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Pitch & trim problems

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Hello all,it's been 2 days now that I seem to have severe pitch/trim problems.I have used the load editor for FS2002 since I use the PMDG with FS2002 and cleared evrything up..saving the set-up as an empty aircraft.What happens is that whenever I load the plane it has the nosewheel slightly sunk in the ground. The trim on the pedestal is set to 5 for takeoff.I can taxi normally and start the take-off roll but at VR I have to pull all the way back on my yoke and it lifts off very late...using up almost 10.000 feet of runway...then when I engage the autopilot it keeps going up and down badly...I checked the trim and it's way out..all the way up.. I tried trimming nose down but then it goes back up...it's been happening only since the last couple of days...I've been using it since July..so I know how to operate it basically..but I wonder what could have started going wrong.At first I thought it was my fault playing with trim with A/P on...then it did it againg and realised it might be because I loaded cargo/baggage (keeping it balanced though), now I cleared and re-saved with load-editor but get the same result! :-((I even re-calibrated my CH Yoke. Wonder if a reinstall might help...will have to re-install the liveries too, right?Anyway if anybody could help me I would greatly appreciate it.Best regards,Bjorn

Hi Bjorn,Your station_loads in your aircraft.cfg file are corrupt. Check tha you have one station load called station_load.0 and that it has these values. The last three positions are the most important ones, X-, Y- and Z-coordinates of the load. The first is the actual weight. Here it is empty: -600 -> station_load.0=0.0, -45.450, 0.000, 1.050-700 -> station_load.0=0.0, -48.350, 0.000, 1.050Hope it helps,

Mats Johansson
PMDG Flight Test Dept
Boeing777_Banner_BetaTeam.jpg

| Asus Z270-A | Intel i5-7600K @ 4.8 GHz OC/H2O | nVidia Geforce GTX 1070 8GB OC/O2|

Hi Bjorn,I suddenly developed this problem too!I'm no expert with the aircraft.cfg file, but it looked to me that the load editor was implementing the load using a single line with a longitudinal datum value too far foward near the nose. I edited this line to have the same datum position as the empty aircraft centre of gravity and then all was OK.My selected load in the load editor created this line in my aircraft.cfg file:station_load.0=22821.000, 0.000, 0.000, 0.000Which I changed to read:station_load.0=22821.000, -48.170, 0.000, 0.000The -48.17 is the C of G position for the empty -700 model, use -44.320 for the -600 model.I wonder why the load editor has started to do strange things?(OK, Mats just beat me to it... I'll add those Z coordinates in too)

NeilCan you reproduce that within the Load Manager?I would say there must be something else to blame as the Load Manager only writes the weight without checking the coordinates. ;-) Whatever coordinates are there will be there even after running the Load Manager.In my case it was our VA's Flight Dispatcher's W&B section who messed things up at first. Maybe FS can be blamed? Hope it helps,

Mats Johansson
PMDG Flight Test Dept
Boeing777_Banner_BetaTeam.jpg

| Asus Z270-A | Intel i5-7600K @ 4.8 GHz OC/H2O | nVidia Geforce GTX 1070 8GB OC/O2|

Thank you very very much to both Mats and Neil!Indeed that solved it. The -700 was reading all 0.000 but the -600 was fine.Ijust loaded a full pax load on the -700 and it is still ok...so I wonder what happened in the last 2 days that changed those values?Best regards,Bjorn

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