm
by Divecoz
By Filling .... we mean adding a 150lbs of lead, and its very doable and is said to be beneficial.. The Flush Mount Wing Keel has been done already as well and we had a long thread this past spring about it..Weight and a Wing are on my list , of to does when I find the time..
Re: filling the Keel With LEED
Posted: Wed Sep 07, 2011 2:59 pm
by Russ
Yea, it's been done.
Remember, the M dagger is hollow and thin. Adding weight means adding more strength so it won't snap off or bulge at the bottom. The X, I dunno how you would do it. A solid metal board?
Re: filling the Keel With LEED
Posted: Wed Sep 07, 2011 4:12 pm
by Seapup
Here is one of the original threads and mod pages for adding lead to the X.
http://macgregorsailors.com/modt/index.php?view=460
http://macgregorsailors.com/phpBB/viewtopic.php?t=1495
Erik do you have any updates, insights, or advice about the mod?
Re: filling the Keel With LEED
Posted: Wed Sep 07, 2011 4:27 pm
by Highlander
Re: filling the Keel With LEED
Posted: Thu Sep 08, 2011 2:12 am
by Divecoz
I cannot even imagine the effort needed to fill and empty sand from a DB.. Good idea Jon but I .... dont see it a plausible..
Re: filling the Keel With LEED
Posted: Thu Sep 08, 2011 8:27 am
by RobertB
Forget Leed or sand - try filling the daggerboard with some heavy water

Re: filling the Keel With LEED
Posted: Thu Sep 08, 2011 1:06 pm
by Russ
Why not fill the dagger with depleted uranium?
Heavier than lead.
Re: filling the Keel With LEED
Posted: Thu Sep 08, 2011 2:25 pm
by DaveB
I took out my centerboard as I found the head was split were they fitted the two pieces together. I put 3 layers or mat and featered it out so no one can see it has been repaired. I than mixed up a gal. of polyester resin 1/2 gal. at a time) and pumped it into the weep holes on both sides and let it settle to the bottom of centerboard than once hard I end for end it and pored remaining 2 quarts in the head board , I taped off the bolt holes once it was close to them and redrilled.
I did it to reinforce the inside of the board. There is still hollow area close to the weep hole but I was trying to balance weight. I probably added 9 lbs of Resin and board is much stronger.
I also changed centerboard line to all braded haveing a rigger splice in a very tight eye for the bolt to pass thru.
I need a roller at the deck to make it much easier lifting the centerboard.
You can add lead pellits and resin in but you will need some kind of lifting device (maybe a 3-4 to 1 pully).
Probably around 100 lbs lead would be max. that would fit in and I think there are cross sections that could prevent the pellits from getting to bottom.
Dave