AJ MacLeod wrote:
Yeah, I'm not holding the 172's implementation of a nasal electrical system as
any kind of ideal (actually, I don't like it very much, although I don't
claim to be able to produce anything significantly better).
Really what I'm saying is; as far as I can see, the nasal electrical system in
general has the potential to model pretty much anything you can imagine _if_
you have the programming skills / electrical knowledge to implement it.
Sadly the electrical engineering I did at university was one of my most
despised subjects and I don't seem to have retained very much of it...
I freely admit I'm still very much at the "getting to grips" stage with the
nasal system myself :-)
I should point out that unlike you, I have no electrical engineering
background at all. I know you plug the cord into the hole in the wall
and hit the power button. If that doesn't work you buy a new gizmo, or
if all your gizmos are inop, call the power company.
And I was the person who wrote the original xml based electrical system
and admittedly it was *seriously* flawed.
I hacked and hacked on it for a couple days trying to make it do enough
to model things like battery charge/discharge and drive voltmeter and
ammeter gauges. I even wanted to do load sharing between two
alternators. That was the final straw. I finally gave up and pronouced
the xml system hopelessly ill conceived and poorly implimented. It's
still there for backwards compatibility so we don't break things that
current do work (by some stroke of luck.) But I don't recommend that
new aircraft use it.
The nasal system is much more of a do-it-yourself thing. But you can
make it work. You can make it handle the important complexities of a
real electrical system (especially in more advanced aircraft.) You need
to be able to write down your logic in script form, but that's a skill
that people can learn, and hopefully as we move forward we'll have more
and more examples for people to work from.
Regards,
Curt.
--
Curtis Olson http://www.flightgear.org/~curt
HumanFIRST Program http://www.humanfirst.umn.edu/
FlightGear Project http://www.flightgear.org
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