What is the main function of shipboard radar systems?

The primary function of shipboard radar systems is to detect and track other vessels and obstacles. Radar operates by sending out radio waves and receiving echoes that bounce back from objects in the environment. This allows the ship to identify the distance, direction, and speed of other vessels and obstacles in the vicinity, providing critical information for navigation and safety.

The ability to detect and track nearby objects is essential for situational awareness, especially in busy shipping lanes or during low-visibility conditions. Radar data is typically displayed on screens in the ship's bridge, enabling watchstanders to make informed decisions regarding navigation and collision avoidance.

The other options, while related to various aspects of maritime operations, do not accurately describe the main function of radar systems. For instance, communication with aircraft relies on different systems such as radios or transponders. Measuring fuel consumption involves other types of instruments, not radar. Weapon targeting assistance typically utilizes advanced systems for guidance and control but does not hinge primarily on radar functionality.