Just started working with my first order ever of shiny, new OceanGrafix charts
. Change is bad. New is never good until and unless I like it. Changing the color of my shirt will screw me up for three weeks.
So I'm doing my updates, and find that OceanGrafix uses decimal minutes. That annoyed me. Then I found that it subdivides into sixths
of tenths of minutes. That really annoyed me until I realized that a sixth of a tenth of a minute is a second.
Then I went back to using my beloved engineer's ruler trick, which is the way God would have wanted it if She were concerned with navigation
On a side note, I've been assuming that the Coast Guard publishes the Local Notice to Mariners in degrees, minutes and seconds. Although they carry the seconds out to two decimals, and I'm not sure there's a good reason to do that... and that makes me think I might be missing something.
This does raise another point: I have four charts
. Four. Not four dozen, not four hundred, four.
It takes me a long time to read through the Local Notice to Mariners each week-- how on earth
do real navigators, with dozens or hundreds of charts to maintain, find time to do all this?