Waves make yachts roll. This is not only uncomfortable but may even result in dangerous conditions if this roll equals the hull’s natural movement.
Fin stabilization corrects this motion with an equal and opposite force applied in exactly the right phase and proportion. Waves are thus countered in their tendency to aggravate the yacht’s natural roll.
A rolling boat does not operate at maximum efficiency and over a long course steers a zigzag track. With a roll stabilizing system, a yacht steers a nearly straight course, often improving fuel economy and greatly enhancing comfort for its passengers.