I saw this post on another forum and found it quite interesting, so I thought I'd post a direct link to it.......... I only hope it doesn't break any rules as no infringement was meant by it and I apologise in advance.

http://forum.avsim.net/topic/392772-inherent-flaw-of-fsx-to-give-too-much-ground-friction/

Hi!

Many thanks for the article.  I would go to the Avsim link but their pages take so long to load on my system these days I just gave up!

Do they mean like for the wheels rolling on the ground you need too much power?  I do need a bit of power to get the default A321 rolling along but I never noticed it much better or worse than Fs9 or anything.

Sorry if that's not what they mean.  The only other friction aviation term is that throttle friction I saw in the Cessna 172 throttle and stuff.

Many thanks!

with all do respect


why don't we bring our own original ideas and concepts and thoughts about FSX  why don't we start them here and not imported from other websites?  ;)

Alex

alrot wrote on Dec 5^th, 2012 at 1:27pm:

with all do respect why don't we bring our own original ideas and concepts and thoughts about FSX  why don't we start them here and not imported from other websites?  ;) Alex

Someone else might have good ideas.
Why rule them out ;)

Basically, it's about the resistance of a given aircraft and how that aircraft handles on the ground.  They are saying that you need more power in fsx than would be required in the real world, to a) start to taxi and b) maintain that taxi.

They are also saying that the handling of a given aircraft in differing weather is also not correct, ie rain, snow and ice.

A patch has been made and there are still testing it, but you can download it for yourself to try it, and I must say that it does seem to make a difference for the better.

Again, before you try it, back up the original file first.

alrot wrote on Dec 5^th, 2012 at 1:27pm:

with all do respect why don't we bring our own original ideas and concepts and thoughts about FSX  why don't we start them here and not imported from other websites?  ;) Alex

Discussion is good though...right. Sharing new found information is a benefit to everyone in the flight sim community, regardless of which forum one prefers to hang out in.

I have to say the ground resistance on ALL sims can be very off. It is really noticeable when a wheel is turned out of alignment with direction of motion. Planes in sims tend to not want to follow wheels.

Have you tried adjusting the .air file ? If not you might look at section 1101 Primary Aerodynamics, close to the top under "MISC" the last entry is "Braking Strength-max."
In FSX the default for the C-172 is 0, (For FS9 is is 22000), anyway according to the notes for Aircraft Airfile Mananger  this entry is supposed to be "Rolling Coefficient of friction".
For FSX they recommend a value between 6.5 and 15.9995

I have not tried this so have no idea if it works or not.