The pilot of the tourist helicopter that crashed into the Hudson River on Thursday afternoon could not have done anything to save himself or his five passengers after the aircraft’s rotor blades and ...

Although the helicopter, aptly named Ingenuity ... NASA was also worried about the phenomenon of blade flapping, which is caused by flexing of the rotor blades above and below the plane of ...

Compared to a propeller of an airplane or the rotor of a helicopter, the proprotor of a tiltrotor aircraft ... Especially the monitoring of the flapping movement of the rotor allows enhancing the ...