|
|
Subject: Re: minus index corr better than plus
From: Aubrey O'Callaghan (ocallaghan@XXX.XXX)
Date: Thu Jul 27 2000 - 09:32:23 EDT
Dan,
Why do you talk about getting it serviced ?
This is an adjustment that the Navigator can make to the sextant. The text
books say that one should not worry about a few minutes, to try and correct
this. Correcting out small off/on the arc erros are called "worrying the
sextant" and eventually end up with the adjusting screws becoming "loose".
In any case we calulate out the small differences.
Aubrey.
==============
t 07:04 PM 26-07-00 -0700, you wrote:
>On 25 Jul 2000, at 15:18, Russell Sher wrote:
>
>[Snip OFF/ON Stuff]
> >
> > If the error is on the arc Subtract it, if the error is off the arc ADD it.
> >
>
>I just looked at my FREIBERGER Sextant. It has 5 degree marks below the
>zero. If it was off more than that, I would not use it, but get it
>serviced. What type of Sextant, with out marking below Zero are we talking
>about???
>
>Dan Hogan
>dhhogan@XXX.XXX
>NAV-L Web Page: http://nav.cnchost.com
=================================================================
Aubrey O'Callaghan
Wandrin' Star of Dart
Rival 38
Contact: Venezuela,
Puerto La Cruz
00-58-14 210 4625 (Cellular)
00-58-81 818 667
|