The C1-B Cargo Vessels Maritime Commission Hull plans (SAFR 21360, HDC1301) consist of two diazo diagrams for C1-B cargo vessels,
Maritime Commission Hull numbers 75, 76, 77, 78 and 156, 157, 158 and 159. The plans were drawn for (and approved by) the
U.S. Maritime Commission by staff at the Shipbuilding Division of the Consolidated Steel Corporation, Ltd. in Los Angeles,
California. George G. Sharp of 30 Church St., NYC is listed as the Naval Architect; and one of the plans was drawn by 'Wallach."
According to Consolidated Steel World War II shipbuilding record, Hull 156 was the AGWIMONTE; Hull 157 was the AGWIPRINCE;
Hull 158 was the ALCOA PENNANT; and Hull 159 was the ALCOA POLARIS. The Capacity Plan (Plan No. C1-B-S29-1-1) shows the profile
of the freighter and the decks. It notes the storage capacity of various holds, spaces and tanks. It includes tables, principal
characteristics and notes. The second diagram (Plan No. C1-B-S29-1-3), "Displacement & Other Curves," includes a graph,
principal characteristics and general notes. The collection is open for use.
According to the website "American Merchant Marine at War" (www.usmm.org), United States Maritime Commission (USMC) C1-type
ships were used in World War II and in the Korean and Vietnam wars. The USMC built 173 C1 ships between 1940 and 1945. They
were meant to be used on routes that did not require fast ships. C1-B ships had either steam geared turbine or diesel motors.