Hi. When on the taxiway, a number of my add-on aircraft have a very marked tendency to continue turning, for up to two or three seconds after I stop twisting the joystick. That results in my swerving around the taxiways like a drunkard for the first minute or so until I re-learn how much to compensate for this on that particular plane.Is there any entry in the aircraft.cfg that would stop this from happening? (The aircraft skating around, I mean, not me looking like a drunkard .... though that would be helpful too).Martin

Martin, taking a guess here.. try slowing down. And don't drink before or during driving. But, if you do decide to drink before or while driving, expect the worst. :)

I have two suggestions:1: Buy rudder pedals. Twist action joystick won't do it, nowhere near responsive enough.2: Turn the rudder sensitivity UP in FS. Yes, up, because the sensitivity setting in FS is actually not sensitivity, it's `time`. Speed up the rudder sensitivity and the time taken for the control surface to respond will actually reduce. Should reduce the staggering, IF your hjoystick is good enough. Otherwise I'd switch to auto-rudder and control the steering by banking the stick.Hope this helpsAllcott

Thanks for the replies, but this is not dependent upon taxi speed - and 80% of the planes in my little (?!) collection handle fine. I don't think it's a global FS thing..M

In each aircraft cfg file, there's an entry for yaw MOI (Moment of Inertia). Try reducing the value by 50 percent on one of the aircraft that gives the most challenge, and see if that helps. Just be advised that setting it too low can cause the aircraft to get jumpy as it approaches its max speed. However, in my experience it is usually high enough you have some leeway in adjusting it. It does change flight behavior as well as ground behavior, so you'll have to adjust it to a value you can live with and some compromise may be needed there.-John

Hi. I've tried this now, but changing the value, even more than halving it, doesn't seem to help I'm afraid.M

Can you give an example of the aircraft type and yaw MOI value? It may be too high to begin with.-John

The plane I am using as an example (which behaves almost as if it is in a skating rink!) is an Olympic Airways 737-300 by FFX/SGA (using b737_300.mdl).The aircraft.cfg shows:[WEIGHT_AND_BALANCE]reference_datum_position= 0.000, 0.000, 0.000empty_weight_CG_position= 0.000, 0.000, 0.000max_number_of_stations=50station_load.0=0.000000,0.000000,0.000000,0.000000empty_weight= 89445.000empty_weight_roll_MOI= 1854568.000empty_weight_pitch_MOI= 1794268.000empty_weight_yaw_MOI= 2209567.000empty_weight_coupled_MOI= 1300.000max_gross_weight= 125021.999CG_forward_limit= 0.000CG_aft_limit= 1.000I halved the value of empty_weight_yaw_MOI, and then some. Thanks again, M.

Are you using differential braking in combination with your control inputs?-John

I can manage twist stick steering on a 737.It took me a while (It gets longer to have pennies drop!) to realise that I had to predict to some extent next turn, also predict turn out.Anything above 20 MPH gets tricky.

No, no differential braking John.As I say, the setting must be somewhere within individual planes, because the majority respond normally. I can certainly live with the 'problem', but I just wondered if there was a tweak somewhere..M.. :-)

Hi,The easiest thing to do is to edit the contact points (in the cfg file) for the main gear (lines 2 and 3) back just a bit (more negative). The details for each line are in the default 737's cfg file. Make the numbers that describe the longitudinal position of the main gear a bit more negative (i.e. subtract 0.5 from them for a start). You can subtract about 2.0 from them before things start to look odd.This should make ground handling more responsive.Hope this helps,--Tom GibsonCal Classic Propliner Page: http://www.calclassic.comFreeflight Design Shop: http://www.freeflightdesign.comDrop by! ___x_x_(")_x_x___

Oops, sorry Tom, I forgot to say in the post that I've tried that: didn't mean to waste your time!!It's true that if the front wheels in particular are a little too high off the ground, there is not enough traction when turning and planes skate about a bit - but in this plane the rubber is well and truly down biting the tarmac, so this didn't help in this case.Martin :-)

I'd say John's MOI suggestion is the answer, just be silly with the setting!Like change that figure above of empty_weight_yaw_MOI= 2209567.000toempty_weight_yaw_MOI= 220956.000i.e. 10% instead of 50% of the original. If that has no effect, do it again. Once you're happy with the taxiing, take it for a circuit to see just how messed up if now flies...........it may be a surprise :-)http://www.dreamfleet2000.com/gfx/images/F...BANNER_PAUL.jpg

I don't think there is much you can do about this. The way aircraft handle while on the ground in FS has always been unrealistic. Rudder pedals help but it always feels to me like I'm taxiing the aircraft on an icy surface because the nose wheel doesn't seem to have enough traction when the aircraft is moving over 5 kts.Matt