`1952 T2 tanker fracture off Cape Cod`
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Not developed; T2 tankers are mentioned only to clarify that the 4,694-vessel figure is not all Liberty ships.
If you look at the data: 4,694 welded steel merchant vessels were built by the Maritime Commission. These were not all Liberty ships, some were T1 and T2 tankers. 970 suffered casualties involving fractures. By casualty I mean a metal casualty, not a person casualty — though some of them probably suffered the other type too. 24 sustained a complete fracture of the strength deck, one vessel sustained a complete fracture at the bottom, eight vessels were lost, four broken in two, and four were abandoned after fracture occurred. 26 lives were lost in these structural failures.