Blind pew.
I have experienced high altitude rotor over the Pyrenees in an airliner and it was not funny at all.
Started at FL380. Climbed to 390 at Mmo/ idle power, followed by loss of I think 5000' with full power and intermittent stick shaker.
It was over a waypoint called TURBO.
I guess there was a clue there, had I only known it.....
Strong northerly Jetstream of about 90kts.
It damaged the aircraft fin cap and scared us both ****less.
Luckily ATC warned us of 'Windshear' over the mountains, so we'd buttoned up the cabin. Was quite a ride though and it seemed to go on for ever.
I let the FO fly it!
