hi,
Today i took off from the runway 19R at ESSA and i could take off before the V1 and VR speed was reached. The FBW A320NX was Hevy loaded an take of config was 1/UP 1.1
Do oyu have any idea what this issue could be?
I use the newest experimental version of the fbw
regards legendsy
How much before V1?
I also bounce back and forth between the dev and exp version.
It’s interesting, for a while now the calculated V Speeds always result in the same, no matter what flap setting and no matter how much fuel is loaded or passenger/cargo weight is loaded. The calculation in the MCDU will always result in the same low calculated v speeds, something like 120-something knots V2. Don’t remember off the top of my head. It used to calculate them properly before in the past. Not sure what is going on. Opposite of what you experience I suppose, I have never tried to lift off before v1 to see if it would fly. I know the default 152 can fly at 20 knots full flap and still climb and accelerate. I hope the NX team implements a proper load manager.
Yep, this is possible also on the real plane.
How do you load you plane. Don’t use the MSFS ingame load menu (it does not work). Use only A32NX EFB and MCDU to load fuel and payload.
I think it were about 10 - 20 knots when i remeber me right. before v1 and vr speeds.
ok that is good to hear that can be also happen on the real a320.
i always use the tablet and fmc of the a320nx to load and refuel the plane
If you not follows the Airbus speeds and procedure Airbus will not support you if you damage the aircraft. They are made for safe flying, any other ops config are only for testpilots !
There is not only one limit for an Aircraft.
There are structural/physical limits, manufactor limits, FAA/EASA limits and Airline specific limits.
When the manufactor says, i.e. with a grossweight of 58t you need a Vr of 132kt you have a Vr of 132kt.
Maybe FAA would say no, due to certain facts from previous incidents there should be a Vr of 134kt. A specific Airline could say, ok 134kt is fine, we will use addional 2 kts.
And finally, the Aircraft has a structural or better a physical limit of maybe 122kt with tailtipping for that specific weight.
This is just an example, but that means, it is possible, that you lift the aircraft before Vr, in Sim and IRL.
Tell me about it!
Getting spares from Flybywire is a nightmare, I had a faulty waffle value and they refused to replace it 
From where did you get the value UP1.1?
Your business class passengers seem to be really heavy!
UP1.1 is not unsusal.
See FBW Checklist: FBW_A32NX_CHECKLIST.pdf (flybywiresim.com)
I use the EFB to load the fuel though I haven’t seen anywhere on the EFB an area for payload… 
Is it pretty much mandatory to use simbrief for payload data? Yes, I have been using MSFS payload manager to load it, so perhaps that’s my first problem.
up 1,1 is also a lot of trim up. Of course, totally normal if you’re heavily loaded, but again, it’s the purpose of the trim…to help you lift the nose easilier, according to load factor. Would you by any chance have used TOGA iso FLEX thrust ?
As I wrote, EFB for fuel and MCDU for payload.
If your speeds are always the same, I suspect your weight is always the same. So there must be something wrong with your payload setup (maybe via Simbrief).
I don’t calculate the a320nx take off performance. Because i dont find any calculator for the a320nx takeoff performance. so i use some values ​​that i thought up. And i use always the flex takeoff thrust
Try this excellent tools to calculate FLEX thrust and landing distances, I HIGHLY RECOMMEND !!! 
https://flightsim.to/file/28351/a32nx-performance-tool-flex-calculator-automatic