yes it would have been increased and whilst i couldn't say for cirtain i really wouldn't be supprised to hear it'd gone up to 16, as i recall (and we're going back a bit, i can't for the life of me remember which of my books i read it in) at the start of the war Fighter and Bomber commands had 12 aircraft per squadron, Coastal Command having 24, but obviously this increased during the war, particularly in Bomber command, who had the biggest squadron in the RAF i've yet to come across, 101 sqn with a massive 42 aircraft on strength at once!