Originally Posted by railroadtycoon
I'm no aviation expert, but if I recall one engine on the 777 can fully power and fly a 747, If I remember they actually tested this and had a 747 flying with one 777 engine.
Oh yeah. The engines on the T7s are insanely powerful, especially the newer General Electric GE90-110B1 (110,000 lbf thrust), and insanely huge - the diameter of the engine is bigger than the cabin of a 737.
Per Wikipedia (
http://en.wikipedia.org/wiki/ETOPS):
In the North Pacific, ETOPS-180 (180 minutes) is satisfied by the availability of airports in the Aleutians Islands and Midway Atoll. As the Aleutians airports are prone to adverse weather conditions and volcanic activities, Boeing subsidised construction of the Midway Atoll diversion airport to enable the 777 to fly the North Pacific routes. After a petition from Boeing and United Airlines, in 2001, the FAA allowed a 15% extension to the ETOPS-180 rules bringing them to ETOPS-207. The approval is granted only to the 777. This approval is granted only if Northern Pacific route diversion airports are closed.