A European study into Vortex Ring State (VRS) - one of the helicopter industry's most pernicious and persistent safety risks ...

31,560 people played the daily Crossword recently. Can you solve it faster than others?31,560 people played the daily Crossword recently. Can you solve it faster than others?

Emergency personnel work at the scene of the helicopter crash on the Hudson River on Thursday. (Eduardo Munoz/Reuters) ...

New York authorities have named two of the adult victims who died in Thursday's fatal helicopter crash ... incident has the marks of mast bumping — when the rotor hub strikes the main rotor ...

IN helicopter engineering, the "Jesus nut" is a slang term for the main rotor retaining bolt - the single critical component that secures the rotor blades to the mast. If this nut fails mid-flight ...

New details have emerged regarding the final moments of the helicopter that plunged into the Hudson River in Jersey City, New Jersey, on Thursday afternoon. The pilot of the doomed aircraft ...

Mast bumping is a helicopter issue where the rotor hub strikes the mast, often in two-bladed, teetering rotor systems like Bell models. It happens during low-G maneuvers or abrupt control inputs ...

Mast bumping is a phenomenon that can occur in helicopters with teetering rotor systems, such as the Bell 206. It happens when the rotor hub strikes the mast—the component that connects the rotor ...