What activates pusher ice mode in an aircraft?

The activation of pusher ice mode is linked to the operational status of both the propeller de-ice system and the inertial separation system. When these two systems are functioning, the aircraft is effectively equipped to deal with ice accumulation on the propeller, which can affect performance and safety. This mode ensures that the propeller operates efficiently while in ice-prone conditions. The systems are designed to work together, enhancing the aircraft's capability to maintain performance even in adverse weather conditions that may cause icing.

The other options reference various aircraft performance metrics or configurations, but none address the specific operational state required for activating the pusher ice mode. For instance, factors like airspeed, angle of attack, or landing gear status are not directly linked to the activation of this particular system. Instead, they relate to broader operational considerations but do not facilitate the specific activation criteria for the pusher ice mode identified.