No wind, 29.92, 15°C, june, 08H00, empty loadout with pylons removed, no gun ammo, 100% fuel.
Take off from runway at Mineralnye Vody and climb up to 37000ft, I reach M2.2 in level flight. Then climb to 40000ft and reach again M2.2 before descending to Krasnodar to land out of fuel.