The formula to calculate the Boat Speed (S) is:
\[ S = 10.34 \times \left(\frac{\text{WLS}}{\text{WLM}}\right) - 10.34 \]
Where:
A boat's speed is the velocity at which a boat is traveling based on its waterline while moving and stopping.
Let's assume the following values:
Using the formula:
\[ S = 10.34 \times \left(\frac{30}{25}\right) - 10.34 \]
\[ S = 10.34 \times 1.2 - 10.34 = 12.408 - 10.34 = 2.07 \text{ knots} \]
The Boat Speed (S) is 2.07 knots.