How many wing anti-ice schedules are there?

How many wing anti-ice schedules are there?

• A. One
• B. Two
• C. Three
• D. Four

Answer: (B)

Wing anti-ice protection on the CRJ-550 is arranged with two independent control schedules, one for each wing’s leading edge. Each wing has its own anti-ice circuit and sensor feedback, so the system can manage heating separately rather than sharing a single schedule. This dual-schedule setup provides redundancy and ensures both wings receive protection in icing conditions. Therefore, there are two wing anti-ice schedules.

Wing anti-ice protection on the CRJ-550 is arranged with two independent control schedules, one for each wing’s leading edge. Each wing has its own anti-ice circuit and sensor feedback, so the system can manage heating separately rather than sharing a single schedule. This dual-schedule setup provides redundancy and ensures both wings receive protection in icing conditions. Therefore, there are two wing anti-ice schedules.