Catamaran Stability

[sholt85]

Does anyone have a copy of ISO 12217-2 on stability for multihulls that they could give out

[terhohalme]

You can find this useful.

http://www.boatdesign.net/forums/dow...?do=file&id=43

[Prevaricat]

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

[Prevaricat]

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

[sholt85]

Thanks for the spreadsheet link, i already have that. Does anyone have ISO 12215-7 Determination of Multihull Scantlings available on PDF.

[Prevaricat]

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

[Dusan]

Does anybody know where I can find some more detail information about the power catamaran stability and resistance?

[Guillermo]

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.