CASA explains the rules (Please explain).

[Moneybox]

4 hours ago, spacesailor said:

I have never heard of this list ! .

Only  a ww1 children's book .

So , one for yes  'Affirmative ' .

Maritime similar. 

5 horn blasts = what is your intention / danger. 

But mostly confusion! .

spacesailor

 

That's about as confusing as all the acronyms I try to decipher now.