Watchdog
Airbus are telling some operators to update the Fuel Prediction page in-flight with GWFK data.
Personally, I add a knot or so per tonne of discrepancy onto Vapp. I believe the VLS+5kt Airbus requirement for the use of ATHR, has a common sense application to be on top of PFD VLS.
Newly modified Airbus aircraft have the problem addressed with FAC's & FMGC X-talking ( I think ). So the problem is really a problem- but many a Airbus folk are still happy to fly around, with ATHR ON, at VLS, with your tail just a bit closer to the ground.
