Supersonic was part of trip 3 (I think it was 3) at TTTE (Tri-National Tornado Training Establishment). Low level, over sea, most frames went supersonic easily but they had no pylons at all so no baggage (other than the talking baggage
). They also had less powerful engines than the sqn jets, never mind the GR4.
Sqn GR1/4 was a different thing though, >1.5kkg of pylons alone, never mind the drag from whatever hung on them. Still, with the single-crystal turbine blades and a bit decent trimming, I managed 590kts in dry power in one once, tanks, pods & all. She would go supersonic in reheat, but then stepped sideways when the fuel tanks started protesting so no real idea of max speed in B11 fit.
