To reduce stress, the two had originally intended to fly the plane in three-hour shifts, but flight handling characteristics while the plane was heavy prevented routine changeovers, and they became very fatigued.
For at reducere stress havde de to oprindeligt tænkt sig at flyve flyet i tre-timers skift, men flyveegenskaberne forhindrede rutinemæssige skift, og de blev meget udmattede.