How many methods of calculating excursion are mentioned?

The identification of three methods for calculating excursions reflects the necessity to accommodate various operational scenarios and data handling procedures in maritime operations. Different methods exist to estimate excursions based on factors such as time, distance, and environmental conditions, allowing for a more comprehensive analysis.

Using multiple methods helps to ensure accuracy and reliability in calculations, particularly in diverse conditions encountered at sea. This adaptability is crucial for making informed decisions related to navigation safety, regulatory compliance, and operational efficiency.

Recognizing three distinct methodologies enables officers and crew to select the most appropriate technique depending on the specific situation or available data, thereby enhancing both readiness and situational awareness.