CoolP wrote on Nov 19^th, 2011 at 3:44pm:

Well, Quote: I can see that the 787 was made to be 20% more efficient so that airlines will spend less money on fuel. 20%, compared to what? And, another one. Real value or advertising one?

The Boeing 787, which fulfilled the Yellowstone Project's Y2 spot, was to be a direct replacement to the Boeing 767. Yes, the 767; the Dreamliner is meant to be a replacment for the 767-300ER and 767-400ER (the -9 variant). It is 20% more effecient, can fly farther, carry more people, so airlines can serve destinations that would otherwise seem uneconomical.