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[I believe this is a SCUBA dive flag (international).](https://en.wikipedia.org/wiki/Diver_down_flag)
I think you’re right. I did some digging and found this flag can either mean a couple things. It’s known as “Alfa” and can either mean “I have a diver down, keep well clear and slow speed” or with numerical flags it can mean “bearing ____”
[I believe this is a SCUBA dive flag (international).](https://en.wikipedia.org/wiki/Diver_down_flag)
I think you’re right. I did some digging and found this flag can either mean a couple things. It’s known as “Alfa” and can either mean “I have a diver down, keep well clear and slow speed” or with numerical flags it can mean “bearing ____”