FEBRUARY 6 2003
5.10. Placement. As the layouts indicate, messages are placed flush left or flush right in relation to
the arrow. Arrows pointing left or up will have flush left messages, and arrows pointing to the right
will have flush right messages. The arrow is centered in the space between the message and the edge
of the sign.
5.11. Rules. The letters are always Helvetica medium. The message area accommodates a maximum
of 17 tiles or characters. Spell names out in full whenever possible. If abbreviations are required,
conform to AFDD1-2, Air Force Glossary.
Figure 5.1. Diagrammatic Sign Type D1.