I'm having trouble working out the ?US abbreviations for lighting, found at worldaerodata.com and supplied from DAFIF.
In particular - approach lighting systems, which appear to have a single letter code.... eg M J X S A or others.
Also VA and BO have stumped me totally! Unless VA is a type of VASI...?
To put it in context:
Thanks in advance to anyone who can supply a list (been trawling US airport abbreviation lists for some time) or just tell me what the above means!