Mechanical self-percussion fuze for a non-gyrating ammunition

A mechanical self-percussion fuze for a non-gyratory ammunition, said fuze comprising a fuze body extending along a central axis between a distal end provided with a cap and a proximal end provided with a connector to assemble said fuze to an ammunition, said fuze comprising a firing pin disposed along said central axis, a primer provided in a primer holder arranged to be rotatably movable about an axis of rotation parallel and off-centered with respect to said central axis between at least one storage position, wherein said primer is off-centered with respect to said firing pin and an armed position, in which said primer is aligned with said firing pin and a pyrotechnical chain of said round, and a mechanism provided with at least two safety devices, coupled to said primer holder to keep said fuze in a safe state, until at least two mutually independent physical phenomena linked to the firing of the ammunition occur, wherein a wind turbine arranged to be driven in rotation by the relative movement of the air with respect to the ammunition during the ammunition's flight and to generate the rotation torque necessary for the operation of said mechanism which regulates the time necessary for the fuze to move from the secure state to an armed state, thus guaranteeing an expected safety distance, whatever the load with which the ammunition is fired.