Sluggish 747 steering.

[gypsymoth]

I've just got the Project Opensky - Boeing 747-400V4 Virgin Atlantic NC and it steers as if the nose wheel tyres are flat.  The default 747 is a dream by comparison.  I've read all the steering stuff on the Posky site & have even moved the CofG to be over the nose wheel to no effect.  I don't have problems with any other aircraft.  I'd appreciate some help on this one.  Can I change something in the aircraft cfg to help? or.....?
Thanks.

[JBaymore]

Most default aircraft are anything BUT realistic...... so it is likely not a good thing to compare them to anything.

Is it possible that the Posky one is far more realistic?  After all, you have a lot of tons of aircraft that exhibits a LOT of inertia.  On the ground it ain't gonna' turn on a dime, stop on a dime, or start moving quickly.

best,


....................john

[gypsymoth]

Even taking into account that this is simulation, the nose of the posky 747 only deviates by a foot or two to either side.  I've watched plenty of aircraft moving at airports & if they moved like this one they'd be in big trouble.    Posky's web site said their aircraft had the CofG toward the back, so I moved this one to over the nose wheel & it never made a blind bit of difference.   I was hoping I could edit the aircraft cfg to change things....?

[Hagar]

I was hoping I could edit the aircraft cfg to change things....?

Rather than mess around with the CG that will probably affect the flying characteristics I would try tweaking the steering angle in the [contact_points] section. Reduce the angle rather than increase it. I note the Posky version is 80 degrees compared with the default 747 at 70.

[gypsymoth]

Thanks Hagar, I'll try that.  Their facts section suggested moving the CofG forward to get more weight over the nose wheel, so I did.  Didn't work.
I'll try your tip!'

[Hagar]

I had a brief tweaking session without any luck. Definitely something not quite right there somewhere. I note the centre main wheels also steer.

PS. I think that's the answer. Try removing the negative value of the steering angle for points 1 and 2. 15 degrees seems to work.

[gypsymoth]

I've looked at the nose wheel & see that it's not pointing forwards but towards the left wing (cockpit view) & is up to the axle in the runway, so as I don't know what to change I left it.  Don't want to muck things up & make it worse (as if)

[Hagar]

Try this. You can always go back to the original CFG if it doesn't work.

point.0 = 1.000,

[gypsymoth]

Thanks Hagar......I had another look at the posky FAQ & this problem could be due to missing xlm files.  I've deleted this aircraft as it wouldn't work but I'll have another look at it & get back to you.   It might just be also that I have a corrupted download - I remember loosing internet connection yesterday for a second or two but am not sure if I was downloading this 747 at the time.  Phew  :-?

[Hagar]

My tweak might not be perfect but it considerably improved the ground steering. Shame you weren't prepared to at least give it a try.

It might just be also that I have a corrupted download

I doubt that. If your download was corrupt it wouldn't work at all.

PS. You're probably right about a missing file. There's definitely something wrong with the animation on the nosewheels & rudder.

[gypsymoth]

Yes - there was an updae file I didn't know about.  It steers quite well now.  Thanks for your help.

[Hagar]

[quote]Yes - there was an updae file I didn't know about.

[gypsymoth]

Yes.  Odd that the item needs an update to work properly..... :-?
Cheers!

[Ashar]

Update your FDE to version 9.7 Revision D. Seems to rectify many steering issues I had previously noticed with the models.

[gypsymoth]

Thanks Ashar - will do  ;)