You have received a predictive windshear warning alert: The windshear is detected within ______ ahead of your aircraft if you're on the ground; or ______ ahead if you're in flight.

You have received a predictive windshear warning alert: The windshear is detected within ______ ahead of your aircraft if you're on the ground; or ______ ahead if you're in flight.

• A. 3NM; 1.5NM
• B. 5NM; 2NM
• C. 1NM; 0.5NM
• D. 2NM; 0.5NM

Answer: (A)

Predictive windshear alerts are tied to the phase of flight, giving the crew lead time to take corrective action. For the A320’s windshear predictive system, the warning distance is larger when you’re on the ground and smaller when you’re in flight. The and-then-takeoff or landing procedures rely on catching the hazard earlier, so you have more time to respond, whereas in flight you’re already moving faster and the system uses a shorter lead distance to provide timely but appropriate warning during climb or cruise transitions. That’s why the correct values are 3 nautical miles ahead when on the ground, and 1.5 nautical miles ahead if you’re in flight. The other options don’t match the established predictive thresholds for the A320 windshear system, and would either give too much or too little advance warning relative to the flight phase.

Predictive windshear alerts are tied to the phase of flight, giving the crew lead time to take corrective action. For the A320’s windshear predictive system, the warning distance is larger when you’re on the ground and smaller when you’re in flight. The and-then-takeoff or landing procedures rely on catching the hazard earlier, so you have more time to respond, whereas in flight you’re already moving faster and the system uses a shorter lead distance to provide timely but appropriate warning during climb or cruise transitions.

That’s why the correct values are 3 nautical miles ahead when on the ground, and 1.5 nautical miles ahead if you’re in flight. The other options don’t match the established predictive thresholds for the A320 windshear system, and would either give too much or too little advance warning relative to the flight phase.