From: Andy Ross <[EMAIL PROTECTED]>

> That is a "to" vector, by definition.  Really, the
> "from" convention applies to a 1-dimensional compass direction; I'm
> not aware of anyone else trying to apply it to a 3D vector environment.

Ooh! Yeah, that is a good point about the 3D part of it. It's been a while
since I worked on the wind stuff. So, can anyone specify the following:

What are/is the way[s] a user can specify wind on the FGFS command line? All
I can see is this:

--wind=DIR@SPEED: specify wind coming from DIR (degrees) at SPEED (knots)

Was there a properties way to do it that is opposite to the above? Perhaps
we are given too much power! ;-)

Most/all users will only specify a from direction and speed. It would
normally (IMHO) be up to the scenery model (giving us the terrain info) and
the weather or FDM model to give us the up/down component, would it not?
Perhaps the FGInterface object is not preparing the wind components properly
for the FDM? I still think our (JSBSim) approach to winds is the most
intuitive, but I am open to debate.

Tony? Thoughts?

Jon




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