| Page 10 | Modeling a Sailboat: Backbone |
You should now have the curves highlighted below:

In the front view, select the new curves, and hit Join. Select the joined curve and hit Extrude 'Cap=Yes' type 'c' to select the cap option, 'b' to activate the 'BothSides' option, and finally enter 2.5 as the 'Distance'.
Note: If you don't see a cap option, it means that the original rudder curves you made did not snap to each other's ends to form a enclosed area. Check the curve corners to see if they meet exactly end to end.
That completes the backbone of the boat.