That would be nice to have on the CAA charts.....
I think my main concern was that is it an unofficial tool people in the industry like you to have? Don't really want to learn it for the sake of it but if other pilots would frown on me for not being able to rattle off any random code I'd rather learn it than come across like I could not be bothered to put the effort in.
Think thats what i'm trying to say
Just seen the post above.. Cheers