Plain English Meaning

A short pink line on a glass cockpit display that shows where a value — like your heading, airspeed, or altitude — is heading next if you keep doing what you're doing. It's a six-second look into the future.

Full Definition

A magenta-colored line or bar displayed on a glass cockpit primary flight display that extends from the current value of an instrument (such as airspeed, altitude, or heading) to predict where that value will be in six seconds if the present rate of change continues. On the turn rate indicator, the magenta trend line shows the heading the aircraft will reach in six seconds at the current rate of turn.

Context Anchor

Seen on a primary flight display or horizontal situation display when using the turn rate indicator during .