Adding the mercator scale bar (Aviation)

The mercator scale bar is a customized scale bar displayed on aeronautical charts using a mercator projection.

Steps:

1. Start ArcMap.
2. On the main menu, click View > Layout View.
3. On the main menu, click Customize > Toolbars > Aviation Layout.
4. Click the Mercator Scale Bar button on the Aviation Layout toolbar.

   By default, the mercator scale bar represents the current focus map scale if it is not zero.

   Note:

   The mercator scale bar is not dynamically linked to the data frame properties; scale changes do not automatically update the mercator scale bar element.