What does raising the Oscar flag signify?

Raising the Oscar flag, which is a flag of the International Code of Signals, signifies "Man Overboard." This is an important communication method used by vessels to alert those nearby that someone has fallen overboard. The flag is a visual signal that conveys urgency and prompts immediate assistance from nearby ships or personnel. It is vital for ensuring a swift response to increase the chances of recovering the person who has entered the water.

The other options do not represent the correct meaning of the Oscar flag according to maritime signaling standards. For instance, there are distinct flags and signals that indicate a vessel is anchored or in distress, and none of these are signified by the Oscar flag. Understanding the specific meanings of naval flags is essential for effective communication at sea.