The interior space of intercontinental flights has became a dilemma for passengers such as for crew. At this complicated project it has been solved the great ergonomic problems that exist into the current cabins for air transportation. The limited space in between seats, which supposes the principal inconvenience for great stature passengers, has been solved tilting the position of the seats batteries so the passengers of the outside seats get an additional area for their legs comfort. It has also been eliminated the top boots, changing them for more accessible trunks at the cabin exits.