Page 16: of Maritime Reporter Magazine (January 1984)

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Justin T. Rogers




A portfolio of the most important offshore and shallow draft vessels constructed during 1983 ... selected because of unusual and superior characteristics of design, purpose or performance.


Hitachi Zosen

The semi-submersible offshore drilling rig Actinia was delivered in 1983 to Actinia Shipping Cor- poration by the Ariake yard of Hi- tachi Zosen. The rig is Hitachi's

SS-4000 type, based on an original design of Friede and Goldman of

New Orleans. The unit is 270 feet long, 200 feet wide, 116 feet high, and has a variable deck load of 3,200 metric tons.

The Actinia is capable of oper- ating in water up to 1,500 feet deep and of drilling to a maximum depth of 25,000 feet. It is designed to withstand waves up to 100 feet high and winds of up to 100 knots.

An 8-point mooring system keeps the rig in position during drilling; four thrusters provide back-up during adverse weather condi- tions. The rig complies fully with the rules and regulations for oper- ation in the U.K. sector of the

North Sea.


Atlantic & Gulf

Boat Building

Built under subcontract from

Air Ride Marine, Inc. of Miami by

Atlantic & Gulf Boat Building,

Inc. of Port Everglades, Fla., the 65-foot crew/supply boat Air Ride

Express entered service in mid- 1983. The new vessel, which is owned by South Florida Offshore

Services, Ltd. and operated out of

Mobile to the offshore oil industry by Gulf Crew Transport of Pensa- cola, Fla., is a surface effect ship (SES) built to the proprietary Air

Ride design that features a shal- low pressurized air chamber under the hull.

Unlike other SES craft, the Air

Ride Express has a rigid intercon- nected structure and requires no flexible seals. Above the waterline it looks similar to a conventional boat. The Air Ride design, which was developed by Air Ride Marine (continued on page 20) 18 Maritime Reporter/Engineering News

Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.