A method and system for a helicopter blade emergency detachment system
that has an activator in the cockpit to initiate the system, an ignition
train to provide the detonation signal, a transfer system at the base of
the main rotor shaft to move the signal from the stationary helicopter to
the rotating blades, and explosive charges located at the root of each
main bearing-less rotor blade to separate the composite blade from the
main rotor. These four components interact in the way described to enable
the blades of the helicopter to be detached during an emergency, thus
increasing the stability of the aircraft during a hard landing and/or
allowing for the use of an occupant ejection seat or parachute while the
helicopter is still in flight.