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  The best place to get information on "aim-off" is at my website at:

https://sites.google.com/site/fredienoonan/

look at "topics" and "discussions."

In early days of marine navigation when it was not easy to determine
longitude it was common to aim off to the east or west of the
destination, sail until reaching the latitude of the destination, and
then sail either east or west to the destination. This was called
"latitude sailing."

gl


On 9/10/2010 6:20 AM, mjans wrote:
>
> I'm a PhD student and am working on a paper quantifying when and by
> how much to aim off. Can anyone point me to any references on the
> subject? For instance from [NavList 10886]:
> "Noonan could be expected to have known this technique since he knew
> Weems and Chichester had popularized in 1931."
>
> How did they do that?
>
> Has anyone heard of off-aiming in maritime navigation, perhaps under a
> different name?
>
> Thank you very much.
> Tom Temple,
> Ph.D Candidate,
> Laboratory for Information and Decision Systems,
> Massachusetts Institute of Technology
>
> At the moment, my results are still preliminary but I would be happy
> to share them with anyone who is interested.
>
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