What instruments support bank calculations during a constant airspeed climb from straight and level flight?

The attitude indicator and turn coordinator play crucial roles in supporting bank calculations during a constant airspeed climb from straight and level flight. The attitude indicator provides the pilot with information on the aircraft's orientation relative to the horizon, which is essential for maintaining the desired bank angle. This allows the pilot to control the aircraft’s pitch and roll effectively to achieve the proper climb rate while also managing the aircraft's bank angle.

The turn coordinator complements the attitude indicator by indicating the rate of turn and assisting in maintaining coordinated flight during maneuvers. When climbing with a bank, these instruments work together to ensure that the pilot is aware of how much bank is being applied, thereby helping maintain altitude and airspeed appropriately without entering undesirable flight conditions such as excessive bank or stall.

Other choices, while they contain useful instruments, do not specifically assist with bank calculations as effectively as the attitude indicator and turn coordinator do during a climb.