Page 41: of Maritime Reporter Magazine (April 2004)

one pontoon peak tank could easily result in an inclination of more than 10 degrees.

With Autoload's 3-D model you can easily predict the effect that damage will have on stability in any direction; the software calculates real shift of free sur- face in slack tanks according to any change in heel or trim. Real-time sensor data is used for tank contents, drafts, mooring tension, riser tension and wind, while the software accommodates differ- ent sets of criteria for different modes of operation. A separate view frame moni- tors the actual maxVCG curve relative to the current condition (draft/vcg). (See Fig. 3)

Finally, ASC hasn't forgotten to account for the time-honoured programmers dic- tum, "nonsense in, nonsense out (replace the word "nonsense" as you please). What if data that should have been manually entered somehow gets omitted? What happens if a sensor is mis-reading, or if an operator enters incorrect data? This is where the 3-D model of the displacing vessel saves the day: Autoload Rig com- pares the "calculated draft" with the "real draft", and solves to find the "constant" weight that accounts for the difference. If this "constant weight" and its calculated centre of gravity are within a specified limit, then the loading condition is con- sidered correct. If the constant weight falls outside the limits, the operator is warned and must find the reason for the discrepancy. If you need stability soft- ware for an offshore vessel of any kind, then it is worth contacting an ASC dealer for more information.

During the 24 years Autoship Systems

Corporation has been producing world- class CAD/CAM and load management software, it has amassed thousands of customers — including the US Navy, US

Coast Guard, Newport News

Shipbuilding, Teekay Shipping Ltd,

Halliburton Subsea, CS Marine

Technology Corporation, Rolls Royce,

Westwood Shipping Lines, and Wallenius

Wilhelmsen Lines, plus private compa- nies and government agencies in every corner of the world. ASC also recently partnered with CS Marine Technology

Corporation to offer consulting services for owners and vessel designers doing business in China. ASC's latest load man- agement and stability products include

Lloyds and DNV-approved Stowage

Management Systems for ro-ro, contain- er, bulk, tanker, and break bulk vessels (all with Autoload included in the sys- tem). Their latest CAD/CAM offerings include Autoship 8.3 (for release next month) for hull design and surface mod- elling, Autostructure 3.0 for internal structural design. Production Manager 3.0 for nesting and other production sup- port, and of course Autohydro 6.0.

Circle 49 on Reader Service Card

Circle 257 on Reader Service Card

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Circle 251 on Reader Service Card

Shipboard Equipment • Fairleads, roller, multi angle • Anchor chains and fittings • Wire and fibre rope • Chain stoppers • Anchors

Jetty Equipment • Bollards/Mooring Bitts • All class certification available • Navigation equipment (IALA members) _

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