Contaminated runways have large takeoff weight penalties because takeoff distance is increased.

Contaminated runways have large takeoff weight penalties because takeoff distance is increased.

• A. False
• B. True
• C. It depends on the aircraft weight
• D. Only landing is affected

Answer: (B)

On a contaminated runway, grip and rolling resistance are reduced, so it takes longer for the airplane to accelerate to liftoff speed and actually get airborne. Because the required takeoff distance increases, the aircraft has to operate at a lighter weight to stay within the available runway. Heavier airplanes amplify the extra distance needed, so the reduction in takeoff weight can be substantial. That’s why this statement is true—the contamination causes more takeoff distance, which imposes a noticeable weight penalty to ensure a safe takeoff within the runway limits.

On a contaminated runway, grip and rolling resistance are reduced, so it takes longer for the airplane to accelerate to liftoff speed and actually get airborne. Because the required takeoff distance increases, the aircraft has to operate at a lighter weight to stay within the available runway. Heavier airplanes amplify the extra distance needed, so the reduction in takeoff weight can be substantial. That’s why this statement is true—the contamination causes more takeoff distance, which imposes a noticeable weight penalty to ensure a safe takeoff within the runway limits.