What is the minimum degree reading recommended to ensure safe helm navigation?

The recommended minimum degree reading for safe helm navigation is 2 degrees. This specification is essential to ensure that navigators can make precise adjustments to their course and maintain control of the vessel under varying conditions. A 2-degree reading allows for enough sensitivity to detect minor changes in heading, which is crucial for avoiding potential hazards and ensuring safe passages, especially in congested or narrow waterways.

Additionally, this degree of accuracy helps in fine-tuning the vessel's course in tandem with other navigational aids and instruments, contributing to overall safety and efficiency during navigation. Lower readings might not provide enough precision, thereby increasing the risk of navigational errors that could lead to dangerous situations.