Elias didn't wait. He grabbed the emergency coolant spray from the bridge locker, but he knew it was a temporary fix. "Manual steering!" he shouted. "Get the paper charts out! The Navi-Sailor is going dark."

The Navi Sailor 4000 is a robust machine, but it hates heat. A "hot" ECDIS is a liability. If your unit feels warm to the touch, it is already operating in the red zone.

Do you prefer the familiarity of the Navi-Sailor 4000, or are you embracing the upgrades in the 5100? Let’s discuss in the comments! 👇

It is worth noting that the Navi Sailor 4000 has a feature called This is not a thermal issue, but a positive feature.