Triple-E vessels have no aft thrusters



The first of the 20 giant Triple-E ships that Maersk Line has contracted at Daewoo Shipbuilding in Korea, have now left the dry dock where they were built, and are resting by the fitting at the shipyard.
The first ship in the series will be named Maersk Mc-Kinney Moller after the late shipping magnate but this is information that A.P. Moller-Maersk however do not want to confirm.

The first 10 ships in the Triple-E series have just been assigned IMO numbers - equivalent to the number plate on a car. The first ship in the class, Mærsk Mc-Kinney Møller, has the IMO number 9619907.



Maersk Line's new Triple-E container ships have two propellers and two rudders, and therefore they are not equipped with the aft thrusters that may have caused the flooding that three weeks ago struck Emma Maersk.
"As Triple E have two propellers and two rudders, they do not need aft thrusters. Instead one of the propellers is reversed and by means of the two rudders and bow thrusters it is, in practice, possible to sail sideways", says Palle Laursen, operations manager for Maerks Line, to Ingenøren.dk.

There is obviously a risk that a similar error may occur in the vessel’s bow thrusters. But the consequence will be subject to less when the bow thrusterne are closed off compared to other areas of the ship and therefore wouldn’t flood any large areas.

Palle Laursen says that Maersk still aren’t certain as to what went wrong on Emma Maersk.

"We can, based on the film recorded, yet say nothing about what the cause of the leak was. The water had a visibility of about 30 centimeters, but we believe we can rule out that the damage was caused by a foreign body that entered the thruster tunnel”, says Palle Laursen.

Until the cause of the leak is known, Maersk Line has stopped all use of aft thrusters on other ships in the Emma Maersk series.

Maersk Line Triple-E: The largest, most efficient ship in the world




The cast of the propellers take just 10 minutes. Then they have to cool for 10 days. 


Instead of one large six-blade propeller, like the one seen on the left in the photo, research at Maersk Maritime Technology has concluded that the Triple-E’s will be more energy efficient with two four-bladed propellers. 


The first of the 20 giant Triple-E ships that Maersk Line has contracted at Daewoo Shipbuilding in Korea, have now left the dry dock where they were built, and are resting by the fitting at the shipyard.
The first ship in the series will be named Maersk Mc-Kinney Moller after the late shipping magnate but this is information that A.P. Moller-Maersk however do not want to confirm.

The first 10 ships in the Triple-E series have just been assigned IMO numbers - equivalent to the number plate on a car. The first ship in the class, Mærsk Mc-Kinney Møller, has the IMO number 9619907.



Comments