Which signal is used to indicate that a vessel is towing another vessel in fog?

Which signal is used to indicate that a vessel is towing another vessel in fog?

• A. One prolonged blast.
• B. Two short blasts.
• C. One short blast.
• D. One prolonged blast followed by two short blasts.

Answer: (D)

In fog, signaling towing status uses a distinct pattern: one prolonged blast followed by two short blasts. This combination is specifically defined for towing operations under the collision regulations. The long blast grabs attention, and the two short blasts indicate that the vessel is towing another, alerting nearby vessels to expect the tow and to give extra space since towing can reduce maneuverability and increase stopping distance. Other signal patterns do not convey that a tow is in effect, so this exact sequence is the recognized way to indicate towing.

In fog, signaling towing status uses a distinct pattern: one prolonged blast followed by two short blasts. This combination is specifically defined for towing operations under the collision regulations. The long blast grabs attention, and the two short blasts indicate that the vessel is towing another, alerting nearby vessels to expect the tow and to give extra space since towing can reduce maneuverability and increase stopping distance. Other signal patterns do not convey that a tow is in effect, so this exact sequence is the recognized way to indicate towing.