Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 07-11-2009, 07:21   #1
Don't ask if you can't handle it
 
sailorboy1's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: On the boat somewhere
Boat: Hunter 410
Posts: 12,311
Running Rigging Sizing

This seems a basic question, but I have not come across it it in the various books I have:

Is there some chart etc for sizing lines for your running rigging? The ones I've replaced so far I replaced with same as were on the boat, but who knows if those were correct to start with.
__________________

__________________
sailorboy1 is offline   Reply With Quote
Old 07-11-2009, 07:46   #2
Long Range Cruiser
 
MarkJ's Avatar

Cruisers Forum Supporter

Join Date: Dec 2007
Location: Australian living on "Sea Life" currently in England.
Boat: Beneteau 393 "Sea Life"
Posts: 12,828
Images: 25
Is yours a Cal 39?
There should be a standard rigging chart in the user manual. If you don't have one perhaps there is a Catalina forum that will.
Those standard charts are a good starting point as the blocks may all run that bit easier with the manufacturers correct specs.

In particular don't go any heavier with the genoa sheets as they might not sit in self tailers correctly etc.
__________________

__________________
Notes on a Circumnavigation.
OurLifeAtSea.com

Somalia Pirates and our Convoy
MarkJ is offline   Reply With Quote
Old 07-11-2009, 07:51   #3
Don't ask if you can't handle it
 
sailorboy1's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: On the boat somewhere
Boat: Hunter 410
Posts: 12,311
I'll look in my owners manual (don't remember seeing anything like this). But the boat got raced etc over the years, sails changed etc. so who knows if this is correct. I was thinking there was a sizing chart based on sail area or such that someone might know of. I'm in no rush, got 5-1/2 months to figure it out.
__________________
sailorboy1 is offline   Reply With Quote
Old 07-11-2009, 07:54   #4
Long Range Cruiser
 
MarkJ's Avatar

Cruisers Forum Supporter

Join Date: Dec 2007
Location: Australian living on "Sea Life" currently in England.
Boat: Beneteau 393 "Sea Life"
Posts: 12,828
Images: 25
Yes, racers tend to play with things! LOL
__________________
Notes on a Circumnavigation.
OurLifeAtSea.com

Somalia Pirates and our Convoy
MarkJ is offline   Reply With Quote
Old 07-11-2009, 08:32   #5
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,579
Images: 240
HARKEN’s website is a wealth of information:
Harken Inc.

Including

Tech Corner ➥ Harken Tech Corner

“Compu-Spec*” ➥ Harken Compu Spec

* with over 5000 keelboats (including 8 versions of the Cal 39) listed

and MUCH more ... Harken Inc.
__________________
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?"



GordMay is offline   Reply With Quote
Old 07-11-2009, 10:31   #6
Registered User

Join Date: Jul 2008
Location: Phoenix, Arizona
Boat: Pacific Dolphin 24 Hull #300, Grand Finale
Posts: 16
Sailboat owner's dot com has a running rigging calculator in the online store. Lot's of boats listed with factory specs. Running Rigging Calculator
__________________
sailinmike is offline   Reply With Quote
Old 08-11-2009, 06:35   #7
Don't ask if you can't handle it
 
sailorboy1's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: On the boat somewhere
Boat: Hunter 410
Posts: 12,311
Funny in that these calulators give smaller sheet lines than the boat currently has. But this is based on diameter size and in a way is meaningless as to me size should be measured as strength then diameter.
__________________
sailorboy1 is offline   Reply With Quote
Old 08-11-2009, 07:43   #8
Registered User

Join Date: Oct 2009
Posts: 134
I think most of us realize over the years the material for the lines have changed to allow using smaller diameter line for the same strengh. However several things need to be considered before changing the size.

Some include other hardware you have on the yacht. Clutches, self tailing winches, stoppers, and even how it feels in the hand. Most have ranges of line size that may be adjusted. The only thing that runs better with a smaller diameter is blocks. Hate to spend $200 on the line and find you need to spend another $1000 on upgrading the hardware it runs through. Also some of the newer high tech stuff allows to go very small but a 40 footer jib sheet of 1/4" won't feel good in hand when the wind kicks up.

Go to any of the cordage websites Yale, Newengland, Sampson etc. They give good advice on what will work.
__________________
gulfstar37 is offline   Reply With Quote
Old 08-11-2009, 10:08   #9
Registered User
 
Sunspot Baby's Avatar

Join Date: May 2003
Location: New Bern, NC
Boat: Prout Manta 38' Catamaran - Sunspot Baby
Posts: 1,521
Images: 14
I have no doubt that with improving technology, newer lines could be of smaller diameter but when I replace I always go with the same diameter to be sure it fits the sheaves and winches.

George
__________________
She took my address and my name
Put my credit to shame
Sunspot Baby, sure had a real good time
Bob Seger
Sunspot Baby is offline   Reply With Quote
Old 08-11-2009, 12:23   #10
Senior Cruiser
 
SkiprJohn's Avatar

Cruisers Forum Supporter

Join Date: May 2006
Location: Kea'au, Big Island, Hawaii
Boat: Cascade, Sloop, 42 - "Casual"
Posts: 14,192
On my boat it is what runs over sheaves, through blocks and feels good in my hands. The most important is what feels good in my hands. Any line that diameter is going to be plenty strong enough.
regards,
__________________
John
SkiprJohn is offline   Reply With Quote
Old 08-11-2009, 13:05   #11
Don't ask if you can't handle it
 
sailorboy1's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: On the boat somewhere
Boat: Hunter 410
Posts: 12,311
Yeah I agree. Took my sails down today for storage and I think the genny sheets are at least 3/4" even though the calculator says 7/16" for them. The current lines fit the winch well but is tight in the block (I ran them outside it last season) but they fit our hands well and are easy to hold onto to. Maybe the cost of the oversize lines is offset by being able to use low tech materials as there isn't a need to have the lines so strong that the sail rips instead of the line.
__________________

__________________
sailorboy1 is offline   Reply With Quote
Reply

Tags
rigging

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Need help sizing a boat heater Roy M Plumbing Systems and Fixtures 11 14-02-2009 09:52
Need help with prop sizing sailingmonica Propellers & Drive Systems 8 31-10-2008 11:50
Sizing Mooring Lines markpj23 General Sailing Forum 20 17-03-2006 09:35
Lines, ropes, running rigging? Strygaldwir Construction, Maintenance & Refit 37 17-11-2005 14:05
Ammeter Sizing svcattales Electrical: Batteries, Generators & Solar 7 01-09-2005 03:50



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 20:05.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.