Originally Posted by
Locked door
NB, a hairy old TRI once pointed out to me that a 747 on three engines has more redundancy than any fully serviceable twin engine jet on two engines.
So if you believe that a 747 operating on three has more redundancy than a ETOPS twin operating on two; then I assume you will be more comfortable if one of the 747's three goes south than if one of the twin's two goes south? I don't think so. That 747 on two is going to struggle to remain in the air, while the twin on one can go indefinitely (or up to 330 minutes depending on certification).