FBW in flight activation issue

[Demongornot]

I don't know if this is intended, but i seriously doubt that the FBW on the real aircraft do all that.

 

I was on a combat server with the Su-27, condition :

No trim and flight by wire disabled before take off, i wanted to test in combat situation how this is to have pure flight experience cause i haven't test the Su-27 without FBW with weapons before, i wanted to see the difference with FBW ON and OFF, mainly to see if there is any link with the constant trim that we always need that a lot of peoples complain about !

Fuel, gun, flares chaff all full, fuel probably around 95% minimum (take off without afterburner, i was close from the TO airport) !

Payload :

ECM, R-73, R-27ET, R-27ER, R-27ER, R-27ER, R-27ER, R-27ET, R-73, ECM

 

I was flying stable at low altitude, less than 1000M radar altitude, around 700/800 Km/h, then i wanted to compare the difference on a fully combat loaded Su-27 between flight by wire and direct controls.

 

So i turn ON the FBW (and YES i'm sure i've turn it ON and not OFF) and my aircraft goes high AOA and almost do the Cobra by itself, while constating this i have try to push nose down, since he was responding and starting to lower the nose, i was pulling up to avoid the negative G to death effect, and then it have still happen !

 

So the flight model is apparently pretty good, but the FBW is a pain and need serious rework !

And based on what have happened here i'm sure i can safely say that the too intensive needed trim are caused by the FBW, without FBW i don't need to trim and i don't need to move far from center my joystick to keep my aircraft stable, with FBW we need constant and exaggerated trim to keep the aircraft stable, there is a too big difference on needed stick position between FBW ON and OFF !

 

Also another issue i have see, with the FBW ON even while performing negative G manoeuvre this is difficult in standard diving condition to get this negative G to death effect, of course without the FBW this is easy !

But once we disable the FBW and turn it ON again, even in a standard condition, if we pull down we will get the negative G to death, this is another issue with the FBW !!!

 

Also i have notice that the gear handle have a strange delay when the FBW is turn off !

 

 

I don't know if this is a normal behaviour or not but when i disable the FBW and use the Roll axis, the vertical surfaces control follow the movement, (it look like a FBW feature to me) but with the fully combat loaded i don't get this effect, once FBW was turn off only the rudder make the vertical surfaces control responding !