Helicopter rotors impart spin on the fuselage because of Newtonian physics — that is, when an object exerts a force on another object, the second object also exerts its own equal and opposite force.

Video showed the helicopter plunging into the 5-foot-deep water near Jersey City, New Jersey, without its tail rotor or main rotor blade. The NTSB is investigating the cause of the crash.

The main rotor of the doomed helicopter that crashed into the Hudson River was finally recovered Monday — as investigators continue to probe what caused the deadly tragedy. Divers were spotted ...

An object floats at the scene of a helicopter crash on the Hudson River near lower Manhattan in New York, as seen from Newport, New Jersey, U.S., April 10, 2025.© Eduardo Munoz, REUTERS ...

Aviation expert talks helicopter that made emergency landing in Whitemarsh Township 02:52. Investigators in Whitemarsh Township, Pennsylvania, are just beginning the process of trying to determine ...

An eyewitness captured video during the moment the helicopter fell to the water, appearing to twist rapidly as it did so. Moments after, a rotor is seen falling, detached from the aircraft.

The main rotor of the doomed helicopter that crashed into the Hudson River was finally recovered Monday -- as investigators continue to probe what caused the deadly tragedy.

Rotor from deadly NYC helicopter crash found in Hudson River. Six people, including three kids, were killed in last week's crash. By Emily Shapiro, ABC News. Tuesday, April 15, 2025.