airplane or aeroplane?

[hatwoman]

I really don't like airplane but not sure I can "correct" it in a multi-national environment. On the other hand we have "colours" etc so maybe I can?

I always assumed "airplane" was an Americanisation (if that word exists). So if you are in the UK and not writing to Americans, then use "aeroplane". Just as you would write "colour".

I might have made this all up though.

I always thought it was aeroplane. Never heard 'airplane' before apart from as a film title years ago.

Aeroplane is British English, airplane is American. If you are representing the views of a British based company then use the British spelling, especially if you already use correct spellings for Colours, etc.

we're not British at all. Extremely international with a schizophrenic style guide that has colours but organization. As well as a very un-English un-style guide-like laissez-faire attitude to language.