Do you type "An fps" or "A fps"?

[Nerdfury]

Pronounced "eff-pee-ess" and therefor should have an "an" article.

Regardless of pronunciation, it is not spelt with an E to begin with. Therefore, grammatically speaking, the correct way to say and write it is "a FPS", and same goes for "a RPG". Works better if 'a' is pronounced 'u', as in Queen's English.
English = weird.

As a follower of the King's English, devout Monarchist, and a self-professed Grammar Nazi (typos excluded), the use of the 'an before vowel' rule also applies to acronyms, as the creation of an acronym also alters to pronunciation and, therefore, applies standardised English grammar rules to it.

Surely it should only apply to acronyms beginning with vowels e.g. A.I.

Nope. It's got nothing to do with the letter it starts with, but the sound it phonetically starts with. F starts with E, phonetically, which means it's prefaced with an, and not a.[/I]

The An is placed in front of a vowel or a letter that begins with a vowel phonetically. F = eff or ef. Example:

A ZPM

Atlantis could always do with another ZPM!

Though the 'an HRD' depends on whether you pronounce the letter H with or without the H at the front.

 

[TikiShades]

You use 'an' before.... oh god what's the term.... errr.... having a mind blank right here, but things like 'fps' 'rts' 'nasa' 'kgb' etc.

Acronym?