With the Knock Nevis scheduled for decommissioning, the largest active ship is now the Emma Maersk. The Emma Maersk, a Danish ship, is a container ship with a length of 397 meters (1,302 feet). Its deadweight tonnage is 156,907 tons, and is sailed by a crew of just 13 (though it has a capacity of 30). It is capable of travelling at a speedy 25.5 knots. [links]