Rick, Sorry for not replying sooner. I had to go down to the boat to get the numbers. Lower Shroud 10% of breaking strength (210 lbs) 25 on Loos gauge Upper Shroud 15% of breaking strength ( 315 lbs) 32 on Loos gauge Hope this helps. Joe ----- Original Message ----- From: Rick Davies To: For and about Montgomery Sailboats Sent: Tuesday, March 05, 2013 4:20 PM Subject: Re: M_Boats: Shroud tension Joe, What tension did you put on the upper and lower shrouds? Thanks, Rick M-17 #633 Lynne L Joe Murphy <seagray@embarqmail.com> wrote:
I too had problems "figuring out what's snug and what's tight" so I went with the advice to use the Loos. They're expensive ($75) but now I realize that what I thought was tight was terribly loose. Joe SeaFrog
----- Original Message ----- From: Rick Davies To: For and about Montgomery Sailboats Sent: Tuesday, March 05, 2013 10:18 AM Subject: Re: M_Boats: Shroud tension
Dave,
I noticed the email in which you mentioned a youTube video on shroud adjustment, but couldn't find it on youTube. If you did upload it, could you pass on the link? Since the only advice I've heard on M-17 shroud tensioning is "snug, but not tight", I'd like to find some way of figuring out what's snug and what's tight.
Thanks,
Rick M-17 #633 Lynne L
On Tue, Feb 26, 2013 at 7:12 PM, W David Scobie <wdscobie@yahoo.com> wrote:
Tom:
SWEET PEA's, my M17, lee shrouds (upper and lower) are loose when going to weather ... when blowing a lot less than 25.
i have shrouds just loose enough that i can get the mast up and down without adjustment (i just adjust the backstay).
the lowers should be a bit looser than the uppers.
i have a video that Eldor (aka, 1/2 of the good ship MOTU ITI) helped me make last summer. about 35 seconds showing how 'snug' (Jerry's term) the shrouds are on SWEET PEA. i'll upload the vid to youTube this evening and share the link.
:: Dave Scobie :: M17 #375 SWEET PEA - www.m17-375.webs.com
--- On Tue, 2/26/13, Tom Jenkins <tjenk@gte.net> wrote:
Hi gang, I am usually too busy under such conditions, but I noticed that the lower lee shrouds on my M17 show a little slack when I beat to weather at wind speeds over 25 knots. I am reluctant to start a tightening regime because the shrouds are just loose enough for me to raise and lower the mast without loosening and tightening the turnbuckles each cycle. Should I be concerned with the situation? Can one expect some permanent stretching of the shrouds with use? Will the presumed slight bowing of the mast to leeward be a problem?
Thanks in advance for your comments.
Tom Jenkins M17 Scintilla