Mainsheet System - Page 2 - SailNet Community
 1Likes
Reply
 
LinkBack Thread Tools
post #11 of 32 Old 10-22-2008
Once known as Hartley18
 
Classic30's Avatar
 
Join Date: Aug 2007
Location: Melbourne, Australia
Posts: 5,179
Thanks: 52
Thanked 84 Times in 84 Posts
Rep Power: 10
   
Dock
Quote:
Originally Posted by tdw View Post
...
It really is a great system. In many ways vastly superior to the standard system you see on most older boats .(4:1 purchase with a jaw jammer).
...
Actually, you might be surprised to discover how old this set-up is. Quite a few designs from Giles and Stephens (to name two) had end-boom sheeting arrangements that went back along the boom - but I digress...

My only gripes with this set-up (and it's just personal preference, I suppose) are (a) that when you're not hard on the wind, the sheets hang from the bottom of the boom (see below) which could be a bit nasty in an accidental gybe - hmm, headless Alex? - and (b) having the mainsheets leave the mast and go down for the deck as they do, does make for one more obstacle if you need to go forward in a blow:



..anyways, good luck with your project!

-
A bad day on a boat beats a good day in the office

Last edited by Classic30; 10-22-2008 at 10:44 PM.
Classic30 is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #12 of 32 Old 10-22-2008 Thread Starter
tdw
Super Fuzzy Moderator
 
tdw's Avatar
 
Join Date: Oct 2006
Location: Sydney Australia
Posts: 17,079
Thanks: 20
Thanked 125 Times in 116 Posts
Rep Power: 10
     
Quote:
Originally Posted by Hartley18 View Post
Actually, you might be surprised to discover how old this set-up is. Quite a few designs from Giles and Stephens (to name two) had end-boom sheeting arrangements that went back along the boom - but I digress...

My only gripes with this set-up (and it's just personal preference, I suppose) are (a) that when you're not hard on the wind, the sheets hang from the bottom of the boom (see below) which could be a bit nasty in an accidental gybe - hmm, headless Alex? - and (b) having the mainsheets leave the mast and go down for the deck as they do, does make for one more obstacle if you need to go forward in a blow:



..anyways, good luck with your project!
Headless Alex ? Headless Chicken ? AHA !! Headless PortuGeese.

They are the negatives yes, but we'll see. It was fine when we had the old Bluebird and just about bearable on the C28 but I'm not happy with the ratchet block setup we have now. Seems to me there are too many times when it becomes quite a struggle to release. Which of course is in a blow and she is desperately trying to round up and T-bone that ferry coming down the harbour. (Don't ask but yes , it did nearly happen once, albeit with the old rig and block. Scared the crap out of me I can tell you.)

Andrew B (Malö 39 Classic)

“Life is a trick, and you get one chance to learn it.”
― Terry Pratchett.
tdw is online now  
Quote Quick Reply Share with Facebook
post #13 of 32 Old 10-23-2008
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 17 Times in 13 Posts
Rep Power: 15
         
TDW-

It wouldn't affect GUI much... his brains are far lower.

Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
sailingdog is offline  
Quote Quick Reply Share with Facebook
post #14 of 32 Old 10-23-2008
Senior Member
 
Join Date: Aug 2006
Location: Norway
Posts: 913
Thanks: 8
Thanked 70 Times in 65 Posts
Rep Power: 10
 
Hi
Here in Europe this system is called "German sheeting", it can be used both with mid boom and end boom sheeting.

One some boats the two ends of the sheet are spliced into an endless loop, that way you will never run out of rope.

I have a similar setup on my Beneteu First 38 with mid boom sheeting, but I have a 1:4 purchase with 3 separate blocks on the boom and a fidle block on the traveller. The turning blocks are fixed with dyneema straps at the boom neck and the chainplate.

Mast is already down for the winter but I can try to find /take some pictures.

This winter I'm planning to do an improvement to make single/short handling easier.

I will mount two clutches, one on each side of the cockpit near the aft winches. That way I can use the aft winches for both jib and main sheet.

Leeward winch for the jib, windward winch for the main.

That way I can operate both sheets from behind the wheel..
knuterikt is online now  
Quote Quick Reply Share with Facebook
post #15 of 32 Old 10-23-2008
Thanks Courtney.
 
Join Date: Sep 2006
Location: IL
Posts: 3,954
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 12
     
Here in Europe this system is called "German sheeting", it can be used both with mid boom and end boom sheeting.

