Originally Posted by
hannibal lecter
Yes you can do it, but the position depicted can be off by quite some feet depending on the GPS signal quality received on the EFB. The Airbus' SOP for this is identify runway and intersection on the lining up checklist. Inserting a TO shift at the PERF page also helps to raise awareness, and yes before somebody notes, I know that with GPS HIGH inserting a TO shift is not necessary, I am just pointing out that seeing a number there before lining up makes you remember that you are doing an intersecting departure and the numbers are for that case. Compare this number with the runway left behind and reassure yourselves the numbers look right.
I've seen many people tweaking the EFB to make the remaining distance to something they like more. I am not very in to this procedure but I can understand their fears.
Depends on the system, ours get the FMCG Position via an in-cockpit WiFi link. Again, it is not supposed to be the primary means og navigation, but helps a lot, especially on unfamiliar airports and with automatic chart switching and zooming.