the last days passed by quickly as i was kept busy filing numerous reports about my last flight from europe to chicago, when exiting a jetstream at FL320 we felt a few abrupt jolts from the moving air-mass and at the next second gained more speed than the aircraft was certified for.
maximum would be MACH 0.90 and we reached M 0.94 despite all efforts to slow down with engines running on idle and the speedbrakes halfway extended.
good thing the 747-8 could take it without the slightest high-speed-buffet and kept on flying nice and smooth to a normal landing in chicago, but had to be parked there for an 7 hours thourough inspection before everybody was shure its still in good shape.
accompanied was the experiance by numerous reports i had to file which kept me busy for a while.
you see today a map of the jetstreams on the atlantic ocean that caused my troubles,
a good groundspeed (there is a website for records by aircraft type: http://www.groundspeedrecords.com ),
and some surfing on top of the clouds into a quick sunrise flying eastbound into the sun.
cu brgds
nuck