Signal flags

Signal flags are visual communication tools used primarily by ships and maritime stations to convey messages over distance. Each flag or combination of flags represents specific letters, numbers, or messages, allowing crews to communicate important information such as safety alerts, navigational instructions, or distress signals without spoken words. They are standardized internationally, ensuring clarity across different languages and regions. Signal flags are raised on ship masts or displayed on land-based stations, serving as a reliable, silent method of communication in situations where radio or electronic communication may not be practical or safe.