Tutorial 1: Design simple hull

http://www.cadfamily.com/a/CAD_CAID/Marine/Tutorial-1--Design-simple-hull_1638.html

1. If you have an existing design open, first close it by selecting
File | Close. Now create a new design by selecting File | New Design.
2. Go to Data | Units, and select metres as the units for length,
and tonnes for weight.
3. Go to the Surfaces | Add Surface menu. Select the default
surface.
4. Make sure that you have one of the design windows topmost
and choose File | Save Design As; specify the file name and where
you wish it to be saved.
In the Perspective window, you should have something like this (turn
on the Net – Display | Net | Show Net to show all the control points,
and turn on the Half display – Display | Half, so that you see just one
side):