An algorithm that helps engineers design better helicopters may help astronomers more precisely envision the formation of planets and galaxies. Yale researchers Darryl Seligman and Greg Laughlin have ...

This week Eurocopter unveiled its most recent effort to reduce helicopter noise with the radical-looking Blue Edge rotor blade. The new blade has been tested on one of the company's EC155 ...

A conversation between a Virginia State Police helicopter pilot and his trooper co-pilot before a crash that killed both of them referred to an aerodynamic phenomenon that a National Transportation ...

The final NTSB report says Jim Clayton's flying created an aerodynamic phenomenon known as vortex ring state, and led to the crash when combined with his "inability to arrest the helicopter's ...

NTSB report says a phenomenon called vortex ring state cause the Aug. 12, 2017 helicopter crash that killed two Virginia state troopers. Investigators say flight conditions, lack of training ...

Pall's PUREair vortex systems are virtually maintenance-free: a 'fit and forget', environmentally friendly solution for helicopter engine inlet protection. Comments 2 Comments ...

The second training flight of the day was the accident flight. The pilot-trainee held an ATP pilot certificate, CFI-helicopter and CFI-instrument helicopter ratings, and had accumulated 6,030 ...

The aircraft will use the company's Blue Edge blades, which feature a hockey stick-shaped leading edge at the outer tip designed to reduce the noise generated by blade-vortex interaction.

Helicopters are so loud because their blades create turbulence as they pass behind one another in their own wakes. The phenomenon is called a " blade-vortex interaction ," and it makes for that ...

The mechanism that causes maple tree "helicopter seeds" to spin has been a mystery, ... This vortex doubles the lift compared to the performance of non-swirling seeds.