For centuries, people have communicated in code by using hieroglyphics, smoke signals, cattle brands, sign language, braille, semaphores, Morse Code, and boating's International Code Flags to name a few.
Tell your students that they will be making real code flags called semaphores.
A further signal (Code flag X) and a sound signal (from the individual start lines) may indicate premature starter/s (OCS--On Course Side) by individual yachts, which must return and re-start.
* A further signal (Code flag X) and a single cannon fire may indicate premature starter(s) (OCS--On Course Side) by individual yachts, which must return and re-start.
The fade-resistant vinyl stickers are printed in seven colours and have been enlarged to 36cm x 16cm to be the same size as the International Code Flag Sticker.
Race officer Jeremy Whitty made the unusual choice not to use the black flag when the fleet became over zealous on the start line, instead using the "Z" code flag twice which invoked a 20 percent penalty for being over at the start rather than a disqualification.