The nautical device designed to solve time, distance, and speed problems is known as what?

The nautical slide rule is specifically designed for solving time, distance, and speed problems in navigation. This tool utilizes a manual sliding mechanism to allow mariners to perform calculations that are crucial for safe navigation at sea. By aligning the appropriate scales, users can quickly find the relationship between speed, distance, and time, which aids in planning voyages and ensuring that vessels remain on course.

The slide rule operates by providing a practical means of calculating these parameters without the need for electronic tools or digital displays. This can be especially valuable in situations where electronic equipment may fail or be impractical to use. The smooth movement and straightforward design make it user-friendly, allowing crew members to reliably make these essential calculations on the go.

Other options like a nautical calculator or nautical speedometer are not standard terms or devices recognized in traditional navigation practices. A nautical plotter, while a helpful tool for plotting courses on a chart, does not specifically perform calculations related to time, distance, and speed, making it unsuitable for this particular function.