Maxsurf Stability Analysis

Yes indeed. You can asymmetrical hulls, multiple hulls, really any configuration at all.

Hi,

Can You help I have got Cb out of the hull, this hydrostatics was performed in upright hydrostatics window in Hydromax, however it is showing correct in modelling module at the same draft.

Its difficult to tell what the problem with your model is from that picture. I recommend you watch the following 2 videos. The first shows modeling techniques and checks on your model to be done in Modeler.
https://youtu.be/f08F1XNtW_s
The second shows how to check your model once it is loaded into Stability.
https://youtu.be/BmeUf_2225o
In summary the checks you should perform are -
In Modeler:
Set frame of reference & zero point
Check trimming, make sure all sections are a single closed contour
Bond surfaces where applicable to prevent gaps
Set Surface Use to "Hull" for wetted surface and to "Internal" for interior surfaces which wont be used for hydrostatics
Check Surface thickness in Surfaces table
Check Outside arrows point outwards for each surface
In Stability:
Walk through hull sections in body plan (Use Single Section display and click on the control box to move form section to section)
Check Curve of Areas in graph window

Its difficult to tell what the problem with your model is from that picture. I recommend you watch the following 2 videos. The first shows modeling techniques and checks on your model to be done in Modeler.
https://youtu.be/f08F1XNtW_s
The second shows how to check your model once it is loaded into Stability.
https://youtu.be/BmeUf_2225o
In summary the checks you should perform are -
In Modeler:
Set frame of reference & zero point
Check trimming, make sure all sections are a single closed contour
Bond surfaces where applicable to prevent gaps
Set Surface Use to "Hull" for wetted surface and to "Internal" for interior surfaces which wont be used for hydrostatics
Check Surface thickness in Surfaces table
Check Outside arrows point outwards for each surface
In Stability:
Walk through hull sections in body plan (Use Single Section display and click on the control box to move form section to section)
Check Curve of Areas in graph window