Easing the Mainsheet - Page 2 - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > Skills and Seamanship > Learning to Sail
 Not a Member? 


Like Tree4Likes
Reply
 
LinkBack Thread Tools
  #11  
Old 08-19-2013
deniseO30's Avatar
Move over Joan Rivers!
 
Join Date: Nov 2006
Location: Bristol pa
Posts: 6,151
Thanks: 52
Thanked 91 Times in 81 Posts
Rep Power: 9
deniseO30 will become famous soon enough deniseO30 will become famous soon enough
Re: Easing the Mainsheet

Oh Thanks Tom those were a few years back now. cockpit needs a scrub again since splash day.
__________________
Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club. New Website!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

My boat is for sale.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #12  
Old 08-19-2013
Alex W's Avatar
always busy with sailing
 
Join Date: Oct 2012
Location: Seattle, WA
Posts: 2,307
Thanks: 2
Thanked 139 Times in 133 Posts
Rep Power: 2
Alex W is on a distinguished road
Re: Easing the Mainsheet

Quote:
Originally Posted by sailordave View Post
UH, NO!
Plus remember, you want twist at the top of the sail when it's LIGHT b/c that's when the difference in AWA is greater from top to bottom due to frictional resistance across the water. When it's blowing hard, this difference is minimal and you want the sail flat as possible top to bottom. Another reason to use the traveler.
I was talking about using the twist to dump wind from the top of the sail while keeping the bottom section of the sail properly trimmed. I've found this to be useful when the boat is heeling more than I want, but I'm not in a good position to reef.

The one thing in your post that made me think is having the draft move back as the boom lifts. I'm going to have to play with that next time I'm out (tomorrow) to see the effect.

I agree with you on using the traveler to adjust the angle of the sail with respect to the wind, and wrote that in my initial post.
__________________
boats that I sail on regularly: Pearson 28-2, Rondar 505, Yankee 30, Blanchard Junior
Seattle, WA
Reply With Quote Share with Facebook
  #13  
Old 08-20-2013
Senior Member
 
Join Date: May 2006
Posts: 825
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 9
chris_gee is on a distinguished road
Re: Easing the Mainsheet

I agree with those who say ease the traveller with gusts, although I understand that there is a temptation to just use the main sheet. To some extent what one learns depends on the type of boat one learned on - some don't have travellers, or the mainsheet seems easier.
True easing the mainsheet gives greater curvature in the leech,specifically letting the wind out of the top of the sail, however as I understand it, (although it seemed counter intuitive) it also gives greater fullness to the sail and the wind is actually flowing not horizontally but diagonally up the sail, so it could increase the force. On the other hand letting the main go completely decreases it. I guess it is trim versus OMG.
Releasing the main from the cleat - the angle is easily adjustable. You do have to pull the sheet first but it should be quick to free or latch.
Reply With Quote Share with Facebook
  #14  
Old 08-20-2013
SchockT's Avatar
Senior Member
 
Join Date: May 2012
Location: North Vancouver, BC
Posts: 1,425
Thanks: 1
Thanked 27 Times in 25 Posts
Rep Power: 3
SchockT is on a distinguished road
Re: Easing the Mainsheet

Quote:
Originally Posted by FirstCandC View Post
Our traveler is mounted forward in the cockpit. The mainsheet comes down to a cleat, which is hard to pop open from behind the wheel. I am going to fabricate a Y-shaped tool to help with this.
I am curious what you have in mind when you say a "y-shaped tool"! You shouldn't need to make a tool to release your mainsheet! In fact I would say that is a very bad idea! (I have visions of you poking at your mainsheet cleat with a forked stick! ) Most blocks with cleats attached have adjustable beckets so that you can change the angle of the cleat. It could be as simple as playing with the angle so you can get a bit more downward pull. There is definitely a technique to releasing a sheet from a cam cleat from a distance. You have to give the rope a sharp downward snap that pulls the sheet back and down simultaneously. This will unload the cams enough to release the line. It is only really an issue when you are sheeted on hard sailing upwind. It is a technique you must learn; there will come a time when you have no time for tools!

