What is the maximum X-Wind for ice?

What is the maximum X-Wind for ice?

• A. 12 knots
• B. 18 knots
• C. 20 knots
• D. 38 knots

Answer: (A)

Crosswind limits tighten when ice is present because braking and directional control are severely degraded. Ice on the pavement and on control surfaces makes it much harder to keep the aircraft aligned with the runway, and tire friction is greatly reduced, so even moderate crosswinds can lead to loss of control during takeoff or landing rollout. To maintain a safe margin, the aircraft’s limitation specifies a much lower crosswind value in icy conditions. That’s why the maximum X-wind for ice is 12 knots. The other numbers reflect limits under less severe conditions (dry or lightly contaminated runways), where braking and control are more reliable.

Crosswind limits tighten when ice is present because braking and directional control are severely degraded. Ice on the pavement and on control surfaces makes it much harder to keep the aircraft aligned with the runway, and tire friction is greatly reduced, so even moderate crosswinds can lead to loss of control during takeoff or landing rollout. To maintain a safe margin, the aircraft’s limitation specifies a much lower crosswind value in icy conditions.

That’s why the maximum X-wind for ice is 12 knots. The other numbers reflect limits under less severe conditions (dry or lightly contaminated runways), where braking and control are more reliable.