History behind the range red and yellow flags?

[Tim N]

Hi All,
Does anyone know the origin of the range flags?
At an Anzac Day service conducted by a surf club they said the red and yellow goes back to WW1 as a sign of friendship etc these are also the surf flag colours
Maybe no connection
Just interested in knowing
Thanks

[Razer]

Doesn’t appear to be anyone who knows which is unusual.
All that I know is that the Artillery flags always showed red on top of their identification flags/plates.
I was also told the the red represents blood and the yellow the sand. Possibly a connection to Gallipoli?
But, this may have been just an easy way to teach newbies which way to fly the flag.

[Tim L]

I don't think there is much history to it. Red flag, generically, simply means "danger".
Our red flags denote the danger area, as required by JSP 403, which dates back many years..
A yellow flag on a ship means, presence on board of a desiese or contagion. It appears to have been adopted to simply mean presense on board, but no shooting.