January 27, 201214 yr Recently I've been flying to smaller airports which have limited taxiways and rely on taxiing on the runway to the end, making a 180 deg turn and lining up for takeoff, or backtracking after landing. I've found the NGX has difficulty in making a 180 deg turn on a standard width runway without putting a wheel on the grass. You can just make it by keeping speed very low and beginning on the extreme edge of the runway. It shouldn't be that much of a problem for a 737, even a 747 can manage it. So I did a little research and found the maximum nosewheel steering angle for all models is 78 degrees. In the aircraft.cfg files the steering limit is set at 60 deg. I increased the value to 78 and found the low speed turning circle to be much more realistic. You still have to take care, but the turning radius feels and looks more realistic.Anyone interested in trying the mod, open the aircraft.cfg file in notepad and search for "contact_points". The next line (beginning "point.0") contains the data for the nosewheel. The eighth number in the row is 60.0, change this to 78.0 and save the file (make sure windows doesn't automatically add a .txt extension to the file name). It's a simple change, but backup the original file in case.before:point.0=1, 26.230, 0.000, -8.191, 1100, 0, 1.125, 60.0, 0.714, 1.31, 0.725, 8.0, 7.5, 0, 245.0, 335.0after:point.0=1, 26.230, 0.000, -8.191, 1100, 0, 1.125, 78.0, 0.714, 1.31, 0.725, 8.0, 7.5, 0, 245.0, 335.0You'll need to repeat this for each NGX version.I had hoped this might improve pushback too, but that doesn't even get close to the original 60 deg maximum nosewheel angle so increasing the limit has no effect. Edited January 27, 201214 yr by kevinh
January 27, 201214 yr It would be pretty strange if PMDG missed such a basic thing.. I'll try it.Just wondering what would happen if you set the limit at 180?
January 27, 201214 yr Author It would be pretty strange if PMDG missed such a basic thing.. I'll try it.Just wondering what would happen if you set the limit at 180?I'm sure they have their reasons for choosing 60 deg, but for low speed manoeuvring it's not ideal.Anything more than 90 deg would be pointless, but you could easily try it and see.
January 27, 201214 yr Kevin,Thank you. 737-600NGX low speed maneuvering is now perfect with 78 settings. Ahmet Sanal "Time you enjoyed wasting, was not wasted"
January 28, 201214 yr Thanks Kevin, I will try it as well.Nikita, if you set it to anything over 90 you will be turning in the oposite direction. Jeff Johnson (RWS)
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