[getmeouttaPalmBeachCounty_FL]

So if you lose electrical power, you’re sort of sol?

[Jet Jaguar]

So if you lose electrical power, you’re sort of sol?

Not always.

I have no experience with heavy jets. I work fighters.

If you lose electrical power in a single engine fighter, you have backup electrical power from an Emergency Power Unit. When that fails, you still have back up flight control batteries. And you have a fourth source of power, the aircraft battery.

Heavy aircraft have these backups, but also have 2 or 3 or 4 turbofans to generate electricity. They also have the room to carry an APU or Alternate Power Unit to generate electricity to power the flight control surfaces.

Many back ups.

[ConservativeMind]

Specific to power, I would give the nod to Jet Jaguar’s explanation. However, specific to a computer or fiber optic problem on that Airbus, you’re screwed.

[Prophet in the wilderness]

Jet Planes have a thing called a RAT ....
It's a turbine that pops out when all electric power is lost, but, it is only good at higher altitudes when the pilot can point the nose of the plane down and gain airspeed.... long enough to regain some control of a plane and give them time to find a airport.