New traveller sizing for angled load? - SailNet Community
 
LinkBack Thread Tools
post #1 of 3 Old 08-21-2011 Thread Starter
Senior Member
 
JordanH's Avatar
 
Join Date: Dec 2008
Location: Canada
Posts: 324
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 7
 
New traveller sizing for angled load?

Hi All,

We had quite a good shake down cruise over the past 6 weeks. We hit some winds which really helped us find some weak spots on the boat; a few days of 25-35 knot winds and on the last day when we were broad and beam reaching in ~28knots of apparent wind for 18 hours straight and the 12' short, mixed cross-seas took the crew and the traveller to task... fortunately the crew survived, but alas the traveller did not. We over extended the system either through wind pressure or, more likely, some harder gybes and as a result the ancient stop pins bound in the aluminium track and stop holes are bent out of shape; Pins and track are done.

My Contessa 26 has a custom built, raised traveller that is near the stern, aft of the boom by a few feet, creating a ~45-60 degree vertical mainsheet angle. (I still must go properly measure the angle and distance) This angle and placement is unlikely to be changed so I'm hoping to improve the system that will work on the existing structure.

So... I'm on the hunt for an improved traveller system and I'm stuck on two points; How do you calculate the load for an angled mainsheet and which style/design (make/model) will handle such an angled load.

For those mathematically inclined who may wish to begin with a load calculating formula I found in the Harken catalogue, P=28, E=10, V=up to 35 knots, X.... Angled load changes this I suspect.

Keep in mind this is a 1983 Contessa 26 on the Great Lakes; We rarely see more than 20-25 knots but I've already been out in 30+ with comfort. I want durability, I don't shy away from the weather and I really don't care about weight but I do care about cost.
JordanH is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 3 Old 08-21-2011
Senior Member
 
tommays's Avatar
 
Join Date: Sep 2008
Posts: 4,296
Thanks: 1
Thanked 30 Times in 30 Posts
Rep Power: 7
 
Garhauer Marine Hardware -3019126

Tell them what want it will be nice at a fair price

1970 Cal 29 Sea Fever

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

1981 J24 Tangent 2930
Tommays
Northport NY


If a dirty bottom slows you down what do you think it does to your boat
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
tommays is offline  
Quote Quick Reply Share with Facebook
post #3 of 3 Old 08-22-2011
Senior Member
 
mitiempo's Avatar
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,503
Thanks: 0
Thanked 96 Times in 87 Posts
Rep Power: 8
   
Rather than expose a traveler to a load angle it is not designed for why not change the mount angle to meet the load. A roller bearing traveler with the load at that angle will put the entire load on the bearings on one side.

Brian
Living aboard in Victoria Harbour
mitiempo 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
Angled Shims for deck hardware? gallilaw Gear & Maintenance 1 04-19-2011 08:54 PM
traveller pcleary Gear & Maintenance 19 11-21-2010 07:00 PM
mainsheet sizing/load huguley3 Gear & Maintenance 29 04-30-2009 08:41 AM
Re: Angled Spreaders Sailormann Sailboat Design and Construction 10 05-05-2008 05:04 PM
When to use the traveller saurav16 Learning to Sail 18 08-28-2007 05:03 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