Quote:
Also, there are lines leading to port and starboard and then back, which moves the pulley on the traveler left and right. There are gybe preventers in the cockpit.

My question is, what combination of these lines do you use when easing the main out? It seems easier to just use the main line that comes down from the boom. I am having a hard time describing this, I hope this comes across as a valid question.
When you are sailing close hauled you set your sail shape using the outhaul, sheet and cunningham/halyard, and then you adjust the angle of attack using the traveler. Close hauled and close reaching the traveler is what you should be using to adjust the position of the mainsail, either for course alteration or depowering. That is the whole point and primary purpose of the traveler. Once your point of sail becomes so broad that the boom needs to go beyond the range of your traveler, you pull on the boom vang to take over the job of leech tension from the mainsheet. Then you can use the sheet to control sail angle.
sailordave likes this.
__________________
1979 Santana 30 Tall Rig
Hull#101
Reply With Quote Share with Facebook
  #15  
Old 08-20-2013
Senior Member
 
Join Date: Mar 2013
Location: NC
Posts: 389
Thanks: 33
Thanked 20 Times in 20 Posts
Rep Power: 2
FirstCandC is on a distinguished road
Re: Easing the Mainsheet

Denise, great pictures of a pretty boat indeed! SchockT, The current angle of the cam cleat will only allow a sharp, almost straight downward release. This is impossible from a distance. I will try adjusting the angle.

Also, thanks again to all. I have heard many conversations about sail shape, which were all over my head. A lot of this info is also over my head. Looking forward to using this thread as reference before the next sail.
abrahamx likes this.
__________________
1977 C&C 27 MKIII
Sea Mist
Reply With Quote Share with Facebook
  #16  
Old 08-20-2013
Senior Member
 
Join Date: Jun 2001
Posts: 564
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 14
sailordave is on a distinguished road
Re: Easing the Mainsheet

Quote:
Originally Posted by SchockT View Post

When you are sailing close hauled you set your sail shape using the outhaul, sheet and cunningham/halyard, and then you adjust the angle of attack using the traveler. Close hauled and close reaching the traveler is what you should be using to adjust the position of the mainsail, either for course alteration or depowering. That is the whole point and primary purpose of the traveler. Once your point of sail becomes so broad that the boom needs to go beyond the range of your traveler, you pull on the boom vang to take over the job of leech tension from the mainsheet. Then you can use the sheet to control sail angle.


EXACTLY! And if you don't have a traveler, or as in my case a very short traveler, keep the vang on and ease the main. The big thing to remember is you have SIX control lines to shape the main. Halyard, cunningham, outhaul, vang, sheet and trav. Too often folks forget the cunny and the trav.

All of these should be used before you reef. Reefing before you've gone to full outhaul and cunny is often a waste of effort and may even be slower.
__________________
CS 36M DIANTHUS
Reply With Quote Share with Facebook
  #17  
Old 08-20-2013
SchockT's Avatar
Senior Member
 
Join Date: May 2012
Location: North Vancouver, BC
Posts: 1,425
Thanks: 1
Thanked 27 Times in 25 Posts
Rep Power: 3
SchockT is on a distinguished road
Re: Easing the Mainsheet

Quote:
Originally Posted by sailordave View Post
EXACTLY! And if you don't have a traveler, or as in my case a very short traveler, keep the vang on and ease the main. The big thing to remember is you have SIX control lines to shape the main. Halyard, cunningham, outhaul, vang, sheet and trav. Too often folks forget the cunny and the trav.

All of these should be used before you reef. Reefing before you've gone to full outhaul and cunny is often a waste of effort and may even be slower.
The traveler does not affect sail shape. That is the whole point! The traveler allows you to adjust the angle of the sail without affecting the shape of the sail. Even a short traveler is better than no traveler. Use it when you can!

