The 600-footers were a class of lake freighters all built to the design of the J. Pierpont Morgan. The J. Pierpont Morgan was launched in April, 1906, and was, at the time, the longest vessel on the Great Lakes.
Her sister ships were not all identical. Minor modifications were made. Mark L. Thompson, author of Queen of the Lakes, wrote that between 56 and 76 vessels were built to this design.
The 600-footers could use harbours that larger seawaymax vessels can't use. Until 1961 no vessel longer than 600 feet was able to access Cleveland's harbour.
The vessels' draught was . Their beam was . They were powered by triple expansion steam engines, providing , and could carry 11,000 tons of cargo. They cost $440,000 to construct, in 1906 dollars.
+ selected 600-footers image initialname launched retired notes J. Pierpont Morgan 1906-04-18 1979 Was Queen of the Lakes, when launched. Henry H. Rogers 1906-06-16 Was approximately one foot longer than the J. Pierpont Morgan, making her, briefly, Queen of the Lakes. Norman R. Beam 1906-08-18 1990 ended her life as a permanently moored barge. Peter A.B. Widener 1906-10-20 Edward Y. Townsend 1906 1968 Daniel J. Morrell 1906 1966 Broke up in a storm on Lake Huron on 29 November 1966, 28 out of 29 crew lost. Henry Phipps 1907 1976 Col. James M. Schoonmaker 1911-07-01 modified to be , Queen of the Lakes. D.G. Kerr 1916 D.M. Clemson 1917 Eugene W. Pargny 1917-01-20 1984 Homer D. Williams 1917 August Zeising 1917 William H Warner 1923
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