600-footers

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The 600-footers were a class of lake freighters all built to the design of the J. Pierpont Morgan.[1][2] 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 , wrote that between 56 and 76 vessels were built to this design.[2]

The 600-footers could use harbours that larger 730 feet (220 m) seawaymax vessels can't use. Until 1961 no vessel longer than 600 feet was able to access Cleveland's harbour.[2]

The vessels' draught was 19 feet (5.8 m).[3] Their beam was 58 feet (18 m). They were powered by triple expansion steam engines, providing 1,800 shaft horsepower (1,300 kW), and could carry 11,000 tons of cargo. They cost $440,000 to construct, in 1906 dollars.

selected 600-footers
image initial
name		 launched retired notes
J. Pierpont Morgan.png J. Pierpont Morgan 1906-04-18 1979
1906-06-16
  • Was approximately one foot longer than the J. Pierpont Morgan, making her, briefly, Queen of the Lakes.[2]
1906-08-18 1990
  • ended her life as a permanently moored barge.[3]
1906-10-20
Edward Y. Townsend.png Edward Y. Townsend 1906 1968
Daniel J. Morrell showing her Cambria Steamship Company smokestack.jpg Daniel J. Morrell 1906 1966
Henry Phipps 1907 1976
Schoonmaker1911.jpg Col. James M. Schoonmaker 1911-07-01
  • modified to be 617 feet (188 m), Queen of the Lakes.
Freighter D.G. Kerr, circa 1920 - 2011040370 (cropped).jpg D.G. Kerr 1916[4]
1917
1917-01-20 1984
1917
1917
1923

References[]

  1. ^ (1953). The Log, Volume 48. . p. 49. Until the 1920s this class of vessel was considered just about the ultimate in size.
  2. ^ a b c d e Mark L. Thompson (1994). Queen of the Lakes. Wayne State University Press. ISBN 9780814343371.
  3. ^ a b (1991). Steamboats & Sailors of the Great Lakes. Wayne State University Press. p. 48. ISBN 9780814323595.
  4. ^ "RPPC SHIP FREIGHTER SS DG KERR built 1916". Flickr. RPPC SHIP FREIGHTER SS DG KERR built 1916 600 footer SS DG KERR and Pittsburgh Steamship Company SS WILLIAM A. McGONAGLE launched Real Photo Antique Photo Postcard Photographer UNK3
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