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24-10-2008, 17:07
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#1
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Registered User
Join Date: Oct 2008
Location: Charleston, SC
Boat: 1975 Morgan 40 Classic
Posts: 22
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Standing Rigging
I have a 40' Ketch, how tight should the rigging be? It seems to be too loose to me.
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1975 Morgan 40 Classic
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24-10-2008, 17:15
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#2
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Registered User
Join Date: Mar 2003
Location: Philippines in the winters
Boat: It’s in French Polynesia now
Posts: 11,372
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Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
The measure of a man is how he navigates to a proper shore in the midst of a storm!
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24-10-2008, 17:22
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#3
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Registered User
Join Date: Oct 2008
Location: Charleston, SC
Boat: 1975 Morgan 40 Classic
Posts: 22
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OK, but in general should they be so loose that they hang loose when the boat is heeled over?
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1975 Morgan 40 Classic
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24-10-2008, 17:38
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#4
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Registered User
Join Date: Mar 2003
Location: Philippines in the winters
Boat: It’s in French Polynesia now
Posts: 11,372
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Quote:
Originally Posted by ilikeraresteak
OK, but in general should they be so loose that they hang loose when the boat is heeled over?
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Maybe in a 25+ knot wind on a reach or closehaul, more likely at 30º + heeling. But that depends on the boat. I don't know much about the construction of a 40 Morgan. Usually anything over 30º is a waste of air.
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Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
The measure of a man is how he navigates to a proper shore in the midst of a storm!
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24-10-2008, 18:38
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#5
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Registered User
Join Date: May 2006
Location: Nicholasville, Kentucky
Boat: 15 foot Canoe
Posts: 14,191
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Aloha Rare,
Having had an old wood ketch many years ago (which is totally inappropriate for this thread) I used to tighten the rigging so that there was no flopping about when the boat was in its slip. Not a twang like a guitar string but just short of that. You must anticipate that your leeward shrouds will be slack when you are underway and close hauled. They should not be slack enough to have your spreaders flopping about and in danger of coming lose or slipping off the shrouds.
There will be other responses I'm certain but that should get you started.
kind regards,
JohnL
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24-10-2008, 20:07
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#6
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Registered User
Join Date: Oct 2008
Location: Charleston, SC
Boat: 1975 Morgan 40 Classic
Posts: 22
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thanks for the help
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1975 Morgan 40 Classic
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25-10-2008, 04:06
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#7
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Senior Cruiser

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 51,756
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Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"
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25-10-2008, 05:23
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#8
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Registered User
Join Date: Aug 2008
Posts: 275
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Speaking generally,when the boat is heeled over ,a bit of slackness in the lee shrouds is OK.But they shouldnt be "sloppy".
Look up the mast when heeled over.Its OK for the top of the mast to curve off a bit but any "sqiggles" should be tuned out.
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25-10-2008, 09:04
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#9
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Registered User
Join Date: Oct 2008
Location: Charleston, SC
Boat: 1975 Morgan 40 Classic
Posts: 22
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ok thanks
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1975 Morgan 40 Classic
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25-10-2008, 12:39
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#10
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cruiser
Join Date: Sep 2007
Location: Tampa to New York
Boat: Morgan 33 OutIsland, Magic and 33' offshore scott design "Cutting Edge"
Posts: 1,594
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Morgan manual says about the same as earlier posts. final tensioning is done under sail in moderate to strong winds sailing upwind. Take slack out of leeward shroud counting turns then turn in other shroud same amount when not under tension. Read one article about dockside tensioning that stated all 1x19 wire should have 3 mm stretch over 2 meter length. done with tape and 2 meter rule.
forsailbyowner
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26-10-2008, 20:21
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#11
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Registered User
Join Date: Nov 2006
Location: Back in Northern California working on the Ranch
Boat: Pearson 365 Sloop and 9' Fatty Knees.
Posts: 10,488
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I feel there is way too much emphases placed on rigging tension. Nonam's solution is the way I do it. Beware though that rigging over-tightened on a poorly constructed boat will actually "bend" the boat. Another method I use to see if anything is going on is to "sound" the wires with a stick. Whack the wires and it should sound like a lazer guns from a Star Wars movie. Sounds weird but works for me. If one wire is lose, it will have a lower tone than it's opposite counter-part. No sound at all is way under tensioned.
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