"Maynard G. Krebbs" wrote in message
...

If you are any good at mental arithmetic, then you should be able to form
an
opinion directly from your observation. You will then double check it,
by
plotting it on a chart. However, I will conceed that if you are unable
to
do basic sums in your head, then you might have to use these short cuts.
I would like to stress that we are *all* able to better at mental
arithmetic
than we think.


Regards


Donal

Using one of these pairs of bearings will give you distance off when
the object is abeam. Combine the distance off with a bearing when
it's abeam and you have a FIX, do you not? Better than a running fix.
Isn't it?

Absolutely!

The difficult bit is "the distance off".

If the shoreline is a 200' cliff, and you have Radar, and you are less than
a mile from the shore, then I think that you can probably use the "distance
from shore" measurement with confidence.


Regards


Donal
--




Sorry but I'm new at this coastal navigation stuff.
Mark E. Williams