Had me question if simply 2 reversers were sufficent in design, 1 and 4 are quite high. FOD was my first thought, how does this effect landing distance if 2 or 3 are inop on such a large/heavy aircraft. I wonder if the aircraft was able to control with a 1 or 4 on MEL (being enabled) given the thrust of the engines? Thanks for the answers, just seemed a bit odd.
Grounded