Before revision: Often this part of the display shows not only the current heading, but also the current track (actual path over the ground), rate of turn, <ref G1000 Manual, Turn Rate Indicator page 21] </ref> current heading setting on the autopilot, and other indicators.
After revision: Often this part of the display shows not only the current heading, but also the current track (actual path over the ground), rate of turn, G1000 Manual, Turn Rate Indicator page 21] current heading setting on the autopilot, and other indicators.