In mast/boom furling - SailNet Community
Reply
 
LinkBack Thread Tools
post #1 of 35 Old 10-18-2010 Thread Starter
Lake Sailor
 
cb32863's Avatar
 
Join Date: Oct 2009
Location: Minneapolis, MN
Posts: 713
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 6
 
Question In mast/boom furling

I am seeing in mast furling systems on larger boats and I am wondering how well they work. Not really ease of use but for sail shape and performance. I believe there are in boom systems as well. Anybody have experience or grand knowledge about these? I am very curious.

Thanks,

CB

Umquam Porro

S/V Papillon 1977 O' Day 25


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
cb32863 is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 35 Old 10-18-2010
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 15 Times in 12 Posts
Rep Power: 14
         
Most will have relatively lousy sail shape when reefed and are relatively low performance, since most will require you to have a hollow leech mainsail since they are unbattened. Some of the newer ones are battened, using vertical battens, but still not as good performance as a fully battened (horizontal) mainsail with a decent roach. There's a reason you only see these things on CRUISING boats...and not things like Open 60s..

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.

Last edited by sailingdog; 10-19-2010 at 02:21 PM.
sailingdog is offline  
Quote Quick Reply Share with Facebook
post #3 of 35 Old 10-18-2010
Senior Member
 
CBinRI's Avatar
 
Join Date: May 2004
Posts: 919
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 12
 
Quote:
Originally Posted by cb32863 View Post
I am seeing in mast furling systems on larger boats and I am wondering how well they work. Not really ease of use but for sail shape and performance. I believe there are in boom systems as well. Anybody have experience or grand knowledge about these? I am very curious.

Thanks,

CB
Can't beat the convenience, as long as it works. The negatives are the sails will not be as efficient because you can't batten them in the same way and they simply won't have as efficient a shape. I have seen some in-mast furling sails with up and down battens but that doesn't make a lot of sense to me. I have certainly never seen any up and down battens on any other sails and I can't imagine that it would hold as good a shape.

The other negative that you hear about sometimes is that they can jam sometimes and once they do it can be a real bear, especially in windy conditions. This problem may be "overblown," though, as I have friends with in-mast furling who have never had this problem and they seem to always roll up their mainsail lickety split.
CBinRI is offline  
Quote Quick Reply Share with Facebook
post #4 of 35 Old 10-18-2010 Thread Starter
Lake Sailor
 
cb32863's Avatar
 
Join Date: Oct 2009
Location: Minneapolis, MN
Posts: 713
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 6
 
Thanks SD and CBinRI! I had heard something similar but I wasn't sure so I figured I would ask.

Umquam Porro

S/V Papillon 1977 O' Day 25


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
cb32863 is offline  
Quote Quick Reply Share with Facebook
post #5 of 35 Old 10-18-2010
美国华人, 帆船 教授及输送
 
Join Date: Sep 2006
Location: MD
Posts: 2,531
Thanks: 24
Thanked 23 Times in 15 Posts
Rep Power: 9
 
I have in mast furling. It is a love/hate relationship. I like it because it is easy to handle singlehanded, especially in the middle of the night. i hate it because it is hard to get the shape I want. But then again, we are talking about may be a 0.5 kn difference. IT is not going to change the grand scheme of things when it comes to cruising.

I wish the price of boom furling will come down, I think it will be a good viable option. Furling is a must for me. I hate to get on the deck sailing solo, although I have done so many time. Even with tethering and jack line, getting back on the boat is still hard.


Fine Print:
I am old school. Integrity is to do the right thing even when no one is watching.
rockDAWG is offline  
Quote Quick Reply Share with Facebook
post #6 of 35 Old 10-18-2010
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 15 Times in 12 Posts
Rep Power: 14
         
Actually, in heavier winds, the in-mast furling's poorer sail shape can lead to a lot more heeling and make the ride a lot less comfortable.

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 #7 of 35 Old 10-18-2010
美国华人, 帆船 教授及输送
 
Join Date: Sep 2006
Location: MD
Posts: 2,531
Thanks: 24
Thanked 23 Times in 15 Posts
Rep Power: 9
 
Quote:
Originally Posted by sailingdog View Post
Actually, in heavier winds, the in-mast furling's poorer sail shape can lead to a lot more heeling and make the ride a lot less comfortable.
Hmmm.... how so, please explain.
As in my case, I tighten up my sail and let go the sheet more.


Fine Print:
I am old school. Integrity is to do the right thing even when no one is watching.
rockDAWG is offline  
Quote Quick Reply Share with Facebook
post #8 of 35 Old 10-18-2010
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 15 Times in 12 Posts
Rep Power: 14
         
You can't flatten a reefed in-mast sail as well as you can a slab reefed sail. The fuller shape leads to more heeling, less control over the boat, etc.

Quote:
Originally Posted by rockDAWG View Post
Hmmm.... how so, please explain.
As in my case, I tighten up my sail and let go the sheet more.

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 #9 of 35 Old 10-18-2010
Senior Member
 
BarryL's Avatar
 
Join Date: Aug 2003
Location: Long Island, NY
Posts: 1,807
Thanks: 4
Thanked 46 Times in 41 Posts
Rep Power: 12
 
Hello,

In mast and in boom furlers make it a lot more convenient to use the mainsail. Easy to deploy, easy to stow, no sail cover to deal with, no need to go forward to raise, lower, cover, etc.

With an in mast sail you won't have the same performance as a standard sail, but this doesn't seem to bother most cruisers.

Personally, I value performance enough so that I would buy a boat with an in mast furler.

I don't see any negatives to in boom units. I'm sure the cost is significant and maybe it makes raising the main more difficult.

Barry

Barry Lenoble
Deep Blue C, 2002 C&C 110
Mt. Sinai, NY

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
BarryL is offline  
Quote Quick Reply Share with Facebook
post #10 of 35 Old 10-18-2010
Warm Weather Sailor
 
Vasco's Avatar
 
Join Date: Sep 2006
Location: Toronto
Posts: 1,007
Thanks: 0
Thanked 9 Times in 8 Posts
Rep Power: 9
 
I love the in-mast furling on my B393. As far as performance goes, I'm cruising and in my cruising grounds it's usually blowing pretty good. When I cruised with a traditional main I did not hoist the main as much. That's what usually happens you end up using the jenny on it's own more but with the furling main and its infinite reefing the main's always out which is a lot better for balance.

Rick I
Toronto in summer, Bahamas in winter.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Vasco 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
In boom furling? aqwert5 General Discussion (sailing related) 16 08-17-2010 12:00 PM
In-Boom Mainsail Furling dave6330 Boat Review and Purchase Forum 2 04-29-2009 07:33 PM
GMT's New Carbon Furling Boom w/no mandrel through the Mast administrator Gear and Maintenance Articles 5 03-22-2009 04:32 AM
Fix for old roller furling BOOM? dennisvetter Gear & Maintenance 5 07-18-2007 10:20 PM
Boom Furling Revolution Tom Wood Cruising Articles 0 07-12-2002 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