Does anyone know what this is?? - SailNet Community
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post #1 of 8 Old 08-17-2013 Thread Starter
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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?
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post #2 of 8 Old 08-17-2013
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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.
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post #3 of 8 Old 08-17-2013
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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.

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post #4 of 8 Old 08-17-2013
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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.
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post #5 of 8 Old 08-17-2013 Thread Starter
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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
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post #6 of 8 Old 08-17-2013
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Re: Does anyone know what this is??

Pelorus.
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post #7 of 8 Old 08-17-2013
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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 11:28 AM.
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post #8 of 8 Old 08-18-2013
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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

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"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,
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