I have re-dreamed the "big" Ecoliner concept of Airbus and of Boeing as a flying wing concept... A flying wing concept is always better than a conventional airframe because of its greater uplift... For a full double-deck aircraft you need all uplift of the world...
When you have got plenty of uplift the engines can be smaller than the originally planned giant engines... I imagined the wings of my Ecoliner concept as "flexible wings" which can house 3 types of turbofan jet engines according to the choice of the customers...
The noise within the passenger cabin of flying wing concepts might be a problem in case of greater jet engines that is why I found out a noise reduction for all available types of modern turbofan jet engines for the "big" Airbus and Boeing Ecoliner...
I have been mostly inspired by the Antonov AN-124 Ruslan (American pilots call it "Condor" - I love this name) which must have the largest possible sizes of a flying wing concept... An Antonov AN-124 is 68 meters long and it has got a wingspan of 73 meters... I guess you need a wider wingspan than the length of the fuselage so that you reach the flying wing effect - however no aircraft can have a wider wingspan than 73 meters if you want to find any place for the aircraft at airports... So the fuselage can be maximally 68 meters long...
A big Ecoliner of Airbus or of Boeing with its fuselage of a length of 68 meters (Boeing 777-8X: 69 meters) could seat approx. seat 600 - 700 passengers in a 3-class-configuration on 2 full decks... With engines that enable only lower cruising speeds the Ecoliner could connect airports which are situated relatively closely to each other, but with engines that enable very high cruising speeds the Ecoliner could connect the most distant airport-pairs, too all over the world in a very comfortable way...
Best wishes, ACME and Team
