Yes, I was referring to the 111. Even the early ones with the lower powered TF30s were cleared for M1.2 at SL, up to 2.5 at altitude. The curves in the performance manual graphs continued past those limits, as did the jet itself (if it didn’t have a compressor stall above around M2.2, which was solved with the intake redesign). But let’s not hijack the Tonka’s thread!