The blockage of the Suez Canal by a mega-ship named Ever Given for six days ended on March 29 when rescuers used dredging and tugboats to re-launch the ship. The competence of a single ship to obstruct one of the world’s busiest shipping gates created traffic congestion on hundreds of ships, prompting a debate about the ever-growing size of mega-ships, taken as evidence of the Ever Given crash it just becomes too big.

The 400-meter-long Ever Given is indeed one of the largest per cent of the world fleet. The high-profile crash will result in a new wave of measures to make mega-ships more reliable, but will also conduct the maritime industry to consider whether such gigantic ships do more damage than well.

Container vessels have been growing in size for decades to transport more containers each time. In light of Allianz’s data, the number of 20-foot containers that ships can carry has increased by 1,500 per cent in the last 50 years. One of the most important length upgrades was when Maersk launched the e-series in 2006, which could carry near here 15,000 containers and doubled the capacity of its former largest container ships.

133 ships with a carrying capacity of 18,000 to 24,000 containers have been launched in the 15 years. These are classified as extreme-large container ships, the largest boats in the world. In this fact, the Ever Given is such a ship. Megaships are especially charming to international shipping companies because they present economies of scale: the larger the ship, the more productive it is at transferring goods.

Whereas Ever Given can transport 20,000 containers, supposed very large container ships can only transport a capacity of 9,000 containers. Handling only one ship in place of two to transport the same cargo saves fuel, considerably decreases shipping cost per container and reduces the ship’s environmental footmark.

It has already proved difficult to operate mega-ships in closed waterways. Stacking them high with containers is useless: it can cause ships to catch the wind and make it even more difficult to control, which may have played a role in grounding Ever Given.

Substructure also combats to overcome these larger ships. Concerning the 2015 analysis, ports, straits and canals need to be expanded to make room for the new class of mega-ships. The expense of such projects is enormous: The expansion of the Panama Canal to accommodate larger ships in 2016 exceeded $ 5 billion. According to these substructure issues, there could be an economic discussion opposite growing the number or size of ultra big ships in our seas.

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