completely agree. exactly same behavior today while trying to do some touch and gos. the ground physics and interaction with runway are not as expected at all in real life, THIS IS A HUGE ISSUE since it does not allow you to take off runway with moderate crosswind component. having flown the real C172 many hours and holding a commercial pilot license i can assure that this behavior is extremely off. Example on the SIM: Taking off runway 11 with wind coming from 030 at 10kt. the airplane should try to face the wind since itâs the tail trying to align with it so the left turning tendency is INCREASED, this is a correct behavior but NOWHERE near to the level where this is happening in the sim. It is virtually impossible to counteract this with the right rudder because it seems the effect the wheels have on the ground are not accurate at all(as stated by flightsimmer845), the wind alone(specially 10 kts) should not have that much of an effect on the left turning tendencies, to the point where FULL RIGHT RUDDER is not enough to keep the the airplane on the runway, it eventually ends on the left grass strip no matter the efforts with rudder and ailerons opposite to the wind. I am in awe since supposedly these conditions are tested with real pilots that give the âgoâ everything is working at least moderately with accuracy, which is clearly not the case here, with the most flown airplane in the history of human kind. LOL
this was tested with a xbox wireless controller and no deadzones on the rudder axis, providing maximun effort which was not enough to counteract a 10kts wind of 80degrees crosswind.
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The default steam 172 has the new ground physics settings in place, but the default value of the tyre friction is far too low. You can either play around with the speed at which crosswind is nullified, and the point where it hits full strength, or you can adjust the tyre friction, or a combination of the two. I opted to leave crosswind as is at â-1000â so you feel the crosswind even when stationary, then upped tyre friction to 10 for both. This made a 15kt crosswind possible with some effort.
If you compare the two default 172âs there are many more differences between the two, where you might in fact think the only difference should be the avionics, and maybe some weight differences to the G1000 model.
Wind is configured as below, to give a crosswind from the left.
Iâve also repeated the same landing, same conditions, but with no crosswind correction.
hello friend, pretty informative but, i am a little lost here, how do you modify these settings you mention here?. the wind nullification and tyre friction??? thank you!
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The settings are in the file âflight_model.cfgâ. The lines I edited are in the first videos description.
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iâve been unable to find these settings in any of the c172 files
ground_high_speed_steeringwheel_static_friction_scalar = 10 ; 1.0
ground_high_speed_otherwheel_static_friction_scalar = 10 ; 1.0
Those two lines will be there, but they will both be set to 1.0. I merely changed them to 10, but then left the 1.0 there as a reminder, which is what the â;â is doing, ensuring anything after it is just a comment.
Both lines are in the file I mentioned above for the steam 172. They might not be there at all for the analogue 172, but it may have the other two lines, about crosswind. All four lines should work in either plane.
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Hi, Iâm interested to apply this mod too but I canât find the to lines mentioned by MARTINO188
What I got for the default Cessna 172 Skyhawk G1000 is shown below. Is the STEAM version different? Maybe I can add the 2 lines you suggested at the bottom of the file? Then, how to save? Thanks.
[FLIGHT_TUNING]
modern_fm_only = 1
cruise_lift_scalar = 1
parasite_drag_scalar = 1
induced_drag_scalar = 1.5
flap_induced_drag_scalar = 1.5
elevator_effectiveness = 1.0
elevator_maxangle_scalar = 0.51
aileron_effectiveness = 1.0
aileron_up_drag_scalar = 1.0
aileron_down_drag_scalar = 1.0
rudder_effectiveness = 1.0
rudder_maxangle_scalar = 0.95
pitch_stability = 0.1
roll_stability = 0.1
yaw_stability = 0.1
pitch_gyro_stability = 0.0
roll_gyro_stability = 0.0
yaw_gyro_stability = 0.0
elevator_trim_effectiveness = 1.33
aileron_trim_effectiveness = 1
rudder_trim_effectiveness = 1
hi_alpha_on_roll = 0
hi_alpha_on_yaw = 0
p_factor_on_yaw = 1
torque_on_roll = 1
gyro_precession_on_roll = 1
gyro_precession_on_yaw = 1
engine_wash_on_roll = 2 ; Torque effect
rudder_engine_wash_on_roll = 5
wing_engine_wash = 0.2
ground_crosswind_effect_max_speed = -1000
ground_crosswind_effect_zero_speed = -1000
Exactly that. The G1000 version only has two of the lines, but the analogue version has all four.
Why? No good reason that I can think of other than it being one of a hundred tiny things that escaped Asoboâs QA process. I added all four lines to the Black Square Caravan, with different values for the friction when I was testing crosswind landings in that plane. The attributes are applicable to any plane, but would need tuning for each one.
What do you tune it for? I havenât a clue. 
What I did was dig out its maximum demonstrated crosswind as per the POH, and upped those values until it was possible to achieve. Somewhere around those values would be ârightâ.
Good to know. Actually I am interested to tune the Cessna 172 only as you have shown and see what happensâŠ
I have never done changes to this type of files and I donât want to create a mess there., would you please explain me clearly the steps to add and save the 2 lines? thanks
Ctrl+C the two lines, then Ctrl+V them just below this existing two lines. They could probably sit anywhere in [FLIGHT_TUNING] but for clarities sake, keep them with the other two existing lines. Then save the file, the relaunch the sim.
Well. I changed the two settings of ground crosswind first. The result was quite good.
Then I added the 2 new lines : ground_high_speed_steeringwheel_static_friction_scalar = 10 ; 1.0
ground_high_speed_otherwheel_static_friction_scalar = 10 ; 1.0
After the steeering weel changes the C172 became less manageable. I donât know which setting is more realistic .I will try different values to see what happens. Eventually Iâll remove the last 2 lines untill Asobo will decide what to do in this regard.
Thank you very much for your tips.
That doesnât make sense as it should make it easier to steer, especially in a crosswind. Unless those settings work differently on the G1000 172 than they do on the steam 172.
I didnât explain me well. What I meant is :
Point 1) actually ,without the changes on the 4 lines, the c172 is unmanageable.
Point 2) Doing the 2 crosswind changes it is quite good.
Point 3) By adding the other 2 ground steering weel changes itâs more manageable then point 1) but less then point 2) .At least this is my first impression. I did the trials with 15 knts crosswind. I will do new trials on the next days.
Hope itâs more clear now .Cheers
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That makes sense. If you add the two crosswind lines, with â-1000â then the crosswind is always present. If those lines are removed youâll use whatever the sim default is, presumably as it was pre-SU10, where crosswind starts to be felt at ~40kts.
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Do you have the same issue if you follow the OPâs steps to reproduce it?
exact same issue with the SR22
Provide extra information to complete the original description of the issue:
while on the ground, when significant power is added, the plane veers right. It is very difficult to maintain centerline, often times requiring full left rudder. Once airborne, it seems the problem goes away and its a jerky correction that occurs.
On landing, the same happens, veering heavily to the right, almost to spin the aircraft. It may be happening even in the air a few feet from the ground.
I have tried every peripheral fix possible, nothing works. I have only tried this in the SR22.
If relevant, provide additional screenshots/video:
Did you have a right crosswind at the time?
I turned piloting settings from hard to medium and
It worked for me. The take offâs and landings were uncontrollable.
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This workaround sounds good at least as a temporary solution .Iâll give it a try.
However, we should be able to manage take off and landing while on hard settingsâŠstill waiting for the finale fix from Asobo ,maybe on the new 2024 sim.
