You must review the previous section of this tutorial first, since this discussion assumes you understand that material. Select the Profile view of the boat. Fair the rows in profile and plan views and fair the columns in section view. A good, even spread of the rows and columns will greatly help the fairing process. Turn on selected hull cuts as needed.
Waterlines are the most difficult to fair, especially near the bow and for the low waterlines.
The reason for this is that their shape depends almost equally on the shape of the rows and columns. Since you cannot shape the waterlines directly, you have to do so using only the row and column points. Since the waterlines are automatically cut and drawn, you cannot fair their shape directly. For hand drafting, you could make the lines look fair, even though the lines did not match up exactly. With this computer program, everything is guaranteed to match up exactly, so this low waterline shape sensitivity is clearly obvious.