I know it would take a bit of extra reading but as we are required to put endurance on the flight plan surely it appears on the flight strip for ATC. I know when I used to control aircraft (tactical, not ATC) I was always acutely aware of the endurance of each aircraft.
We are not required to put endurance on flight plans. Not since operational controlled reverted to the PIC were it rightly belongs and that was years ago, 25 -30 yes ago?