"As for French, I was under the impression that all communication done in Aviation is in English. If this is not the case then I bow to superior knowledge!"
To everyone else in aviation, yes, but not necessarily to customers! Only 21% of the world speaks English. I would say do the French, then Spanish will come easier later on (just add an o to the end of each word
). As long as you're doing physics, maths/electronics are not as important.
A cheap upgrade for a low hour pilot is a second or even a third language. I know one senior pilot who speaks 6 languages and is never out of work.
Phil