Sonar S178 Stabilizer

Plano, loose, and even faster, the new S178 stabilizer is a high-speed upgrade of the Sonar Foil system for experienced cyclists. We recommend pairing the S178 with the HA950 front wing size or smaller.

The S178 has a higher aspect ratio than the S208, which means less resistance, and the flatter roundness (front view) allows for greater maneuverability. 

As we increased the reach of the front wing, we needed to match the lift force of the front wing with that of the stabilizer. While the front wing generates vertical lift, the stabilizer has a force that acts downward, preventing the front wing from nosediving.

A larger stabilizer translates to more pressure on the front foot, while a smaller stabilizer equates to less pressure on the front foot. 

The North Stabs are mounted on top of the fuselage, which helps them avoid the turbulence from the front wing's flow, creating a smoother ride. This top mounting also gives the rider an early warning of breach: the stab pierces the water's surface first, giving them a better chance to recover before the front wing rises too much.

Like the front wings, all Sonar stabilizers are made of pre-impregnated carbon, ensuring optimal stiffness and direct performance. The thin section of the profile reduces drag, while the material properties help maintain structural integrity and stiffness.

The stab wounds have a great influence on performance. As you move towards smaller wing sizes, we recommend switching to a smaller stabilizer to make it more maneuverable. Experienced cyclists will really feel the difference. A new tail can have a big impact on your style.