@LouisConde Understand that basically ALL of the real backbone logistical equipment we're using is extremely old already, Everything above was probably built in the 60's to 80s at the latest, and is only NOW getting updated avionics, powerplants, and control systems. USAF has gotten rid of the oldest of the old, but most everything in flight that's bigger than a fighter is, as guys on the line call it, "my grandfather's plane"