When is the windshield heated?

When is the windshield heated?

• A. Anytime there is a generator online to the electrical buses and the system determines it is needed
• B. Only when the Pitot Static Heat switch is On
• C. Only on takeoff and landing
• D. Only in extremely cold weather when explicitly commanded

Answer: (A)

Windshield heating is an automatically controlled function tied to the aircraft’s electrical system. When a generator is online and power is available, the system’s logic decides if heating is needed to keep the windshield clear of ice or fog, and it turns the heat on accordingly. This makes windshield heat an automatic load that helps ensure visibility without relying on a manual setting tied to specific flight phases. The Pitot Static Heat switch handles a different system (pitot heat) and doesn’t govern the windshield, so you wouldn’t rely on that switch to determine windshield heating. It isn’t restricted to takeoff and landing or to extremely cold conditions commanded from the cockpit; it operates whenever power is available and the system deems heating necessary.

Windshield heating is an automatically controlled function tied to the aircraft’s electrical system. When a generator is online and power is available, the system’s logic decides if heating is needed to keep the windshield clear of ice or fog, and it turns the heat on accordingly. This makes windshield heat an automatic load that helps ensure visibility without relying on a manual setting tied to specific flight phases. The Pitot Static Heat switch handles a different system (pitot heat) and doesn’t govern the windshield, so you wouldn’t rely on that switch to determine windshield heating. It isn’t restricted to takeoff and landing or to extremely cold conditions commanded from the cockpit; it operates whenever power is available and the system deems heating necessary.