Outfitted with a long aluminum wire, this helicopter carries eight rotating saw blades to cut trees along a transmission ...

Six people died when a helicopter crashed into the Hudson River Thursday afternoon. One aviation expert says that the entire rotor assembly may have come off, causing the crash. The tragedy is the ...

Eversource has been using helicopters at various spots around the state to cut tree branches near remote transmission lines.

The number of blades a helicopter has is very important because it speaks to what the helicopter was designed to do. For example, adding more blades can significantly improve a helicopter's ...

An Airbus Helicopters H175 parked on an oil platform had four main rotor blades snapped off in strong winds after a malfunctioning rotor brake left the crew unable to tie down the still-rotating ...