Outboard Profiles of Maritime Commission  Vessels

The Laker Designs

All Drawings by Karsten-Kunibert Krueger-Kopiske 2007 

Design: L6-S-B1	Great Lakes Engineering Works, Ashtabula, Ohio
Gr.Lake Bulk Carrier	MC-582 to 584 and 587 to 588 (4 built) / Frank Armstrong, Clarence B.Randall, J.H.Hillman jr., Steelton
	Great Lakes Engineering Works, River Rouge, Ohio
	MC-579 to 581 and 584 to 586 (6 built) / Richard J.Reiss, Cadillac, George A.Sloan, Frank Purnell, Robert C.Stanley, Lehigh
Concerned about the nation's steel supply and in particular the continued flow of iron ore from Lake Superior to the foundries, the Commission starts negotations with Great Lakes based yards to build a series of 16 Lakers. In the third wave of expansion, the Maritime Commission ordered ten Great Lakes Bulk Carriers of the L6-S-B1 design. The difference to the A1 design was the use of 3-cylinder triple expansion engines, instead of the Lentz 4-zylinder compound engines used for the A1 type. The vessel was a coal burner with the typical look of an Laker. All vessels were delivered between May and November 1943. Drawing shows the CADILLAC in her post WWII configuration.