Does anyone know what this is?? - 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? 


Like Tree3Likes
  • 1 Post By justified
  • 2 Post By svHyLyte
Reply
 
LinkBack Thread Tools
  #1  
Old 08-17-2013
Senior Member
 
Join Date: Feb 2013
Location: Port Dover, Ontario
Posts: 106
Thanks: 1
Thanked 6 Times in 6 Posts
Rep Power: 2
aelkin is on a distinguished road
Does anyone know what this is??

Hi gang!
Found this item (among much more junk) while cleaning out an abandoned C&C Corvette 31 last year.
Found it again today, while cleaning out the closet that houses most of that junk.

I have no idea what it is. Appears to be made from aluminum, with compass headings pressed/etched into it. Also, a couple of flip up plastic sight lines.

Any thoughts?
Attached Thumbnails
Does anyone know what this is??-compass-card-1.jpg   Does anyone know what this is??-compass-card-2.jpg   Does anyone know what this is??-compass-card-3.jpg  
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 08-17-2013
thof's Avatar
Junior Member
 
Join Date: May 2011
Location: Wisconsin
Posts: 6
Thanks: 2
Thanked 0 Times in 0 Posts
Rep Power: 0
thof is on a distinguished road
Re: Does anyone know what this is??

If I am not mistaken it is a base for a bearing compass. The sight-lines should line up with each other and an object at distance to determine bearing from/to said object or range.
I think.
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 08-17-2013
Senior Member
 
Join Date: Jun 2007
Location: Old Saybrook
Posts: 303
Thanks: 1
Thanked 3 Times in 3 Posts
Rep Power: 8
justified is on a distinguished road
Re: Does anyone know what this is??

Not familiar with that style or how it might have been mounted, but it certainly appears to be a bearing compass.

Peter
thof likes this.
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 08-17-2013
svHyLyte's Avatar
Old as Dirt!
 
Join Date: Nov 2008
Location: Tampa Bay Area
Posts: 2,835
Thanks: 15
Thanked 116 Times in 110 Posts
Rep Power: 7
svHyLyte is on a distinguished road
Re: Does anyone know what this is??

Quote:
Originally Posted by aelkin View Post
Hi gang!
Found this item (among much more junk) while cleaning out an abandoned C&C Corvette 31 last year.
Found it again today, while cleaning out the closet that houses most of that junk.

I have no idea what it is. Appears to be made from aluminum, with compass headings pressed/etched into it. Also, a couple of flip up plastic sight lines.

Any thoughts?
It is a Pylorus, used for taking relative bearings and for adjusting one's compass from the sun. You have the bearing plate. Somewhere aboard you may find an armature with a vertical pin that the bearing plate sits on. The bearing plate is aligned with the shadow cast by the pin to the known azimuth of the sun at the time the sight is taken. Relative compass bearings can then be taken with the sight ring/viewing reticles.
rikhall and thof like this.
__________________
"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."
Reply With Quote Quick reply to this message Share with Facebook
The Following User Says Thank You to svHyLyte For This Useful Post:
thof (08-17-2013)
  #5  
Old 08-17-2013
Senior Member
 
Join Date: Feb 2013
Location: Port Dover, Ontario
Posts: 106
Thanks: 1
Thanked 6 Times in 6 Posts
Rep Power: 2
aelkin is on a distinguished road
Re: Does anyone know what this is??

Thanks for the quick replies! I knew someone would know.

svHyLyte, I think you've got the right of it, but maybe under the wrong name? Pylorus is a valve at the junction between the stomach and intestine, I think. My daughter had to have Pyloric valve surgery when she was 2 months old, so I know this....

The boat has since been pretty much cleared off, but there are still lots of rubbermaid bins full of unknown items...so I'll keep an eye out for an armature of some kind.

Any further information is still encouraged! Including the actual name of this item?

Cheers!
Andy
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 08-17-2013
Senior Member
 
Join Date: Oct 2011
Posts: 1,381
Thanks: 6
Thanked 24 Times in 24 Posts
Rep Power: 4
Seaduction is on a distinguished road
Re: Does anyone know what this is??

Pelorus.
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 08-17-2013
svHyLyte's Avatar
Old as Dirt!
 
Join Date: Nov 2008
Location: Tampa Bay Area
Posts: 2,835
Thanks: 15
Thanked 116 Times in 110 Posts
Rep Power: 7
svHyLyte is on a distinguished road
Re: Does anyone know what this is??

Quote:
Originally Posted by aelkin View Post
Thanks for the quick replies! I knew someone would know.

svHyLyte, I think you've got the right of it, but maybe under the wrong name? Pylorus is a valve at the junction between the stomach and intestine, I think. My daughter had to have Pyloric valve surgery when she was 2 months old, so I know this....

Cheers!
Andy
Andy--The dam_ed "spell checker" on this machine thinks it knows more about sailing than do I. It is a Pelorus as in:

__________________
"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."

Last edited by svHyLyte; 08-17-2013 at 12:28 PM.
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 08-18-2013
manatee's Avatar
Senior Member
 
Join Date: Feb 2013
Location: S.E. Florida
Posts: 957
Thanks: 18
Thanked 74 Times in 63 Posts
Rep Power: 2
manatee is on a distinguished road
Re: Does anyone know what this is??

Speaking of 'spell-checker': WARNING: Some seriously salty language here :WARNING:
The 25 Funniest Autocorrects Of DYAC?s First Year
__________________
===========================
*
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
*
===========================

"The skipper should be the calmest person on board.
It is good for the morale of those around you. However, if everyone around you is frightened then be aware of the possibility that they know something you donít."

~~Dylan Winter,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message 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:

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

 
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



All times are GMT -4. The time now is 06:22 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.