Glad to see your insistence on the term 'First Officer', I think 'co-pilot' is horribly outdated and its use shows someon'e 'mind set'!
Please explain?
I used the term 'co-pilot' on this anonymous forum as I do not know if probationary PPRuNer LOTSO's colleagues were either Captains, Senior First Officers, First Officers, Junios First Officers or Cadets. Or perhaps Wing Commanders and so on.
By the way Craggenmore.....the term we use is First Officer
What do you mean by 'we'?