What is the method to convert from statutory miles to nautical miles?

Aligning statute miles on the inner scale with nautical miles on the outer scale is the method typically used for converting statutory miles to nautical miles. This practice is common when using navigation tools like a navigation plotter or a specific type of conversion slide rule.

When you position the inner scale correctly with statutory miles, the corresponding value directly across on the outer scale will provide the equivalent distance in nautical miles. This visual alignment takes advantage of the proportional relationship between the two types of miles, enabling a quick and effective conversion without complex calculations.

The other methods, such as lining up nautical miles with kilometers or using a burn rate, do not pertain to the direct conversion of statutory miles to nautical miles. Direct conversion without any scales lacks the precision and visual aid that the scale alignment provides, making it less practical for navigational purposes.