A mechanism for retrofitting a turret that has a manual rotation system with a
motorized turret rotation system includes a gear box mechanically coupled to the
turret, an electrically powered prime mover unit mechanically coupled to the gear
box, a user operated control device electrically coupled to the prime mover unit,
and an electrical power supply electrically coupled to the prime mover unit. The
turret rotates relative to a body structure. The gear box and the prime mover unit
are mounted to the body structure. The control device and the electrical power
supply are positioned on the turret. The power supply provides electrical power
to the prime mover. The control device presents a control signal to the prime mover
when the user actuates the control device, and the turret rotates in response to
the control signal.