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Guest Flusifan

A perfect flight - right up until...

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Hi,I had the same problem with my first flight from CYVR to KGEG with the upgrade, although the steering wasn't wild. After landing and slowing down, the nose wriggled back-and-forth a few degrees. I was not using my yoke and rudder pedals, just the keyboard.For some reason I thought it was because (I believe) I still had the autopilot on and the plane was still trying to track the ILS down the runway centerline. I think when I turned off the autopilot I was able to steer just fine.Jim Mendes

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Agreed Jim, sounds very much like the autopilot was still on and attempting to keep the plane on the centerline which results in wild gear stearing as the plane lands and overruns the ILS.Make sure you hit that big "Autopilot Disconnect Bar", not just turn off your autothrottle.Ray

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First test hop with SU2, a simple KJFK-KMHT. Perfect, right up until touchdown. Vref of 130, Flaps 30. Nice flare, and the mains hit just beyond the numbers. Nose started to drop, and just maybe I was a little eager with the reverse thrust. Nose wheel came down and seemed to bounce. Shortly thereafter (slowing through about 70kts) the steering went wild, almost like a commanded full-right nosewheel. Moving the rudder left caused a full-left at about 90% left rudder control deflection. Aanything less caused a revert to full right nosewheel deflection. Almost uncontrolable. Came to a stop and cleaned it up (flaps, etc.). Same problem attempting to taxi.First time I have ever seen this behavior. Maybe I blew a nosewheel tire? I did not yet get the time to try and reproduce this, but will this evening. I did check the joystick/rudder calibratiron and all was correct.Best, Jimi

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When should i disconnect the Autopilot? After Touch down ? I want a Autoland!Gruss Michaelwww.flusifan.de

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http://www.fmcguide.com/media/profiles.pdfTake a read through the AUTOLAND section.I can't stress enough how valuable Bill's books are not to mention the billions of useful tips hidden inside. They are not for the tame (ie: do not consider them to be tutorials), but if you want to fly the real thing the real way, it is worth the investment.Ray

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Ok, the short of it:Disable the autopilot as soon as wheels down. There is no mode that will hold it on the runway centerline.Ray

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I understand that Randy, but I suspect that people are thinking because the A/T gets switched off automatically that the A/P has the same feature. It does not, hence the wonderful ground loops the aircraft will perform as it travels down the runway and stay fixed on the ILS which is now behind the plane ;)Ray

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Apologies - forgot to mention. Once stopped on the runway I (belatedly) turned off A and B CMD A/Ps (first thing I though of). No change. Nosewheel still at full right, despite centered rudder pedals. I'll try a simple circuit and bump at KMHT early this evening and report back if (or not) I can repeat the behavior. I'll also repeat the entire flight.The ONLY other change between this and any other 737NG flight I had flown (apart from being SU2 of course) was I set the Cost Index to 500 and not my usual 999. I did notice the A/P control seems a little "sluggish" at times and noticed the airspeed being barely exceeded a few times, but I can't see how the cost index change could affect the landing. Just FYI.Thanks, Jimi

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Just to close the loop - could NOT reproduce the observed nosewheel steer problem over 3 further flights, including a simple KMHT-CON-AS-MHT-KMHT35 loop around the airport, repeating the KJFK-KMHT plan to ILS17 (full ILS) and again to visual 35 (using CWS).I thus conclude it was an isolated FS9 "undiscovered feature".This aircraft is just too addictive. I need sleep...or coffee, but I couldn't get the attendant call button on the overhead to go "pong" :-kewl /Jimi

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