The helicopter has really changed the way that...  ...rotorcraft isn't as fast as fixed wing aircraft. Eurocopter has announced that its X3 Hybrid combining rotors...

The aviation company Eurocopter is developing noise-reducing helicopter blades th...  ...e the sound that a helicopter makes: This week Eurocopter unveiled its most recent effort to reduce helicop...  ...at the link. Link via Popular Science | Photo: Eurocopter