This obviously makes it a FAR superior arangment to the designs of the rest of the world. We could not possibly have come up with something so masterful since we are all idiots by comparison!

Sorry, all those years of working for a German company kinda pushed me over the edge.

hunter Legend 37 Semper Paratus
Formerly - Tartan 34C Yawl
T34C is offline  
Quote Quick Reply Share with Facebook
post #16 of 32 Old 10-23-2008
Senior Member
 
Join Date: Aug 2006
Location: Norway
Posts: 913
Thanks: 8
Thanked 70 Times in 65 Posts
Rep Power: 10
 
Hi TC34
No offence, i'm not German. I'm from Norway.

This setup has it pros & cons as other systems.

On my boat with mid boom sheeting the alternative would be the original setup with the main sheeted on a smaller winch on the coachroof.
knuterikt is online now  
Quote Quick Reply Share with Facebook
post #17 of 32 Old 10-23-2008 Thread Starter
tdw
Super Fuzzy Moderator
 
tdw's Avatar
 
Join Date: Oct 2006
Location: Sydney Australia
Posts: 17,079
Thanks: 20
Thanked 125 Times in 116 Posts
Rep Power: 10
     
Knut,

I'd be very interested see your pics when you get them. The clutch block in front of the sheet winches , which I've seen discussed before, seems like a damn good idea to me. OK so its commonly used for halyards where the lines come back to the cockpit but it would seem to make good sense for a sheet winch as well. Particularly on a cruising boat I would think.

T34,

I am ready to stand corrected here but I have a feeling that this sheeting arrangement first came to prominence on a boat in the German Admiral's Cup team back in 19blahdeblah when the Germans were pretty much Numero Uno (whoops Nummer Eins) in European yacht racing.

Andrew B (Malö 39 Classic)

“Life is a trick, and you get one chance to learn it.”
― Terry Pratchett.
tdw is online now  
Quote Quick Reply Share with Facebook
post #18 of 32 Old 10-23-2008
Senior Member
 
tomaz_423's Avatar
 
Join Date: Feb 2006
Location: Slovenia
Posts: 415
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 11
 
Yep, Knuterikt is right.
We also do call this arrangement German sheeting.
The major advantage is that you can fine trim the main on either side of the boat. While racing and sitting on winward rail you can always trim it using winward winch regardless of port or stbd. tack.
This way you keep your weight on the correct side of the boat.
Extra appreciated on smaller boats or small crew.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Beneteau Oceanis 473

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

finished cruising after two years.
tomaz_423 is offline  
Quote Quick Reply Share with Facebook
post #19 of 32 Old 10-23-2008 Thread Starter
tdw
Super Fuzzy Moderator
 
tdw's Avatar
 
Join Date: Oct 2006
Location: Sydney Australia
Posts: 17,079
Thanks: 20
Thanked 125 Times in 116 Posts
Rep Power: 10
     
I just had a thought that maybe the designer German Frers popularised it ?

Does anyone know ? This intrigues me.

Andrew B (Malö 39 Classic)

“Life is a trick, and you get one chance to learn it.”
― Terry Pratchett.
tdw is online now  
Quote Quick Reply Share with Facebook
post #20 of 32 Old 10-23-2008
Just another Moderator
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 18,301
Thanks: 126
Thanked 458 Times in 435 Posts
Rep Power: 10
     
Quote:
Originally Posted by knuterikt View Post
Hi
.....I will mount two clutches, one on each side of the cockpit near the aft winches. That way I can use the aft winches for both jib and main sheet.

Leeward winch for the jib, windward winch for the main.

That way I can operate both sheets from behind the wheel..
This sounds interesting.. I'd be concerned if ever both ends were "clutched"... such setups have poor mechanical advantage tackle-wise (relying on the winch for power) and having to dump the mainsheet via clutch could be trouble.. but if only one end is clutched and the working end left winch only, it could work....

The only other concern I'd have would be a kink in the line coming off the winch jamming in the clutch when you're trying to dump the main in a hurry....

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
The Perfect Traveler Sam Boyle Racing Articles 0 05-12-2004 08:00 PM
Refrigeration—Part II Selecting a System Tom Wood Gear and Maintenance Articles 0 05-19-2003 08:00 PM
Upgrading Your Mainsail System Sue & Larry Her Sailnet Articles 0 11-17-2002 07:00 PM
Checking the Wheel Steering System Will Keene Gear and Maintenance Articles 0 07-31-2002 08:00 PM
Mainsheet Systems Dan Dickison Gear and Maintenance Articles 0 10-22-2001 08:00 PM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome