[Flightgear-devel] JSBSim and airports

[Cameron M. <li...@to...>]

This bug has been mentioned a few times in passing, but I wanted to
bring it to the forefront.

Whenever I start fgfs with the jsb fdm and specify an airport-id, I
fall into a black void every time.  If I had been paying attention, I
would have taken note of the day it started happening so I could
backtrack in CVS to find where it started.  But...I didn't.  My guess is
that this has been happening for about a month now.  [insert grain of
salt]

All of my tests have been by specifying an airport-id *other than* the
default.  It just dawned on my that I haven't tried to specify KSFO to
see what happens -- I will do that when I get home.

It *appears* that I'm falling through the ground and end up inside the
earth, but if I specify an altitude (say 1000), the same thing happens
while I'm at that altitude.  So, my "I'm inside the earth" idea sorta
falls apart at that point.  Also, if I set an altitude and hit 'v'
(change view) as soon as I start, I see the plane pitch forward (nose
down) until it's almost vertical (90=B0), then everything turns black.

Other FDMs don't exhibit this problem, just JSBSim.  I've attached two
JSBSim output files for different airports.  These were done a couple
days ago, so I don't remember if I set an altitude or not.  :-(  I can
send some later that I know for sure what options were used, but you can
look at the attached ones for the time being.
--=20
Cameron Moore