First CandC,

Don't worry, it all seems daunting at first, but as your knowledge increases it all makes perfect sense. You should read up on sail shape, because it is the key to understanding all of the controls your boat has.
Ranthra likes this.
__________________
1979 Santana 30 Tall Rig
Hull#101

Last edited by SchockT; 08-20-2013 at 11:08 AM.
Reply With Quote Share with Facebook
  #18  
Old 08-20-2013
Senior Member
 
Join Date: Mar 2013
Location: NC
Posts: 389
Thanks: 33
Thanked 20 Times in 20 Posts
Rep Power: 2
FirstCandC is on a distinguished road
Re: Easing the Mainsheet

__________________
1977 C&C 27 MKIII
Sea Mist
Reply With Quote Share with Facebook
  #19  
Old 08-20-2013
Senior Member
 
Join Date: Mar 2013
Location: NC
Posts: 389
Thanks: 33
Thanked 20 Times in 20 Posts
Rep Power: 2
FirstCandC is on a distinguished road
Re: Easing the Mainsheet

Whew, took me a while to figure out how to get that pic posted! Since we are on the subject, Is it possible to rate just how poorly shaped my sail was on Sunday, just based on the pic? We were on a beam reach with light winds (5-12 mph).
The boom vang was loose, outhaul pretty tight, main halyard winched up pretty tight (and then backed off a few inches). The mainsheet was tight, and set in the middle of the traveler.

Also, what is the rope that runs laterally towards the gooseneck from the leech of the sail?

WOW MY SAIL NEEDS CLEANING!
__________________
1977 C&C 27 MKIII
Sea Mist

Last edited by FirstCandC; 08-20-2013 at 01:57 PM.
Reply With Quote Share with Facebook
  #20  
Old 08-20-2013
Senior Member
 
Join Date: Jun 2005
Location: New Orleans
Posts: 1,876
Thanks: 7
Thanked 24 Times in 22 Posts
Rep Power: 10
nolatom will become famous soon enough
Re: Easing the Mainsheet

Cleaning doesn't matter.

It doesn't look that bad, the deepest draft is just forward of the middle so that's pretty good. Hard to tell if you are over-trimmed for a beam reach since I can't see the hull, nor any shroud or luff or leech telltales for reference. And twist is hard to tell unless you're looking more up from underneath, but twist isn't particularly related to whether your sail is okay or worn out.

And I'm not a sailmaker. But speaking as an English major (ahem ahem), is your topping lift a bit tight? the leech looks a little scalloped is why I ask. But within the limits of photography, seems to be on okay and not blown-out serviceable sail from Robbie and Janet Doyle, both of whom used to crush me and many others too in the 110 class back in the day in M'head... ;-)


Oh, and that lateral line is goofus. The two cringles in the leech and the luff are for your first and second reefing lines, there should be hardware (padeye and turning block one each) at boom end and some cleats to serve both lines. So the line you see should start at boom end, up through first cringle, back thru a turning block at boom end, then forward to a cleat of some kind, giving you a 2:1 advantage, which you'll need, trust me, since it has to tension both the luff and the foot. And the luff cringle should have either a similar line along the mast, or a gooseneck-area hook, to bring that cringle down to the tack. And then, voila, you're reefed!!

Then, you could use those three reefing lines to tie up the extra cloth, or just ignore it as many of us do for just an afternoon sail.

You should have at least this lower "jiffy-reef" line rigged, very useful when the wind picks up. And do the second one while you're at it?? you never know how much it's going to pick up ;-)

Last edited by nolatom; 08-20-2013 at 02:53 PM.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mainsheet size? MedSailor Gear & Maintenance 28 03-30-2013 12:53 AM
A better way to run the mainsheet.... MedSailor General Discussion (sailing related) 5 02-25-2012 03:44 PM
mainsheet Packrat Gear & Maintenance 5 08-08-2008 08:00 AM
Mainsheet car Buck General Discussion (sailing related) 1 02-21-2006 01:44 AM


All times are GMT -4. The time now is 08:44 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.