Hi,

I finally had time to update the Wiki with detailed information on the
EGPWS configuration. I think the module has been there for quite a
while - but the manual was lacking a bit of detail. Also, I fixed a
few stability issues and added two more configuration options.

Could s.o. please have a look at the patch and push it to GIT? Just a
couple of one-liners... ;-)
Also includes a pending patch for issue #139 (
http://code.google.com/p/flightgear-bugs/issues/detail?id=139 ) which
could be closed.

Here's what the patch does:
* Fix issue #139 (sim deadlock in MK_VIII::Mode5Handler::get_soft_bias).
* Fix more unitialized variables sometimes causing warnings not to work.
* Fix some warnings only working on a single approach (missing reset).
* Self-test can now be triggered more than once (missing reset).
* Implement configuration options for attitude and altitude input
selection (providing better precision and easier configuration for
some planes).

And here's the updated wiki page:
http://wiki.flightgear.org/index.php/Ground_proximity_warning_system

It's based on information I grabbed from the original developer
documents, from the sources and also from the original manufacturer
manuals. Quite amazing, the module doesn't just implement an EGPWS -
it actually emulates almost all the details of the actual hardware
module: inputs, outputs, even the configuration encoding. So, when
configuring a plane, you could always use manuals of the original
hardware. The developer certainly loved the details. But many
FlightGear planes just use the configuration default - which matches a
turboprop aircraft. This doesn't produce sensible warnings on a 777 or
an A380 though... ;-) Hopefully the more detailed Wiki page helps to
adapt the module for specific planes - even for those who don't like
digging in real-world manuals. But it's still complex, since there's
so many options.
I haven't tested all the configuration options, therefore the wiki may
not be perfectly accurate. If you find something not to be working as
expected, just update the wiki. Or let me know - I'll check the
module/wiki again.

But before you start configuring: for all the callouts to work
reliably, you'll need a fairly recent simgear (GIT), plus the attached
patch for flightgear/src/Instrumentation.

Have fun! Bitchin' Bob is visiting your cockpit soon! :-)

Thorsten

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