Abbreviations
Actually, FRI is an initialism, if you pronounce it F-R-I. If you were to say FRI as in 'fry' then that would make it an acronym.
An abbreviation is a shortening of a word or a phrase.
An acronym is an abbreviation that forms a word e.g. BASIC, RADAR etc.
An initialism is an abbreviation that uses the first letter of each word in the phrase (thus, some but not all initialisms are acronyms).
Anyway, back to Virgin, would they consider guys in the 2000+ bracket with an ATPL ready to go?