More A320 questions guys:
1) Are all new Airbuses fitted with Centre Tanks, or is it just the A321/30/40/80?
2) Do you have to have the fuel pumps off for re-fuelling? Why?
3) If there's ever an engine failure, why can't you turn on the APU to power the pneumatics/AC Power? Surely there'd be more power available to the remaining engine?
4) In an emergency (e.g. engine failure after takeoff), at which point do you call MAYDAY and report your intentions to ATC? I know you have to do nothing and keep climbing below 400ft AGL, but after that, when do you carry out the necessary ECAM actions? Do you have to report it straight away and chat away to ATC whilst the engine BURNS
? Or do you carry the ECAM actions down to shutting the engine down and discharging the extinguishers then tell ATC?