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#202075 - 31st Jan 2008 5:46am Ships on legs
Pomp Offline

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Registered: 19th Aug 2005
Posts: 5253
Loc: Wirral
Originally Posted By: bbc - Ships on legs
Rising from stormy seas, the giant turbine towers of an offshore wind farm seem almost miraculous to the untrained eye. But how do you put them there?

Most boats do not have legs. But a jack-up barge has six, protruding high into the air when the ship is in transit.

Extending to a length of 48m from the bottom of the ship, and penetrating up to 5m into the sea bed, the "legs" of these ships provide a stable "ground" in a place where there is only roiling water.

As the legs push down, the ship is lifted above the waves. Purpose-built at a Chinese shipyard, the 60m jack-up barge MPIO Resolution is an extraordinary piece of engineering in itself.

With a solid platform achieved, the windmill is fixed into place using a crane from the ship.

These procedures are becoming more common as the drive goes on to increase wind power.

If government targets are to be met, the UK could have as many as 7,000 offshore wind turbines by 2020. In the process, it would increase the amount of energy produced by that means about 60-fold.

http://news.bbc.co.uk/1/hi/magazine/7206780.stm

Thats a lot of wind turbines!

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#202076 - 31st Jan 2008 5:53am Re: Ships on legs [Re: Pomp]
MattLFC Offline
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Registered: 14th Aug 2004
Posts: 22315
Loc: Moreton/Beirut/Mobile
I saw this yesterday, pretty crazy, impressive piece of engineering imho!

smile

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#202102 - 31st Jan 2008 8:24am Re: Ships on legs [Re: MattLFC]
MrPhil Offline
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Registered: 14th Apr 2006
Posts: 2367
Loc: Prenton
Worked on a similar ship around 99-2000 in my apprenticeship, each leg weighes around 30tonnes iirc.

Amazing considering how rough the seas can be. Credit to the designer and makers of this ship.
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