To construct the visors, import the

To construct the visors, import the appropriate curves from layers cVisor1 and cVisor2 in the designer's lines. You will need to import both the plan and profile views of the curves. Make sure you import all the curves from both views. Once the curves are in place, use the Crv2Views command to construct 3-D curves from the 2-D curves. These curves will be used to loft portions of the visors and for constructing sections that will be used for lofting other portions of the visors. The result of having built 3-D curves can be seen in the image below. The tangents on the forward corner must be built using the Crv2Views command, because there is curvature to the profiles of these two curves. If there were no curvature, you could simply draw them as straight lines, after building the top and bottom of the corner piece. Only the visor for the first level of superstructure is shown. Both visors will be built in the same manner.