Damp Runway is defined as which of the following?

Damp Runway is defined as which of the following?

• A. A runway is damp when it is not perfectly dry, but when the water does not give a shiny appearance. For purposes of takeoff and landing performance, a damp runway is considered to be a dry runway.
• B. A runway is damp when covered in standing water.
• C. A runway is damp when completely dry.
• D. A runway is damp when it is icy.

Answer: (A)

Damp runway means the surface has moisture but is not completely dry, and you don’t see a shiny water film or standing water. This condition is treated as dry for takeoff and landing performance calculations, so dry runway figures are used in planning. The idea is that the amount of moisture isn’t enough to change the performance significantly, unlike when the surface is truly wet, icy, or has standing water. If the surface were standing water, or if it were completely dry or icy, those conditions would not be damp.

Damp runway means the surface has moisture but is not completely dry, and you don’t see a shiny water film or standing water. This condition is treated as dry for takeoff and landing performance calculations, so dry runway figures are used in planning. The idea is that the amount of moisture isn’t enough to change the performance significantly, unlike when the surface is truly wet, icy, or has standing water. If the surface were standing water, or if it were completely dry or icy, those conditions would not be damp.