# catamaran hydrostatic calculation

Discussion in 'Stability' started by mizkuzi, Jun 9, 2011.

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### mizkuziJunior Member

hello,

anybody has a manual hydrostatic calculation sample for a catamaran yacht in excel format? I need some good reference. I couldnt understand well how to do it since i've only knew some for monohulls... Please help thanks!..

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### fer.ciprianiNew Member

By deduction I think so:

I: Moment inertia of single hull

Then:

I(cat)= 2 x (I x (beam/2)^2)= I x beam^2 / 2

Regards.

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### jehardimanSenior Member

1 person likes this.
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### mizkuziJunior Member

Hello,

Thanks for this reply. May you please be specific of the ff. legends u used in the formula stated?

Ixx = ?
ama = ?
CL = ?

Thanks a lot and advance happy new year!

Best Regards,
Joyce

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### DCockeySenior Member

ama is one hull of a catamaran
ama CL is centerline of an ama
Ixx is moment of inertia about the x axis. Location of the x-axis is noted in paranthesis

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