In runway condition codes, RCC 5 indicates a WET runway with what braking action?

• A. POOR braking action
• B. MODERATE braking action
• C. EXCELLENT braking action
• D. GOOD braking action

Answer: (D)

RCCs express how well a runway will hold braking based on its surface condition and contamination. A wet runway can still provide strong friction if the water layer is shallow and the pavement texture can grip the tires. In this scale, the highest code for a surface that is wet signals good braking action, meaning braking is effective and normal braking performance is expected. That’s why a wet runway with RCC 5 is described as having good braking action.

If you’re comparing to other possibilities, a poorer or moderate braking action would indicate more surface slickness or contamination, while an excellent rating would typically correspond to a dry or near-dry condition where friction is near maximum.