displays and buries cables up to 3,000 meters deep

We don’t see them, but Most of the world’s internet traffic circulates through them. The Submarine cables They are very necessary and They have not been few times that have been in the center of conflicts between countries. Some measure thousands of kilometers and connect continents, such as This that will connect Santander with the United Statesbut how do cables of such size unfold? The answer has a name: the Lisa Monna.

The ship. The Lisa Monna is a Cable-Laying Vessel, that we could translate by “cable vessel.” Its manufacture began in Romania in 2022 Under commission from the Prysmian company And it cost 250 million euros, although it has not been until this year that its operations have begun. The Mission of the Lisa Monna is to hold wiring in the sea and can reach up to 3,000 meters deep.

In figures. The Lisa Monna is 171 meters in length and 34 meters of manga. Currently it is, Together with the Leonardo da Vinci of the same fleetthe world’s largest cable ship. In China, one that reaches 215 meters is being assembled, but for the moment it is not operational (It is expected to start navigating in 2026). It is able to load two cable coils, one of 7,000 and another of 10,000 tons. It has capacity for 120 people, it can navigate for 90 days in a row and reaches a maximum speed of 16 knots.

Laying and buried. At first, Submarine cables did not burywhich caused them to suffer more often. Currently the cables are buried in a standard way and it is just what the Lisa Monna does through a simultaneous method of lying and buried.

The ship drags a plow that creates a trench in the seabed between 2 and 3 meters deep depending on the type of soil. Here the cable and the earth are deposited refluxes by itself, leaving the protected cable. This system has been baptized as Hydroplowbut it is not the only one that the ship has. It also has several excavating robots that come into action if they find a harder seabed.

Centimetric precision. The Lisa Monna is a DP3 ship, that is, it has The most advanced dynamic positioning system which ensures that no failure, whether mechanical, electric or software will make you lose your position: this is crucial in the laying of submarine cables since it requires centimeter accuracy for large distances. To ensure the position has an eight -point mooring system.

The fleet. The Lisa Monna is part of a two -ship fleet owned by Prysmian, a multinational company based in Milan. Monna Lisa’s brother was baptized as Leonardo Davinci And they have one more under construction than will be ready in 2027. In April of this year, The Lisa Monna was charged for the first time and It is currently deploying cable on the east coast of the United States.

Images | Prysmian

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