Mounting a compass on a steel yacht - 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 > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 10-09-2010
Junior Member
 
Join Date: Oct 2010
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
kiwisailor is on a distinguished road
Mounting a compass on a steel yacht

Hi , I have a Bruce Roberts 38 that was modified by a mad engineer so she has a steel deck ,cabin and pilot house . This is great for strength , no leaks etc but pretty hard to mount a compass on . I've heard you need to mount any compass 600mm from any steel , and that you can approximately swing it and adjust with the magnets inside . Any one had any experiance with this as I really want a non electronic backup (ie not a fluxgate) to my GPS. Ive just purchased a second hand Heath compass so if anyone has experince with those let me know
Cheers
Reply With Quote Share with Facebook
  #2  
Old 10-10-2010
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
IIRC, the compasses designed for installation on steel boats have to have compensators. You can't install just any compass on a steel boat. They usually look like this:



If your compass doesn't have the two compensators, then you're going to have to buy a different one.
__________________
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.
Reply With Quote Share with Facebook
  #3  
Old 10-10-2010
tdw's Avatar
tdw tdw is offline
Super Fuzzy Moderator
 
Join Date: Oct 2006
Location: Sydney Australia
Posts: 14,400
Thanks: 5
Thanked 67 Times in 62 Posts
Rep Power: 10
tdw is a jewel in the rough tdw is a jewel in the rough tdw is a jewel in the rough
Not absolutely correct SD. Raven is steel, does not have a compass as you illustrate but it does have lumps of metal inside that can be moved. Yes , what you show is called a 'steel boat compass' but it seems other models work also.

I'd think a Compass Adjuster would be the person to ask regarding a particular unit.

Which reminds me I need to get hold of one.
__________________
Andrew B

"Do you think God gets stoned? I think so... Look at the platypus." Robin Williams.
Reply With Quote Share with Facebook
  #4  
Old 10-10-2010
Senior Member
 
Join Date: Aug 2009
Posts: 266
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 6
sailor50 is on a distinguished road
Lumps of metal that can be moved? I thought these we balanced!
Reply With Quote Share with Facebook
  #5  
Old 10-10-2010
tdw's Avatar
tdw tdw is offline
Super Fuzzy Moderator
 
Join Date: Oct 2006
Location: Sydney Australia
Posts: 14,400
Thanks: 5
Thanked 67 Times in 62 Posts
Rep Power: 10
tdw is a jewel in the rough tdw is a jewel in the rough tdw is a jewel in the rough
Quote:
Originally Posted by sailor50 View Post
Lumps of metal that can be moved? I thought these we balanced!
were balanced ?

quite possibly... I'll be straight with you.....all this compass adjustment business is a black art to me. All I know is that I have a steel boat that has a compass that is is relatively accurate, has been installed for twenty odd years and doesn't have the ourtigger balls.
__________________
Andrew B

"Do you think God gets stoned? I think so... Look at the platypus." Robin Williams.
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
Mounting a compass on a steel Yacht kiwisailor Introduce Yourself 1 10-11-2010 03:26 PM
Mounting Chartplotter Near Compass? MedSailor General Discussion (sailing related) 8 06-30-2009 06:19 AM
New Compass mounting... Iflyka200s Gear & Maintenance 3 06-25-2008 09:04 PM
compass for autopilot on a steel boat Kater Gear & Maintenance 18 02-29-2008 09:55 PM
mounting a compass... groundhog Gear & Maintenance 12 10-03-2006 11:58 AM


All times are GMT -4. The time now is 04:41 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.