Shipping: Weakness in Size

What is as long as four football fields and big enough to carry three quarts of beer for every American over 18? Answer: any one of four Gulf Oil tankers, each of which can haul 326,000 tons of oil. They share the title of world's biggest tanker—but not for long. A tanker with a capacity of 372,000 deadweight tons (d.w.t.) will float out of a Japanese yard in 1971. Thereafter? Shipbuilders can make a tanker as capacious as anybody wants, but the idea hardly enchants them. They have problems enough building anything...

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