How is RLD defined when the runway is wet?

How is RLD defined when the runway is wet?

• A. 60% of available runway x 15%, if wet
• B. 60% of available runway x 15%, regardless of weather
• C. 100% of available runway
• D. 40% of available runway

Answer: (A)

The idea being tested is how wet conditions change how RLD is defined. On a wet runway, the rule used here is to apply a weather-dependent adjustment to the usable runway. Specifically, RLD is defined as 60% of the available runway length, then multiplied by 15% for the wet condition. This reflects the added caution required when braking action is reduced on a wet surface. So the correct approach uses that weather-specific calculation rather than applying the same rule as in dry conditions, assuming full runway use, or using a different percentage.

The idea being tested is how wet conditions change how RLD is defined. On a wet runway, the rule used here is to apply a weather-dependent adjustment to the usable runway. Specifically, RLD is defined as 60% of the available runway length, then multiplied by 15% for the wet condition. This reflects the added caution required when braking action is reduced on a wet surface.

So the correct approach uses that weather-specific calculation rather than applying the same rule as in dry conditions, assuming full runway use, or using a different percentage.