A decade ago Bill Premerlani made an ingenious recognition that a change of attitude relative to a change of groundspeed reveals the hidden airspeed state.
Very briefly, here is the driving equation. (I refer the reader to the below documents for a full explanation of the variables).
The DIYDrones link where B. Premerlani announces his work:...
Could somebody explain a little bit why they need 2 separate GPS and 2 separate IRS?
Because airliners falling out of the sky or disappearing without a trace is not acceptable from either a political or financial standpoint. Stuff fails and so backups are needed to keep the flight on-track when it does.
Having two systems of each type makes it easier to ...
It looks like the "weather product age" for NEXRAD weather data, i.e. how old the current data you're seeing is (see Pilot's Guide, p.13). The number is contextual, based on the weather information type:
The age of the displayed weather product—or the effective time of
Winds Aloft predictions—is shown in the upper right corner of the
display. For ...
There are two ILS approaches for runway 16. Both of them had amendments on 13 Aug 20. Therefore, the IAP charts that were in the database are no longer valid. They expired. It would be interesting to know the effective date of your last Garmin update. That could affect what approaches you are able to see.
I am unable to pull up the former IAP charts at this ...
Static Analysis is usually used in the SDP and SVP as a means of enforcing coding standards and conventions, as well as part of the effort to ensure that the code is IEEE 754/C99 (or whatever you stated) compliant. This is usually a means to cut down on review findings, increase code quality, and ease verification by inspection.