What is the primary purpose of the attitude indicator in instrument flying?

• A. It shows airspeed and altitude.
• B. It provides engine data.
• C. The aircraft's pitch and bank relative to the horizon.
• D. GPS position.

Answer: (C)

In instrument flying, knowing the aircraft’s orientation without outside references is crucial. The attitude indicator gives a direct, real-time picture of the airplane’s orientation relative to the horizon, showing both pitch (nose up or down) and bank (tilt to the left or right). This visual representation lets you maintain or adjust the flight attitude, hold level flight, climb, descend, and enter or hold a turn by aligning the miniature airplane with the artificial horizon. It’s the primary source for attitude when you can’t rely on the outside world, such as in clouds or darkness.

It doesn’t provide airspeed or altitude—that’s what the airspeed indicator and altimeter are for. It also doesn’t give engine data or GPS position. Those data come from their respective instruments, and you cross-check them with the attitude indicator to ensure you’re on the correct flight path.