What does the signal flag Charlie commonly signify?

• A. Yes or affirmative (context-dependent in signals)
• B. Danger
• C. Proceed with caution
• D. Maintain course

Answer: (A)

In flag signaling, Charlie is used to express a positive reply. It serves as an affirmative acknowledgment—basically saying “yes, I understand” or “yes, I’m proceeding as requested.” This makes it a handy visual way to confirm instructions when radio or voice communication isn’t available or to give a quick confirmation in a situation that requires fast, clear signaling. The idea that it’s context-dependent reflects that, in some procedures, Charlie can be used to confirm a specific question or instruction, but the most common use is a straightforward yes.

It’s not used to indicate danger or to tell others to proceed with caution or to maintain course; those meanings come from other signals or combinations. If a ship asks, “Are you ready to come alongside?” Charlie would commonly be the quick answer of “Yes.”