At the end of last year, NASA has asked Boeing, Northrop Grumman and Lockheed Martin to create a set of design drawings for the creation of a last-generation airliner that should enter in service from 2025. The new aircraft will have completely new features: a speed equal to 85% of the speed of sound, a coverage of a 7,000 mile range and the capacity to carry a payload between 22 and 44 tons (freight...