[FIXED] World Update 3 has broken flight dynamics, exhibit A

Same here! Can confirm that exactly the same happens to me several times since latest update.

Or FIX it, by setting better parameters in the cfg files, and down the slippery path you go !!!

In last 2 days just after this update, I find my self trying to fix c172 flight_model.cfg to fit real aircraft flight dynamic as I know as flight instructor.

I know last update was change ground effect and flaps but I think there are another changes in aircraft stability and control response and stall behavior.

I thing flight dynamic before the changes was better.

What do you think ?

Well, my experience is as follows. I’ve only flown the Caravan since the update so can’t vouch for the other planes.

  1. With takeoff flaps, you have to hold the plane on the ground to reach Vr (70 knots); otherwise, the thing will start floating at about 50 knots.

  2. Upon reaching Vr, with the nose essentially level, the plane leaps into the air and rises rapidly, as if on an elevator, even with a heavy load.

  3. Retracting flaps causes MUCH more nose-down pitch than previously. Conversely, lowering flaps causes MUCH more nose-up than before. But this just means a lot more trim input needed than before, which is kinda nice because this effectively decreases pitch trim sensitivity, actually making it easier to trim the plane.

  4. Full flaps cause massive drag, as if the old, erroneous spoilers have returned. You now have to use about 75-80% power on final to maintain flying speed. But otherwise, once properly trimmed, the glideslope and nose attitude seem about the same as before.

  5. There is now rather more floating in ground effect than before. However, this is pretty easy to solve by retracting some or all of the flaps. Not ideal but it’s a viable workaround.

  6. I have noticed no change in braking, either with the wheels or reverse thrust. So all in all, I can still make the thing hit the ground where I want (by retracting the flaps as I flare) and then I can still stop in the usual distance.


The more I fly the 172, the more I notice the small differences. It definitely doesn’t want to descend as quickly as it once did, even with full flaps. What I’ve taken to doing is coming it at 50kts rather than 60kts, and that feels more like it did before.

I hope Asobo can deal with this soon. It’s flyable, but doesn’t feel quite right any more.

On another note, I had that rare issue where after landing, and I have hit the breaks quite hard, I came to a dead stop, but could no longer move. I wasn’t paused, engine was running, parking brake was not set etc. Tapping the slew key didn’t do it, but slewing then moving up a bit allowed me to fly away, and land again. That’s only the second time I’ve seen that.

A post was merged into an existing topic: Discussion: World Update III: United Kingdom

Are all aircraft affected? The TBM, Longitude, A320 cannot be landed in a realistic way. I can’t believe that they took their time to “polish” the update and they missed this??? WTF Asobo??? And this ain’t the first time this has happened…what a joke of a QA process.


Yep, the Caravan is totally nerfed at the moment, simply ridiculous. Here’s a shot of me floating along with full flaps down and the throttle at idle, it’s just very slowly descending with no stall warning at 43knots. In summary totally useless.

I was about to start FSEconomy today using the Caravan and now that’s ruined until a patch comes out.

I simply cannot understand how Asobo could be so incompetent as to release an update that does this to a so called flight simulator. Get your act together Asobo and use a volunteer beta team to test for this sort of stuff, because you lot are not up to it by yourselves.


The same on the Cessna 172SP !

Yeah…Asobo is a mess…this is not the first time this has happened where flight mechanics are broken rendering the aircraft un-flyable…WTF.

Wow, retracting flaps on flare. Outrageous to have to do this.


Have asobo even accepted this is an issue? I didn’t seen anything on the known issues post on zendesk when I checked earlier.

If they simply missed this in testing then that is disappointing but if actually it was known pre release this is probably worse.

The community reps have acknowledged it in this thread if you scroll back up and have a look. The thread title has ”[REPORTED]" in it, I didn’t put that there. Presume the community reps did to flag that this has been escalated to the Devs.

A new feedback snapshot has just been released. This issue isn’t on the bugs list. A rep said they compile those lists earlier in the week so this just missed the cut. They also said that this issue is getting a lot of attention from the Devs and that they’d have some messaging on it very soon.


No doubt. Just tried the Baron at KDAB. Stall horn comes on at 58kias flaps full, gear down, throttles at idle. It’s supposed to be 85kias. Also, VMCA is a joke and the engine can’t be feathered. Reducing prop to feather and even just about stalling the aircraft to “reduce windmilling” does nothing to stop the prop. Just add in mixture again (mixture used to deaden the engine) and it starts right up again.

Holy god they have some work to do.

For the TBM930 (only) others not tested

this works for me - how to fly again - Community / General Discussion - Microsoft Flight Simulator Forums

Look for the line:

in the flight_model.cfg

now is:
lift_coef_ground_effect_mach_table = 0.0565: 1.25
change to:
lift_coef_ground_effect_mach_table = 0.0: 1.10, 1.0: 1.10
now is:
lift_coef_flaps = 1.03210
change to:
lift_coef_flaps = 0.60000

test it

best regards


They sure do, what a mess. I’m really fuming over this one.

That’s good to hear, hopefully they will release a hot fix ASAP. How they managed to mess this up is beyond me.

Ground effect should be more pronounced in low wing aircraft.

Float when too fast will be worse in an aircraft with laminar flow wings like the Mooney (the reason it has spoilers)

A Mooney floating off the end of the runway if you are 5 knots too fast is probably realistic.

Caravans which are basically bricks with wings probably should not float much.

Caravans are often used for short dodgy grass strips in places like New Guinea and have pretty good STOL characteristics, they are definitely not "floaters’, unlike this sim atm. :grin:

It’s not as bad, but it is there.

I’ve just been flying the Seminole, and it’s affected too. I tend to find I need to approach at much shallower angles now.

I just did a flight with the Working Title CJ4 mod. This mod was 100% fine pre-patch. I did two flights yesterday and they were fine, however, I just did a flight and when landing I had to hold my stick ALL the way forward and if I let it go, even as low as 20kts, it was still trying to take back off.

This needs to be fixed immediately.