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  #1  
Old 03-22-2009, 07:55 AM
sholt85 sholt85 is offline
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Catamaran Stability

Does anyone have a copy of ISO 12217-2 on stability for multihulls that they could give out
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  #2  
Old 03-23-2009, 12:17 PM
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terhohalme terhohalme is offline
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You can find this useful.

http://www.boatdesign.net/forums/dow...?do=file&id=43
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  #3  
Old 03-23-2009, 09:46 PM
Prevaricat Prevaricat is offline
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Thank you

Excellent work and very useful thank you..

A question though - I have unlocked the sheet to look at the formulae and wonder how you arrived at those for materials cost and build time, also am I right in thinking those would be for composite sandwich construction?

I am going to try and compile a database of similar designs which can be linked from another sheet within the workbook - perhaps this could be a collaboration from the group too - although I will kick it off, time permitting...

I also have the thought to try - although I am not sure it is 'doable' - to add scantlings to the 'parameter' sheet for various regulating bodies.

Once again thank you for sharing this

Kind regards Andy
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Old 03-23-2009, 09:52 PM
Prevaricat Prevaricat is offline
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Hmmmm

I have just realized that my reply above should be in a different thread - should I move it or leave it here - can I even do that?

Andy
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  #5  
Old 03-24-2009, 03:41 AM
sholt85 sholt85 is offline
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Thanks for the spreadsheet link, i already have that. Does anyone have ISO 12215-7 Determination of Multihull Scantlings available on PDF.
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  #6  
Old 03-25-2009, 06:21 AM
Prevaricat Prevaricat is offline
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Sholt 85

Look at this thread: Bureau Veritas rules download, and the comments re ISO compliance.

The link still works, as of yesterday, and covers scantlings for multihulls.

Andy
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  #7  
Old 04-03-2009, 11:34 AM
Dusan Dusan is offline
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Does anybody know where I can find some more detail information about the power catamaran stability and resistance?
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  #8  
Old 04-06-2009, 01:48 AM
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Guillermo Guillermo is offline
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Something interesting here:
http://www.john-shuttleworth.com/Articles/NESTalk.html
and in the "Archival" material at the bottom of this page:
http://www.john-shuttleworth.com/Articles.html

About the ISO rules, you can buy them at a good price here:
http://www.evs.ee/Entity/tabid/58/la...S/Default.aspx

For resistance predictions you can use Michlet, although unluckily version 8.09 has been removed and 9.01 is still not there.
http://www.cyberiad.net/michlet.htm
Perhaps some other member of these forums know how to get the latest version.

Cheers.
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