This has already been reported, but there's obviously no solution yet:
The JSB-c310 crashes quite frequently during 'normal' flight. Sometimes
it starts to accelerate to supersonic speeds or to spin around the
transversal axis for one second, after which it crashes. fgfs just
reports

  182: GEAR_CONTACT 1
  183: Crash Detected
  184: GEAR_CONTACT 1
  185: Crash Detected
  ...
  Tile not found (Ok if initializing)
  Attempting to schedule tiles for bogus latitude and
  longitude.  This is a FATAL error.  Exiting!


or

  WARNING: slScheduler: Too many pending callback events!
  WARNING: slScheduler: Too many pending callback events!
  WARNING: slScheduler: Too many pending callback events!
  ...
  [endless loop]


This can reliably be reproduced as follows: Start the c310
(fgfs --aircraft=c310) and climb at, let's say, 1000 ft, then
abruptly push the stick forward (pitch down; Elevator Cmd = 1).
JSBout310.csv shows extreme and extremely alternating values for
forces and acceleration. For example:


  Xforce                  Yforce                  Zforce

  -3472.76                349.436                 -4530.6
  -9892.32                401.213                 -6030.32
  -18177.5                484.35                  -752.287
  -20539.2                599.711                 24317.8
  -12517.7                62.5994                 -13734
  -12324                  -74.794                 10711.1
  5981.04                 187.233                 21363.6
  -58235.5                1486.34                 -736.668
  -142814                 937.924                 -43663.2
  -1.07812e+06            857.054                 -576838


The same effect can (less reliably) be achieved with the c182, but
not with pitch down, but with rolling 180 degrees and flying upside-down
(like the c310, BTW). Unfortunately, these crashes happen sometimes
in normal flight, so this should IMHO be fixed for 0.7.9. Please tell
me, if I can help, but don't expect too much. The FDM isn't exactly
my domain.  ;-)

m.


_______________________________________________
Flightgear-devel mailing list
[EMAIL PROTECTED]
http://mail.flightgear.org/mailman/listinfo/flightgear-devel

Reply via email to