What two pieces of information does the autopilot turn coordinator provide about a turn?

• A. Pitch and yaw
• B. Airspeed and altitude
• C. Heading and bank
• D. Bank angle and rate of turn

Answer: (D)

The key idea is that the autopilot turn coordinator shows two aspects of a turn: how fast you’re turning and how much you’re banked. The gyro is mounted at a tilt, so it senses both yaw (turn rate) and roll (bank). The miniature airplane tilts to reflect the bank angle, while the needle deflects to indicate the rate of turn. This combination gives you immediate feedback on how steep your bank is and how quickly your heading is changing, which is exactly what you need to hold or adjust a coordinated turn. It doesn’t provide pitch, airspeed, altitude, or heading, so those aren’t represented on this instrument.