Helicopters are marvelous pieces of engineering, providing a live demonstration of the laws of physics as they carry us into the skies. With metal or composite blades angled just right and spinning at ...

The fundamental design principles behind rotary-wing aircraft date back to the Renaissance, with some of the earliest-known designs belonging to Leonardo da Vinci. Naturally, technology has ...

Hill Helicopters engineered composite main rotor blades using a novel single-cure manufacturing process for stiffness and ...

A tourist helicopter crashed into the Hudson River in New York City on Thursday, killing six people. A former military helicopter pilot told BI the helicopter's rotary system appears to have failed.

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 ...