Boeing is developing the 797, a 1000 passenger jet with a 265 foot wingspan using a blended wing design developed with NASA. The 797 aims to reshape air travel for 100 years by carrying 50% more passengers than the Airbus A380 with a 33% efficiency increase due to its 50% higher lift to drag ratio and 25% lower weight. This makes the A380's $13 billion investment appear questionable as the 797 could make it obsolete.