On 20 Apr 2006, at 21:15, Dave Culp wrote: In JSBSim ME turbine aircraft you can do this by using a separate config file for each engine and giving each engine a different bypass ratio. I haven't tried this yet, but it should work.
It seems a shame to need to customise the purity of the ideal engine config - in the long term, it'd be nice to have a way to specify the age or some other random seed factor for a given engine installation. This would be like the drag value that can be entered into the flight data computers on (real) big jets to account for airframe drag increases with age.
Obviously you could get carried away here, but a single numerical factor for the aero properties (I'll leave the physicists to debate which aspects of the simulation would be affected), and maybe a per-installation value per powerplant seems like it would be sufficient. In the engine sim, you'd use the random seed to tweak some of the parameters in a very limited way, i'd guess - just enough to cause some realistic variation.
Just an idea, H&H James |
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