Why do we need new aircrafts?

Take a look at the nature: birds start slowly and have elastic wings.

We are now able to construct planes that have the same properties for the following advantages:

• Less energy consumption

• Faster, because the airplanes can reach higher spheres with lower resistance.

• More silence, there is less air resistance to surmount.

• Shorter runways with fewer requirements, every town can afford an airport

• The airplanes do not crash down, they are gliding down.

Theoretical background