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Re: Re: Re: Ship design
Nick_H — (archived)

Catamaran designs are quite common in another naval field - floating offshore drilling and production facilities. For these, the prime requirement is stability, and the secondary requirement is mobility.

http://wpcontent.answers.com/wikipedia/commons/7/75/Mobile-offshore-drilling-unit.gif


Very large concepts based on two not-quite supertanker hulls have been genuinely proposed (but largelyu driven by the economics of the time where large numbers of not-quite supertankers were lying idle).

http://www.abc.net.au/reslib/200811/r318656_1416303.jpg


Modern newbuild designs include a floating LNG plant with a deadweight of 600,000 tonnes. (The Nimitz-Class nuclear carriers are a mere 101,000 tonnes!)

These tend to be barge-like designs with a large flat deck area, but ample freeboars. The scale of the constructions can be seen in these images - note the 'small" boat moored alonglide. This is a massive LNG supertanker, dwarfed by the comparison!

http://www.wallermarine.com/images/Baja-Offshore-LNG-No.-5-LOW.jpg

http://www.abc.net.au/reslib/200910/r449305_2183693.jpg


http://www.lngpedia.com/wp-content/uploads/2009/01/floating-lng-sbm-linde-2.jpg
- too large to include here, but worth a look.

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