Vanes are considered annotation, but are not considered objects. You can add turning vanes to all fittings or to specific fittings.

Top view of a mitered elbow with turning vanes
.To change the settings, enter s (settings), and specify the vane settings in the following table:

| Setting | Description |
|---|---|
| radius | radius of curvature for the vanes |
| arc angle | determines the size of the vane arc relative to the circular path that defines the vane; for example, 45 degrees is 1/8 of the circular path |
| number of vanes | total number of vanes to add to each fitting; the vanes are spaced equally along the vane path |
| mirror current vanes | for tees; mirror the first set of vanes around a specified line ![]() |
| keep vane path | displays vane path on the fitting; specify no to not show the vane path |
Vanes are added to each fitting of the same size and subtype.
A second set of vanes is added to the tee.
