Petr,
I hate to tell you this, but that feature has not yet been implemented
completely or tested. I started that one a long time ago, but there were
aspects of it that I did not have time to explore. I still believe it will
be possible to implement, but it will have to wait until after 1.0 is
release (at least).
Also, I'm not sure that the capability as designed is what you are looking
for. It was initially conceived as a way to have a multi-component vehicle
(a staged rocket, for instance, or an aircraft and mounted missiles).
So, it sounds like you want to model multiple aircraft, but only one JSBSim
instance? I don't know for sure how to solve your specific problem, but I
wonder if JSBSim.cpp could be modified to start up several instances of
FGFDMExec and manage those? Would that meet your requirement?
Jon
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