What type of pump is used as an emergency steering pump?

The hand pump is employed as the emergency steering pump primarily due to its simplicity and reliability. In situations where power may be lost or electrical systems fail, a hand pump provides a manual means of steering the vessel. The hand pump operates independently of the ship's electrical systems and can be used effectively by personnel to control the steering mechanism in critical circumstances, ensuring maneuverability and safety.

Its design allows for quick deployment in emergencies, requiring no complex setup or power source. This makes it an essential component in emergency steering systems, especially in naval operations where maintaining control of the vessel can be crucial in adverse situations. The reliance on mechanical advantage and human effort ensures that even when other systems are compromised, the hand pump can still function effectively, making it an invaluable tool on board for any maritime crew.