OK....I thought it was the 4 engine job. I didn’t bother to look it up, but I alway thought that’s what they’d be flying on the trans-atlanic routes.
I think you’re right. They only use the four engine jobs on o/s flights of long duration. I believe only Boeing 767/777 are ok’d for o/s flights of over three hours. Boeing had what’s called ETOPS (we like to say: Engine Turns Or Passengers Swim) but it means: ETOPS, Extended Operations, and En Route Alternate Airports - says that it can go 180 minutes without engines to the nearest airport three hours away.