Used to fly Tupolev154
En cruise she goes at M0.82
MAX TU154M M0.85
TU154B 0.88(older version guzzling 6 tons/hour)
TU 204 with PS-90 engines roughly 3.5 t/h, but it's quite slow M.72-78
TU154M is a nice and very reliable aicraft. Onboad flight control computer (enhancing hydromechanical flight control ) is from some rocket.
But it's very easy to do a hard landing - without engine power it nicely goes down! Whet it's hot and high we used to add some RPM (up to climb power
when it's heavy) during flare, and then set idle.