Very courageous and skilled pilots. The shots of the pilot wrestling with the controls is revealing.
The old company, Bombardier Aerospace, makes these. They don’t ‘motor around” to fill the tanks, they touch down at approach speed, open the fill scoops, add lots of power, and the tanks fill in seconds. There’s one scene in the film where you can see the two tank level gauges rapidly go up. The other neat thing is watching the magnitude of the flight control inputs, especially aileron, as they are maneuvering down low, sometimes the pilot is literally going stop to stop. Real flying!