The time required for a lighted aid to complete a full cycle of light changes is listed in the Light List as the?

The time required for a lighted aid to complete a full cycle of light changes is referred to as the period. In the context of navigation aids, the period is crucial as it defines the timing of the light's on and off sequences, which helps mariners identify the specific aid by its light characteristics. Each light pattern has a defined period that contributes to its recognition and assists nautical navigation.

The period is expressed in seconds, indicating how long it takes for the light to return to its initial state after completing one full cycle of illumination. Understanding the period allows navigators to distinguish between different aids to navigation, as each has a unique light signature that includes both its color and rhythm.

While other terms might relate to the functioning of navigation lights, they do not convey the same specific meaning as period does in this context. For instance, frequency typically refers to the number of cycles per unit time and is inversely related to the period, which may cause confusion. The term "set" generally refers to a specific configuration or arrangement and does not pertain to the timing of light changes. "Function" describes what role the aid serves and does not provide specific information about the timing of its light sequences. Hence, period stands out as the correct term to describe