Aviation 's future must be efficient , greener and easier as air travel grows . Just 1 % greater fuel efficiency means millions in savings for airlines . In the concept cabin , seats will use body heat to power aircraft systems such as holographic pop-up pods , while a futuristic cabin membrane can become transparent to give passengers open panoramic views . Aircraft with roof - top windows are part of the Airbus family .
Aviation 's future must be efficient , greener and easier as air travel grows . Just 1 % greater fuel efficiency means millions in savings for airlines . Aircraft with roof - top windows are part of the Airbus family .