If this is open for voting... I vote Red, or Chrome
Just as an aside, as I only saw this thread today; SAC also stands for the rank I was when I left the Air Force, and is also the reason that the RAF, RAAF and RNZAF airmen/women are referred to as "crabs"
Stands for Senior Aircraftsman or woman
& also; some clever fugger figured out that Crab is defined as
Sideways
Ambling
Crustacean in the Oxford English Dictionary.
Still, can't complain... The other forces get it worse than I did... "fishhead" (seaman), The RN clearly don't even like other branches of their own force, since they also split into: "bubblehead" (submariner) & Carrier Queen (Usually AEM's (Air Engineer / Mechanics, who work exclusively on flat tops) and then there's the poor old army who get called: "pongo's" heh heh heh
& RM's get called Bootnecks... Good grief, could go on all day here!
Anyway, the point being; I may well avoid acronyms as they can mean many many different things to different people... But looks like you aren't using that one anyway