Wake turbulence separation in the cruise
I was wondering how you controllers separate the Heavies from the rest of us at altitude.
I recently had a rather unpleasant encounter in a 737 with what can only have been a heavy or super's wake in the climb around FL380 that involved some nasty roll excursions and some serious buffeting and wondered how this is dealt with. On this occasion the controller couldn't see an obvious offender on his scope so the wake is clearly seriously persistent.
Obviously separation in the climb is harder as you can't predict our rates as to where we might pass through the level of a cruising heavy or the propagation of the vortices but I would be interested in some controller input about how you handle it.