Overstress
BA last full year proftit - c £130m
On your figures there are 3500 Fcrew. Average salary I would guess would be a minimum of £60,000. 30% rise would be £18,000 equivalent to well over £20k once you factor in NI/ pension etc. But let's use
£20k to keep it simple.
£20k per person over 3500 people is £70m
over half last years profit. Unaffordable I'm afraid without cuts elsewhere.
Hope the maths isnt to difficult for you!!