Modelling a boats hull

What would be the best way to model a frigates hull to keep the pollygon count down ?

Start with a box, delete three faces,  and copy/drag edges along the hul. Just finish modeled a sail boat like this, really fast.

Kib

hey, this above is help?,
well, i think a good way is with splines and the cross-section modifier, after that use the surface modifier. That's  a low polygon way but if you manage lofts it would be better. They are very powerful,
i hope it may be helpful