What is the AAS maximum takeoff/landing crosswind for contaminated conditions with all flaps?

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

Answer: (A)

Crosswind handling during takeoff and landing is limited by how well you can maintain directional control on a slippery surface. Contaminated runways reduce braking action and tire grip, so the crew must have enough rudder authority and centerline control to keep the airplane aligned with the runway, especially at low speeds during landing and during the initial liftoff phase. With all flaps extended, the aircraft presents a lower approach speed and more lift at those speeds, which helps stall margins but changes how it responds to crosswinds and gusts on a slick surface; this makes the crosswind tolerance more conservative. Taken together, these factors set a conservative maximum crosswind of 15 knots for takeoff or landing under contaminated conditions with full flaps.