Method for lifting a firing safety detent and projectile using this method

A projectile comprising a fuselage, which fuselage houses the following:

• a warhead (WH), the firing of which is prevented by at least one safety device, and
• an arming device having a wind wheel capable of acting on said safety device so as to inhibit an action of the safety device, said wind wheel being set into rotation by the airflow surrounding said projectile during its flight,
• wherein said fuselage of said projectile comprises a lateral opening, in that an axis of rotation (X-X) of said wind wheel is disposed inside said fuselage at least substantially orthogonally to an axis (L-L) of said projectile extending through a nose and a tail of the projectile, in that said wind wheel is mostly located inside said fuselage and in that said lateral opening is designed to be successively passed through, during the rotation of said wind wheel, by peripheral ends of vanes of said wind wheel so as to project outside of said fuselage.