International Flags and Morse Code Signals
| Phonetic | Morse | Flag | Meaning | Racing |
| Alpha | ._ |  | Diver Down; Keep Clear |
| Bravo | _... |  | Dangerous Cargo |
| Charlie | _._. |  | Yes |
| Delta | _.. |  | Keep Clear |
| Echo | . |  | Altering Course to Starboard |
| Foxtrot | .._. |  | Disabled |
| Golf | _ _. |  | Want a Pilot |
| Hotel | .... |  | Pilot on Board |
| India | .. |  | Altering Course to Port |
| Juliett | ._ _ _ |  | On Fire; Keep Clear |
| Kilo | _._ |  | Desire to Communicate |
| Lima | ._.. |  | Stop Instantly | Come Within Hail or Follow Me |
| Mike | _ _ |  | I Am Stopped |
| November | _. |  | No | Abandonment |
| Oscar | _ _ _ |  | Man Overboard |
| Papa | ._ _. |  | About to Sail |
| Quebec | _ _._ |  | Request Pratique |
| Romeo | ._. |  |
| Sierra | ... |  | Engines Going Astern | Shorten Course |
| Tango | _ |  | Keep Clear of Me |
| Uniform | .._ |  | Standing into Danger |
| Victor | ..._ |  | Require Assistance |
| Whiskey | ._ _ |  | Require Medical Assistance |
| Xray | _.._ |  | Stop Your Intention | Individual Recall |
| Yankee | _._ _ |  | Am Dragging Anchor | Life Jacket |
| Zulu | _ _.. |  | Require a Tug |