And how much of the above can be put down to relative aircraft depreciation rates and expansion rates.
Any airline that has been expanding rapidly (the Middle East ones and Jetstar) will automatically have a lower aircraft age.
I suspect that over the last few years and the next few years with the aged 734s, 747s and 767s leaving the fleet that Mainlines average age will drop
TBM,
As for Delta.
How many $s in loans, employee super plans and contracts did Delta write off during its Chapter 11 process.
It would be the same as Qantas making all employees reduntant with no payouts, and then rehiring them on half their previous wages, as well as cancelling the bulk of debt, and walking away from a bunch of plane leases. And effectively sending the share price to zero.
Not something anyone wants I suspect.