Tim Ward wrote

The hardware isn't cheap, but it's getting cheaper, and the data reduction
post-flight isn't a trivial problem, either, but it's doable.


Tim,
My knowledge is very limited when it comes to the points you made above.
My L Nav produces the data that is now taken manualy in the test flights.
The GN II is hooked up to my LNav making some of the data available.
All this is set up to be down loaded into my PC flight software.
How much effort would it take for some one experienced in writing this type
of software to get
the remaining data out of the LNav into the flight recorder, like
temperature, altitude, airspeed?
Regards
Udo