Thank you a lot for the information.
Now it's clear for me
By the way, my boat (Stortriss Mk1) is lighter (displacement 425 kg). It's interesting, but hulls of both types looks the same and keels weights are also equal (or not?).
Thank you again.
And here is some photos of Xena
http://www.xena.sienek.com/gallery_en.htm
Regards
Daniel
