Which color light is used by U.S. Navy submarines on the surface for identification at night?

Which color light is used by U.S. Navy submarines on the surface for identification at night?

• A. Amber
• B. Green
• C. Blue
• D. White

Answer: (A)

Submarines on the surface at night use an amber identification light to signal their presence and identity to other vessels. This color is chosen because it stands out from the standard navigation lights (red, green, and white) and allows other mariners to recognize that the vessel is a submarine, aiding in collision avoidance and safe navigation. The other colors are tied to usual navigation signals or have no specific identification purpose in this context, whereas amber is specifically used as the submarine’s identification light.

Submarines on the surface at night use an amber identification light to signal their presence and identity to other vessels. This color is chosen because it stands out from the standard navigation lights (red, green, and white) and allows other mariners to recognize that the vessel is a submarine, aiding in collision avoidance and safe navigation. The other colors are tied to usual navigation signals or have no specific identification purpose in this context, whereas amber is specifically used as the submarine’s identification light.