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Frederico,

Right on. I misunderstood your post, assuming you were presented with an off 
the arc error. Sorry about that.

Henry 


--- On Fri, 8/15/08, Federico Rossi  wrote:

> From: Federico Rossi 
> Subject: [NavList 6136] R: [NavList 6134] Re: Ocean Yachtmaster  Exercises
> To: NavList@fer3.com
> Date: Friday, August 15, 2008, 3:38 AM
> Henry,
> the exercise should have then named the index error
> negatively: if it adds
> 2'.0 to the sextant altitude then the index correction
> is +2'.0: the error
> thus must be -2'.0 which is off the arc: if it's on
> take it off, if it's off
> take it on.
> Federico
> 
> -----Messaggio originale-----
> Da: NavList@fer3.com
> [mailto:NavList@fer3.com] Per conto di
> hch
> Inviato: venerd� 15 agosto 2008 5.29
> A: NavList@fer3.com
> Oggetto: [NavList 6134] Re: Ocean Yachtmaster Exercises
> 
> 
> Frederico,
> 
> If I understand your posting, the exercise is correct in
> naming an off the
> arc error positively as an off the arc error is applied
> additively (+), and
> an on the arc error, negatively (-). Just remember ...
> " if it's on, it's
> off (-), if it's off, it's on (+)"
> 
> Happy correcting.
> 
> Henry
> 
> 
> --- On Thu, 8/14/08, Federico Rossi
>  wrote:
> 
> > From: Federico Rossi 
> > Subject: [NavList 6132] Ocean Yachtmaster  Exercises
> > To: NavList@fer3.com
> > Date: Thursday, August 14, 2008, 5:17 PM
> > Hi,
> > 
> > today I was working an ocean passage making exercise
> taken
> > from this book
> > (Ocean Yachtmaster Exercises published by Adlard Coles
> > Nautical - London)
> > and I was quite surprised by what seems a trivial
> error to
> > me, i.e. the
> > exercise states that index error is +2'.0.
> Isnt'it
> > on the arc? So the index
> > correction should be -2'.0. but the solution shows
> a
> > +2'.0 correction, and
> > the same happens for the following exercises. How is
> it
> > possible?
> > 
> > Federico
> > 
> > 
> > 
> 
>       
> 
> 
> 
> 

      

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