Outboard Profiles of Maritime Administration  Vessels

The C6-Designs

All Drawings by Karsten-Kunibert Krueger-Kopiske 2007

In 1972 / 1973 APL converted the former Breakbulk Cargo Vessels Marad Design C4-S-1qa into partial Containerships. Work was performed by the Todd Shipyards Corp.at Seattle, Washington and the vessels were delivered between September 1972 and February 1973. Vessels were lenghtened by 105 ft.to meet the the requiremenents for the growing demand in containerized trade. Between April 1979 and October 1982 the vessels were Trade-In to Marad as part payment for the new construction of vessels under the terms and provisions of the Merchant Marine Act of 1936. Laid-up at the Suisun Bay Reserve Fleet between May 1980 and July 1982. In 1986 / 87 all three vessels were transferred to the U.S.Navy and converted into Auxiliary Crane Ships for use by the Military Sealift Command (for further informations see Marad Design C6-S-MA1qd). Drawing shows PRESIDENT HARRISON after conversion.

The growing container trade forced United States Lines in the early 70's to modernize and convert former Breakbulk Cargo Vessels into Containerships. USL choosed her eight C4-S-1a cargo vessels for this. Contracts were signed with the above described Shipyards and the vessels were redelivered for service between September 1970 and February 1971. The vessels were lenghtened by nearly 100 ft. The result was that Gross Tons raised by 5,000 tons, but remarkable was that the service speed was only reduced from 20.25 to 19.75 knots. The total container capacity was 1,027 TEU's. All vessels remained in service by USL up to 1983 when they were laid-up at New York City. In December 1985 all eight vessels were sold for scrapping (ARCHER, ACE, ARGOSY, ALLIANCE, ACCORDand LEGEND were scrapped at Kaoshiung, RoC and LEGACY and LEADER were scrapped at Castellon de la Plana, Spain). Drawing shows the AMERICAN ACE after conversion.

The conceptual design for the AUSTRAL ENVOY was developed by George G. Sharp Co. in the spring of 1967 and, after acceptance by Farrell Lines and designation by MarAd as a C6-S-85a, a contract design was completed and distributed for shipyard bidding in early 1968, which culminated in an October award to Ingalls, based on a scheduled delivery of December 1970. This Farrell ship is well equipped to compete for trade between U.S. Atlantic and Gulf ports and Australian and New Zealand ports. With a speed of 23 knots and a cruising radius of over 16,000 miles, the AUSTRAL ENVOY can provide the fast dependable cargo service required on the trade route. The main propulsion turbines and gears develop 28,500 shp at 106.5 propeller rpm and gives her a service speed of 22.75 knots. The total container capacity is 1,240 TEU's.