The color used for the helicopter trail line is what?

• A. Orange
• B. Blue
• C. Green
• D. Red

Answer: (A)

High visibility is the key for markings on a helicopter flight deck. The trail line marks the path the helicopter should follow during approach, hover, and taxi, helping the pilot stay aligned and the crew stay clear of rotor wash and deck equipment. Orange is used because it stands out against the gray deck and the blue of the sea in all lighting conditions, making it easy to see from the cockpit and from the deck. This reduces the chance of misalignment or collisions during critical phases of flight. Other colors can blend in or carry different meanings, so orange serves as a clear, unambiguous safety cue for where the helicopter should travel.