Jon Berndt wrote:

So,
instead of defining some arbitrary frame, _we_use_an_industry_standard_,
which is the structural frame that the manufacturer defines, when available.
It is always (in my experience) X positive aft, Y positive right, with the
origin being seemingly arbitrary.


I wouldn't go so far as to say this is an industry standard. FG is the first sim I've
seen that uses this coordinate system. The one I've seen the most is X positive forward,
Y positive right and Z positive down. Someone once told me this was named the
Boeing system. On the sim I'm working on now, it's positive Y forward, positive X
to the right and positive Z up. I'll admit that most of the sims I've worked on are
relatively old in FORTRAN and C.


Don't get me wrong, I'm not saying this is a bad system, I'm just not sure I agree it
is an industry standard...


--
Russ

Conway's Law: "The structure of a system tends to mirror the
structure of the group producing it."
     -- Mel Conway Datamation (1968)



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