What does the personnel working aloft flag (Kilo flag) look like?

The personnel working aloft flag, commonly known as the Kilo flag, is indeed a yellow flag with a blue square in the top left corner, divided by a horizontal line of different colors. This design is a signal to indicate that there are personnel working aloft or in the rigging, which is crucial for the safety of both the workers and the vessels in the vicinity. The contrasting colors make it easily recognizable at a distance, enhancing safety by alerting others to the presence of work being conducted above. The unique design helps in standardizing visual signals used at sea, ensuring that they can be understood universally by maritime personnel.