I was aboard the committee vessel Stad Amsterdam at 0540 when the first hoist went up. A northwesterly had blown through overnight, leaving the course marks off position. But it was the flags that set the rhythm — code flag November, chequered blue-and-white, above the committee signal. Before a word was spoken on the radio, the visual grammar of the sea had already asserted itself.

The Grammar of the Sea

The International Code of Signals, first published by the British Board of Trade in 1857, was never designed for racing. It was a commercial instrument — a way for merchant vessels to communicate course changes and distress without a shared language. Code flag Bravo, plain red swallowtail, means I am taking in dangerous cargo. Fly it at a regatta and it signals protest. The meanings layer like varnish on teak.