What is the required visible angle from the steering position of a ship?

The required visible angle from the steering position of a ship is 60 degrees on either side. This angle ensures that the helmsman has a sufficient field of vision to effectively navigate the vessel and detect other ships, navigational hazards, and changes in the surrounding environment. This visibility range is crucial for making timely decisions and maintaining maritime safety, allowing the operator to perform necessary maneuvers without relying solely on navigational aids.

While other options may suggest wider angles, they may not be practical in terms of maintaining a clear line of sight while steering, especially in confined or busy waterways. The established standard of 60 degrees provides a balance between operational efficiency and safety, enabling the crew to monitor their immediate surroundings effectively.