Net growth of 25 AC in 6 years, 25x8(Capt's )=200 plus 100 to 200 retirements in the same period gives you 300 to 400 total upgrades in the next 6 years, slowing down after that. Neither fleet new hire has a AC to upgrade on in the current plan. This has all been said before more than once. Most of those upgrades on the 380.