Norm S/V Bandersnatch Lying Julington Creek 30 07.695N 081 38.484W
> [Original Message] > From: Eric T. <[email protected]> > To: <[email protected]> > Date: 5/16/2009 4:52:31 PM > Subject: Re: [Liveaboard] all chain rode > > Norm, > He plans on having multiple snubbers ON HAND. He will only use two snubbers > in extreme conditions. > > Personally I would expect the rubber 'shock xbsorbers' to handle all lower > conditions and size my rope snubber for the extreme condition. Maybe use two > different thicknesses of rubber snubber? > > Eric Thompson > S/V Procrastinator > South San Francisco > [email protected] > > ----- Original Message ----- > From: <[email protected]> > To: <[email protected]> > Sent: Saturday, May 16, 2009 6:31 AM > Subject: Re: [Liveaboard] all chain rode > > > > > > > > There seems to be something screwy with Mr. Kluznick's logic. > > > > Under the paragraph Line Size he states he wants four feet of stretch but > > will have to add more snubbers to get the desired SWL. However, adding > > snubbers will decrease the stretch as the load will then be spread over > > more snubbers. > > > > If one has 4 feet of stretch with on line then adding another of the same > > size will produce two feet of stretch (at the same load) since each line > > now has half the original load. > > > > A SWL of 15% of the ultimate breaking strength seems unrealistically low > > to > > me (I smell the company lawyers at work here). I would choose the line to > > give the stretch I want and ignore the stated 15% SWL in favor of, say, > > 50% > > of ultimate. > > > > For those "very conservative" folks one could rig a second snubber with a > > higher breaking strength and rig it slack to come into load when the first > > one stretches to the limit one desires. > > > > > > Norm > > S/V Bandersnatch > > Lying Julington Creek > > 30 07.695N 081 38.484W > > > > > > > > > >> I found this page while looking for something else. The gentleman deal > >> with snubbers in a very detailed manner. > >> > >> http://kluznick.com/files/Snubber_Design.doc > >> > >> Philip > >> -- > >> Philip Lange AE4OV > >> USSV ORYOKI > >> > > > > > > _______________________________________________ > > Liveaboard mailing list > > [email protected] > > To adjust your membership settings over the web > > http://www.liveaboardnow.org/mailman/listinfo/liveaboard > > To subscribe send an email to [email protected] > > > > To unsubscribe send an email to [email protected] > > The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ > > > > To search the archives > > http://www.mail-archive.com/[email protected] > > > > The Mailman Users Guide can be found here > > http://www.gnu.org/software/mailman/mailman-member/index.html > > _______________________________________________ > Liveaboard mailing list > [email protected] > To adjust your membership settings over the web http://www.liveaboardnow.org/mailman/listinfo/liveaboard > To subscribe send an email to [email protected] > > To unsubscribe send an email to [email protected] > The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ > > To search the archives http://www.mail-archive.com/[email protected] > > The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html _______________________________________________ Liveaboard mailing list [email protected] To adjust your membership settings over the web http://www.liveaboardnow.org/mailman/listinfo/liveaboard To subscribe send an email to [email protected] To unsubscribe send an email to [email protected] The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/[email protected] The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html
