Rethink on container ship sizes?

Economies of scale are one thing when it comes to ever-rising container ship sizes but should that outweigh the expected soaring rise in insurance costs and disruption to JIT deliveries if ship sizes continue ever upwards?

Already, 20,000 teu ship sizes are in the pipeline but container losses at sea show no signs of moderating. The latest disastrous loss is the ONE Apus, which lost 1,816 containers after hitting rough weather on November 30th, 1,600 nautical miles north-west of Hawaii on a voyage from China to Long Beach, California. The ship is a 14,000 teu vessel built only last year and operating under the Japanese flag. It looks like the worst loss in container ship history and comes only one month after another ONE Line-operated ship of 14,000 teu capacity, the ONE Aquila, also suffered collapsed containers in severe weather on a similar voyage. 

There are many reasons that contribute towards such losses at sea, namely poor internal packaging and load distribution and deliberate under declaring of cargo weights to save costs and freight duties, among others. When, for example, the MSC Napoli container ship was beached on the English Devon coast in 2007 MAIB found that one of the contributory causes for the total hull write-off was overloading of 20% of the containers, including one by as much as three tonnes. There is also the ever-present risk from rogue killer waves over 100ft high which can slice through both sides of a ship's hull and sink the largest of ships in  just a few minutes, with the loss of all hands. 

The IMO has toughened weighment rules since then to reduce such nefarious misdeclarations but there are still supply chain gaps and loopholes in weighing containers. If insurance companies don't call a halt on behemoth ships soon they will only have themselves to blame for the inevitable multi-billion pound losses ahead. Nature is a hard act to beat.

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