Ratings are personnel who assist officers in all departments. Ratings are skilled seafarers who carry out essential tasks in the day-to-day running of the ship. A rating is also trained in fire prevention and sea survival skills. In an emergency a rating helps to deal with hazardous incidents, for example, as a member of a fire-fighting party or fast rescue boat crew.
Steer the ship and assist the deck officer in other navigational duties. In port, they secure the ship to the dock, carry out maintenance and contribute to the security of the vessel.
Maintain shipboard machinery. They carry out routine oiling, greasing and servicing, and strip, repair and fit equipment parts. Experienced ratings help the engineering officers to monitor the main plant and other equipment to make sure it is run safely.