Davis Whale Tail XL Aluminum Stabilizer Fin

The Davis Whale Tail XL Aluminum Stabilizer Fin is a performance-enhancing marine stabilizer designed to improve handling and efficiency across inboard/outboard and outboard-powered boats. This XL aluminum stabilizer fin leverages a hydrodynamic design that captures energy from prop wash—normally wasted—and converts it into lifting force for more responsive throttle control and better directional stability in both freshwater and saltwater conditions.

Measuring 13.75 inches in length with a 15.5-inch height and weighing 3.7 lbs, the Whale Tail XL aluminum construction provides durability against the corrosive marine environment while maintaining a lightweight profile that won't impose significant drag penalties. The fin's extended geometry positions it directly behind the propeller to maximize interaction with the pressure zone created by prop rotation. This design approach delivers immediate responsiveness when acceleration is needed and contributes to measurable fuel economy improvements and increased top-end speed across various boat platforms and motor configurations.

Weekend anglers and offshore fishermen alike benefit from the stabilizer fin's ability to reduce bow rise during acceleration, flatten the running attitude at cruise, and maintain course tracking in rough water. The 15-minute installation means minimal downtime and no special tools required. Whether you run a ski boat, fishing platform, or recreational cruiser, the Whale Tail XL works with existing motor installations without modifications. Freshwater lakes, coastal bays, and open ocean environments all present different hull dynamics—this fin compensates across those scenarios by working with your boat's natural geometry rather than against it.