"Scotty" wrote in message
...

"Joe" wrote in message
oups.com...
I use paper charts all the time, and a compass doing DR's.

me too.

Then block
numbers.


What's that?

I believe that might mean fixes triangulated from differing sources/methods
like DR, Sextant, GPS, Radar etc.... plotted and their location "boxed" to
provide the best fix?A circle, square and triangle are often used to denote
type of fix.

Unless of course it's a reference to boxing a compass?

CM