All a very interesting read on ones take of eng failures in 4 eng planes.
Just off topic a little as it's going round in circles anyway it's obvious to me that the biggest & ugliest flying machine in the air 2day the A380 Dugong has 4 engines for one main reason, they needed x amount of thrust to move such a large mass thru the air & they couldn't get it with just 2 (3 would have meant a totally diff airframe design).
4 engines for the A380 was needed there where no other options not 'cause of 'just in case'
With large engines now producing somewhere around 105000lbs of thrust or so we could almost have a very large SE Airliner carrying hundreds of pax but we don't see anything like that on the drawing board for very obvious reasons.
Safety in numbers
