Around half a year ago.

Tanker escort mission. Autonomous unmanned tanker, board number 103.

Now we use a sextant and a chronometer to calculate the latitude and longitude.

Okay, now remember your classes and try doing it by yourselves.

What's wrong Akatsuki, you didn't do your homework?

S... so what? We have all kinds of convenient equipment like GPS now, who cares about that antique junk?