GF:
Have you heard of 3 and 4 engined planes? Presumably, they will not fly far on a single engine.
Well, three engine birds will if managed properly. I flew two different types for much of my career; 727 and 1011.
The 1011 was an international bird, it had to make with to a landing at an airport after loss of two engines at the ETP. I think the level-off altitude would have been fairly low although I never tried it.
Further, every simulator session had an outboard engine fail just above V1 at MGTOW, then as soon as cleaned up and starting en route climb the center engine would always fail. Flew around then dumping fuel to max landing weight followed by a single-engine ILS to landing.