For maintaining proper pitch, what supporting instrument is used in a constant airspeed climb?

In a constant airspeed climb, the primary instrument to maintain proper pitch is the Attitude Indicator. This instrument displays the aircraft's orientation relative to the horizon, providing critical information about whether the aircraft is climbing, descending, or flying level. In this scenario, maintaining a constant airspeed during a climb requires careful pitch control, and the Attitude Indicator is essential for pilots to ensure that the aircraft is climbing at the correct angle relative to the horizon.

While the airspeed indicator is crucial for monitoring the aircraft's speed, it does not directly indicate pitch attitude. The Vertical Speed Indicator (VSI) provides information on the rate of climb or descent, but it does not indicate whether the aircraft is in level flight or properly pitched for a climb. The altimeter indicates altitude but does not give any information about pitch or climb rates.

Utilizing the Attitude Indicator alongside the airspeed indicator allows pilots to make the necessary adjustments to maintain the desired airspeed during a climb. This combination is vital for ensuring safe and efficient flight operations.