1. If everything is normal, the stick commands a g loading... 1g is normal gravity, 0g is weightless, 2g is pulling back real hard. with the stick neutral, the plane maintains 1g.
2. If everything is normal, elac2 gives the orders to the elevators to maintain vprot if the thrust is insufficient. Fac has nothing to do with it. elac knows v.prot.
3. Actually is A.floor... not a speed, but an angle of attack. Calculated by the Facs, yes.
4. The autothrust is not on. in fact it will even disengage at A.floor if it was on. the TOGA command is sent straight to the engine . Autothrust is off throughout the whole thing... just the fac tells the engines to hit toga power and stay there.
helping?