Originally Posted by Rad Alt Alive
Using Airbus FBW procedures as an example,...
Originally Posted by Rad Alt Alive
There is no mention anywhere, in any of our manuals, about accessing the GPS data to determine GS. There is no mention about asking ATC what our GS is. No mention of GS, full stop!
Originally Posted by Rad Alt Alive
I would instead encourage that they just follow the specific manufacturer’s procedures.
Interestingly, today I was reading the report into an
A320 Pitot Blockage event, which included a stall warning on final approach. Page 64 and on (a copy of the Airbus FCOM Abnormal procedure for UAS) references using GPS altitude and speed:
"GPS Altitude...Display on MCDU"
"Refer to GPS Altitude..." to the extent that it can be used to maintain level flight.
"Crosscheck all speed indications..."
"Alternate sources may be used to evaluate the data (from the reliable ADR):
-GPS altitude
-GPS and IRS ground speeds, taking into account altitude and wind effects".
Full stop indeed.