Definition
A direction of flight or travel toward the east, typically used in flight planning, route descriptions, and air traffic control communications to indicate aircraft heading on a generally easterly course.
Plain English
Going in an easterly direction. If a flight is labeled EB, it means the aircraft is heading east.
Context Anchor
Seen in NOTAM contractions, route notes, airport information, and other short aviation text where space is limited.
Why Pilots Care
Helps pilots plan headings, altitudes, and routes correctly while maintaining proper navigation and separation.
Intuition Check
Do not read EB as a location by itself. It describes an eastward direction of movement, routing, or flow.
Example Sentence 1
All eastbound traffic at this altitude was rerouted around the line of thunderstorms.
Example Sentence 2
Eastbound aircraft are assigned even altitudes under IFR.