It's very rare, even today, for a freighter to have more than one shaft. It's just not necessary.
The Danish East Asiatic Line build a series of containerships back in the mid-seventies with three engines. They were some of the first fast containerships.
The yanks will probably know one of them, M/S Selandia, as USNS Gilliland (T-AKR 298)
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That which does not kill me has made a grave tactical error
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