| Nacra 5.8 fix up #138868 04/01/08 09:15 PM 04/01/08 09:15 PM |
Joined: Mar 2008 Posts: 57 Minneapolis Mpls_Nacra OP
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Posts: 57 Minneapolis | I am fixing up my 5.8. I just purchased new decks. The big concern I have is the softness of the hulls. the port hull also takes on water(not sure from where) I was thinking of laying a new sheet of FBGlass along the whole hull on the inside. How firm should the hulls be. Is this just a bad idea? I dont race it, I just want it to be solid and safe, and to last a while.
Dave Foster Minneapolis Nacra F16
| | | Re: Nacra 5.8 fix up
[Re: Soapysails]
#138870 04/01/08 09:33 PM 04/01/08 09:33 PM | Anonymous
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Doug | | | Re: Nacra 5.8 fix up
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#138871 04/01/08 10:00 PM 04/01/08 10:00 PM |
Joined: Mar 2008 Posts: 57 Minneapolis Mpls_Nacra OP
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Posts: 57 Minneapolis | Great idea..... what about the "softness" of the hulls? i was trying to right it and thought my foot would go through the side wall? that cant be normal... how firm should that be?
Dave Foster Minneapolis Nacra F16
| | | Re: Nacra 5.8 fix up
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#138875 04/02/08 10:29 PM 04/02/08 10:29 PM |
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Posts: 57 Minneapolis | By Soft, if i am using the righting lines, and pushing against the hull, it feels too soft. but if i walk up and push, then it feels reasonable, just a little give. I have had people tell me that this is normal. Is it? ???? i am considering just putting a layer of FBglass in the whole inside. what do you think?
Dave Foster Minneapolis Nacra F16
| | | Re: Nacra 5.8 fix up
[Re: TeamChums]
#138877 04/03/08 11:44 AM 04/03/08 11:44 AM |
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Posts: 57 Minneapolis | So how much "give" should the hulls have on the sides? i don't want to add weight unnecessaryly, but i want it to be safe and strong.
Dave Foster Minneapolis Nacra F16
| | | Re: Nacra 5.8 fix up
[Re: Mpls_Nacra]
#138878 04/03/08 05:54 PM 04/03/08 05:54 PM |
Joined: Sep 2007 Posts: 757 japan erice
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Posts: 757 japan | keep in mind that a nacra usually has a lot more hull volume than an equivalent sized hobie, but much the same weight
meaning those larger nacra hulls must be made thinner
also i think most/all? hobies have been made with the foam sandwich technique which is stiffer than the early 80's nacra single glass layup
so in general a 1983 hobie hull will feel stiffer all over than a 1983 nacra hull
so if both your nacra hulls seem to flex the same amount all over the boat then they are either completely stuffed, and beyond saving, or it is quite normal for a nacra
eric e 1982 nacra 5.2 - 2158 2009 weta tri - 294
| | | Re: Nacra 5.8 fix up
[Re: erice]
#138879 04/03/08 10:16 PM 04/03/08 10:16 PM |
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Posts: 57 Minneapolis | so either i am screwed or it is normal. How can i tell? quite the conundrum.
Dave Foster Minneapolis Nacra F16
| | | Re: Nacra 5.8 fix up
[Re: Mpls_Nacra]
#138880 04/04/08 03:41 AM 04/04/08 03:41 AM |
Joined: Sep 2007 Posts: 757 japan erice
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Posts: 757 japan | i don't know of a way to tell from a distance but it seems to me from what you've said that it's normal
what is important on old nacras is that your bulkheads, 5.8, are still solid and without cracks and on 5.2's that the stringers forward of the main beam are still bonded to the hulls
have you turned up the cracking bulkhead issue in any searches yet?
eric e 1982 nacra 5.2 - 2158 2009 weta tri - 294
| | | Re: Nacra 5.8 fix up
[Re: erice]
#138881 04/04/08 08:26 AM 04/04/08 08:26 AM |
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Posts: 57 Minneapolis | no, there are no cracks along the bulk heads. The decks are very soft, i have new ones comming.
Dave Foster Minneapolis Nacra F16
| | | Re: Nacra 5.8 fix up
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#138882 04/04/08 08:56 AM 04/04/08 08:56 AM |
Joined: Aug 2003 Posts: 351 Santiago, Chile Andinista
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Posts: 351 Santiago, Chile | the port hull also takes on water(not sure from where) I was thinking of laying a new sheet of FBGlass along the whole hull on the inside. I had very old hulls that were taking water, with soft spots and all. I couldn't find where exactly they leaked and I decided to change the plugs, without any conviction, just to discard that possibility, and It solved the problem. Then I replaced the hulls with newer ones (still used). And one of them was taking water again, but now the plugs looked better and were newer. But I checked them anyway, and one of the screws was sort of loose (don't know the transaltion, it's "rodado" in spanish). I took the plug out, and realised that I needed to rotate it and drill another hole for the srew. Put it back, sealed it correctly and, one more time, no water on the hull.
Last edited by Andinista; 04/04/08 09:04 AM.
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