Which components receive Full probe heating when a generator is on?

Which components receive Full probe heating when a generator is on?

• A. AOA and Static Port
• B. Pitot Tubes
• C. Altimeters
• D. Cockpit Windows

Answer: (A)

Full probe heating is used to keep air data sensing surfaces ice-free so readings stay accurate when power is available. The most critical data for flight safety come from the angle-of-attack sensing vanes and the static ports, since these feed the air data system that informs the flight instruments and protections. When a generator is on, those sensors are heated at full power to prevent ice from forming and distorting the readings. Pitot tubes do heat as well, but their heating is often controlled differently or not at the same full level in this setup, so they aren’t considered part of the “full probe heating” on this item. Cockpit windows and other components use separate anti-ice or defog systems, not the probe-heating circuit.

Full probe heating is used to keep air data sensing surfaces ice-free so readings stay accurate when power is available. The most critical data for flight safety come from the angle-of-attack sensing vanes and the static ports, since these feed the air data system that informs the flight instruments and protections. When a generator is on, those sensors are heated at full power to prevent ice from forming and distorting the readings. Pitot tubes do heat as well, but their heating is often controlled differently or not at the same full level in this setup, so they aren’t considered part of the “full probe heating” on this item. Cockpit windows and other components use separate anti-ice or defog systems, not the probe-heating circuit.