Which two marker light types are required for jet aircraft?

• A. Edge and arresting system
• B. Distance-to-go and arresting system
• C. Edge and approach
• D. Distance-to-go and approach

Answer: (B)

The key idea is how marker lights support precision for high-speed jet approaches. For jets, the two marker light types that are required are distance-to-go lights and the arresting system indicators. Distance-to-go lights give the pilot a visual cue of how much runway (or deck) remains to touchdown, which is critical when working with limited landing space and final-approach timing. The arresting system indicators mark the location and status of the arresting gear, helping the pilot align with and engage the arresting wires when landing on a carrier or other arresting-capable runway. Edge lights outline the boundaries of the landing surface and approach lights guide the approach path, but they are not the marker light types specified for jet operations.