What is the maximum crosswind component for takeoff or landing on a contaminated runway?

What is the maximum crosswind component for takeoff or landing on a contaminated runway?

• A. 10 Knots
• B. 15 Knots
• C. 20 Knots
• D. 25 Knots

Answer: (B)

When a runway is contaminated, directional control and braking are more difficult because the tire-ground friction is reduced. The crosswind component—the portion of wind blowing across the runway—has an amplified effect on the aircraft during touchdown and rollout, so operators set a conservative limit for takeoff and landing in those conditions. The value chosen for this scenario reflects a safe, practical margin for a CRJ-550, aiming to keep the airplane controllable on a slippery surface while still allowing operations in light crosswinds. A smaller limit would unnecessarily restrict operations, whereas a larger one could compromise control and stopping performance on contaminated pavement.

When a runway is contaminated, directional control and braking are more difficult because the tire-ground friction is reduced. The crosswind component—the portion of wind blowing across the runway—has an amplified effect on the aircraft during touchdown and rollout, so operators set a conservative limit for takeoff and landing in those conditions. The value chosen for this scenario reflects a safe, practical margin for a CRJ-550, aiming to keep the airplane controllable on a slippery surface while still allowing operations in light crosswinds. A smaller limit would unnecessarily restrict operations, whereas a larger one could compromise control and stopping performance on contaminated pavement.