Romeocharlie,
Thanks for the reference. Say worst case 8% is flight crew costs.
A 20% B scale saving on 8% of flight crew costs is 1.6%.
If fuel is 50% of the cost base(largest expense) and the 787 burns 40-50% less fuel, then that is a 25% cost base reduction on fuel alone in getting the 787.
So lets get this straight. The 787 cannot make sense unless Qantas get a 1.6% reduction in flight crew costs via a new type B scale agreement.
So the fuel burn saving is 13.88 times the flight crew savings but No new shiny 787s without a pilot B scale.