Harrier use thrust control only when hovering, and it's not control suface but localised "thrust tubes" that allow control, the same way as notar copter if you want to. Or the same way as our RC models vector system

The news here is that air thrust is used instead of "classical" control surfaces with the same effects on the plane. That's more than just a "thrust tube" and not a vectorial control system and I don't fully understand how it work to have fully control. [:@]

That's interresting...