Sorry not being more positive, but not solved. Maybe slightly improved.
Tests: LSGG runway 23 (same as previously).
1- Wind 0 kt 150°, then Autostart:
1st test: tossed, jostled, then sticked on the nose. FG no longer responds to aircraft commands.
2nd test: totally crashed, red screen.
2- Engine at idle, Wind 3 kt to and from 50° <---> 230° (3kt nose <---> tail, several times)
Between a bit tossed, small jump, jump to the side, with the sim still working....
....and strong toss, projection, total crash.
A bit better than previously (fgfs does not crash every time) but still something more or less violent.
3- Everything stopped, wind 3 kt 50° (tailwind) ==> J = -0.42
Autostart ==> J = -0.042 (brake parking ON)
Brake parking OFF, slow rolling ==> J increases from -0.042 to J = 0.36, small jolt, no crash: would be almost good (twice).
I can also get it at KSFO:
- either by autostarting the engine with strictly 0 kt wind (0 kt Alt 0 and 500 ft in "Weather config"),
- or slow-rolling 360°-turns with 150° 3 kt wind.
Between jolts (bumps) and FG crash, but not as violent in average, and not as reproducible.
Thank you, and sorry not being able to help more.
[EDIT, Addon]
Can it be help?
- Code: Select all
P51D
JSBSim convergence, usually, when it works
wind default 150° 3kt
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LSGG runway 23
Sorry, qdot doesn't appear to be trimmable
Trim Results:
Altitude AGL: 2.8 wdot: -2.67e+02 Tolerance: 1e-03 Failed
Pitch Angle: -0.23 qdot: 1.09e+01 Tolerance: 1e-04 Failed
Roll Angle: 8.2 pdot: -1.14e-01 Tolerance: 1e-04 Failed
Trim Statistics:
Total Iterations: 7
Sub-iterations:
wdot: 26 average: 3.7143 successful: 1 stability: 2.7778
qdot: 0 average: 0 successful: 0 stability: 2
pdot: 89 average: 12.714 successful: 7 stability: 2.3232
Run Count: 380
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KSFO runway 28R
Trim Results:
Altitude AGL: 5.1 wdot: 3.21e+01 Tolerance: 1e-03 Failed
Pitch Angle: 0.0062 qdot: 1.00e-04 Tolerance: 1e-04 Failed
Roll Angle: 0.19 pdot: 2.85e-04 Tolerance: 1e-04 Failed
Trim Statistics:
Total Iterations: 61
Sub-iterations:
wdot: 135 average: 2.2131 successful: 0 stability: 2
qdot: 124 average: 2.0328 successful: 0 stability: 2
pdot: 205 average: 3.3607 successful: 61 stability: 2.3796
Run Count: 2288
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