re: [Flightgear-devel] [BUG] JSBSim: sudden plane crashes
Melchior FRANZ writes: 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. Yes, I can reproduce this as well. Of course, you shouldn't push the stick all the way forward like that during normal flight, but the program still shouldn't crash I wonder if this still happens with the engine turned off. All the best, David -- David Megginson [EMAIL PROTECTED] ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] [BUG] JSBSim: sudden plane crashes
This is very likely the propeller for the C310 causing problems. My computer should be repaired by the middle of this coming week, so I'll once again be able to test things out. :-) I may be able to build a script that reproduces it, though, in which case I may get to it sooner. Jon - Original Message - From: David Megginson [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, March 02, 2002 3:34 PM Subject: re: [Flightgear-devel] [BUG] JSBSim: sudden plane crashes Melchior FRANZ writes: 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. Yes, I can reproduce this as well. Of course, you shouldn't push the stick all the way forward like that during normal flight, but the program still shouldn't crash I wonder if this still happens with the engine turned off. All the best, David -- David Megginson [EMAIL PROTECTED] ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
re: [Flightgear-devel] [BUG] JSBSim: sudden plane crashes
Melchior FRANZ writes: 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. I believe that these are lingering problems with the propeller models. All the best, David -- David Megginson [EMAIL PROTECTED] ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
re: [Flightgear-devel] [BUG] JSBSim: sudden plane crashes
Melchior FRANZ writes: 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. I believe that these are lingering problems with the propeller models. Is this still present with the newer JSBSim code/files? Strange. It's hard to picture why, when everything has been at equilibrium for a while, why the propeller should suddenly spin out of control. Jon ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
re: [Flightgear-devel] [BUG] JSBSim: sudden plane crashes
[EMAIL PROTECTED] said: I believe that these are lingering problems with the propeller models. Is this still present with the newer JSBSim code/files? Strange. It's hard to picture why, when everything has been at equilibrium for a while, why the propeller should suddenly spin out of control. Jon I think it's usually after some sort of event...haven't seen this in normal flight myself. When seeing it mostly I just wrote it off to the model being unusually difficult to get out of a stall or spin, but pushing the nose down suddenly does seem to break it here as well. ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
