On Tue, Nov 30, 2010 at 7:54 PM, Heiko Schulz wrote:

> I had a look into, even ported the related subsystems over to the 733, but no 
> success.
>
> Scott (working on the A380) noticed the same with the wiki-tutorial and the 
> GPWS. Interesting to know and maybe a hint: A380 and 733 are both JSBsim.

Right, that is related to the problem. Depending on configuration the
GPWS relies on a specific altitude source which is only available for
YASim right now.
You could switch the "<category-8>" parameter to 3 (instead of 2) -
and the GPWS will work with JSBSim and other FDMs. However, please
wait before pushing any ac changes, since this solution isn't good
enough.
The point here is that the GPWS needs a pretty accurate altimeter
source for main-gear-above-ground-level, otherwise the important final
callouts ....20.....10 make no sense. Since there is no such FDM
source (except for YASim) we'll need to hook it to the radio altimeter
instrument - which isn't available as a GPWS default source yet. I'll
be changing and testing something here - and hopefully push something
later this week (also a Wiki update, if required).
Thanks for the report!

And to reiterate: everyone, please report if you notice something
wasn't working. Just add something to the tracker. Yes, reports there
are monitored and bugs fixed (eventually) - even if some issues cannot
be fixed on the same day :).

cheers,
Thorsten

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