Originally Posted by
LowObservable
TV has also been advertised, on occasion, as achieving superior maneuver at less weight/drag penalty than doing the same with bigger aero surfaces, actuators &c.
Although this is frequently stated anectdotal evidence for this is scarce - to be polite.
Neither of the current TVC deigns use the Nozzles for sustained turns.
It should be noted that in an longitudinally unstable design (which are practically all actual FBW designs) the aero surfaces only create downforce during the initiation of the maneuver. After that they start creating lift, especially since most unstable designs have an increasing Pitch Moment with increasing AoA.
The instability margin of the EF was limited by the capability of the Canard to get the nose back down from high AoAs.
So in brief, I don't see how TVC will improve Sustained Turn Rate one bit.
It might help g onset rate and thereby ITR from stationary flight.