I am not qualified to answer this with any first hand inside knowledge. But what I understand is this:
- Yes, I think the dispatcher’s do this for the flights.
- I think so. I think every airline either uses its own systems or a customised off the shelf system on their efbs and they probably have connectivity to their central server and I see no reason why the updated flight plan may not be available. This may vary from airline to airline though. And if any change in flightplan is required due to ATC instructions, I am not entirely sure what happens then. Also final weight and balance figures will come after fuelling and boarding I suppose.
- No, I don’t think so. This can still be fetched via data link comms in the FMC. The way simbrief import is simulated in FMC is quite realistic I think. For comparision I believe the fenix / FBW are quite accurate in that regard and you can check how it is.