Rorlængde

Rorlængde, also known as hull length, is a critical measurement in the design and operation of boats and ships. It refers to the length of the boat's hull from the forward perpendicular (FP) to the after perpendicular (AP). The forward perpendicular is an imaginary vertical line drawn through the bow of the boat, while the after perpendicular is a similar line drawn through the stern. This measurement is essential for determining the boat's stability, speed, and maneuverability.

The rorlængde is typically measured in meters or feet and is used in various calculations, such as determining the boat's displacement, center of gravity, and metacentric height. It is also used to calculate the boat's beam (width) and draft (depth) in relation to its length, which are important factors in determining the boat's capacity and stability.

In sailing, the rorlængde is used to calculate the boat's sail area, which is a crucial factor in determining the boat's speed and performance. The sail area is typically expressed as a ratio of the rorlængde to the sail area, such as the length-to-beam ratio (L/B) or the length-to-sail area ratio (L/SA).

In summary, rorlængde is a fundamental measurement in the design and operation of boats and ships. It is used in various calculations to determine the boat's stability, speed, and maneuverability, as well as its capacity and performance.