Originally Posted by
fedup flyer
ETOPs would not have come into play with a 4 engine aircraft.
I had a nice long summary typed out but my browser crashed before I could hit submit. In short, most US-Asia flight dont much further North than ANC and your only over water for about 3 hours at the worst part. Depending on the routing you might carry more gas.
Yes, but the ETOPs feature of Great Circle Mapper is useful for seeing which points on a route are the farthest from a suitable diversion airport which is relevant to the discussion.