NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: "Table top" index error measurement
From: Alexandre Eremenko
Date: 2006 Jul 12, 13:32 -0500
Herbert,
> The concept of both methods is the same.
The method of IC correction does not involve sighting
with your eye at all. You use your eye only to measure
the distance between two spots with compasses and ruler.
In the collimation method, one uses the sight
(through the telescope, to see the laser spot).
The laser beam only replaces the sight over vanes.
That's why I don't see the advantage of this method
in comparison with the "classical" method.
> It is a feature of the receptacle for the scope, not the scope itself. I
> have it on one of my sextants.
What sextant is this?
Alex.
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to NavList@fer3.com
To , send email to NavList-@fer3.com
-~----------~----~----~----~------~----~------~--~---
From: Alexandre Eremenko
Date: 2006 Jul 12, 13:32 -0500
Herbert,
> The concept of both methods is the same.
The method of IC correction does not involve sighting
with your eye at all. You use your eye only to measure
the distance between two spots with compasses and ruler.
In the collimation method, one uses the sight
(through the telescope, to see the laser spot).
The laser beam only replaces the sight over vanes.
That's why I don't see the advantage of this method
in comparison with the "classical" method.
> It is a feature of the receptacle for the scope, not the scope itself. I
> have it on one of my sextants.
What sextant is this?
Alex.
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to NavList@fer3.com
To , send email to NavList-@fer3.com
-~----------~----~----~----~------~----~------~--~---
