- GPS/GLONASS uncorrected
- Differential corrections via SBAS
- Differential corrections via UHF
- Differential corrections via 3G / 4G
It turns out that supertankers and cruise ships have valets. They're called maritime pilots, and they're among the most elite ship handlers in the world. So where does one go to learn how to park the largest ships in the world? To the Maritime Pilots Institute in Covington, La. There, they use mini-versions of the behemoth boats to teach the basics. All aboard!