HS40 Fin Stabilizers – SE Stabilis Electra System (California)

California boating can be smooth at sunrise and choppy by lunch. Between Pacific swell, afternoon wind chop, and constant wake traffic near marinas and popular anchorages, smaller planing yachts often feel the motion more intensely. The HS40 Fin Stabilizers (SE Stabilis Electra System) are designed to reduce roll and improve ride comfort underway, helping your yacht stay more composed on coastal runs and day cruising throughout California.

The HS System is an evolution of the SE Stabilis Electra platform, engineered to suit a wide range of hull shapes and optimized for planing yachts. Refinements include a more efficient fin profile aimed at reducing resistance, upgraded electronics for faster stabilization response, and the ability to manage integrated onboard systems—such as steering and intruder functions—alongside fin operation.

Built for Planing Yachts in California Sea States

HS40 is sized for smaller installations that still demand fast, confident roll control at speed. In California conditions, it’s designed to help:

• Reduce roll and improve comfort during coastal cruising
• Keep the yacht steadier when wind chop stacks up
• Improve confidence and control at planing speeds
• Support efficiency with a fin profile designed to reduce drag

Key System Advantages

• Evolution of SE Stabilis Electra, optimized for planing yachts
• Efficient fin profile designed to reduce resistance
• Upgraded electronics for faster performance and response
• Capability to manage integrated systems (steering/intruders) alongside fin control
• Heavy-duty construction, sealing, and lubrication designed for long service life

Engineering & Construction Details

HS40 is built around marine-grade components selected for strength, corrosion resistance, and dependable sealing:

• Fin connection: Precision machined oversized self-locking taper
• Shaft: 65 mm duplex stainless steel
• Actuator housing: High-strength ductile iron
• Bearings: Heavy-duty tapered roller bearings (upper and lower)
• Lower seal: Two double-lip seals for maximum seawater protection, accessible in a 316 stainless steel retainer
• Upper seal: Double-lip, spring-loaded seal for grease retention and protection against external contaminants
• Lubrication: Pre-packed water-resistant grease for lifetime maintenance-free service; reduction gearbox lubricated with mineral oil
• Fit & finish: Painted RAL 9016 and polished

HS40 Specifications

*Power absorption values may vary by installation and operating conditions.

Why HS40 Makes Sense in California

For smaller planing yachts running California waters, HS40 is designed to deliver quick, effective roll control while keeping hydrodynamic resistance low. With a refined fin profile, faster electronics, and rugged marine construction, it’s a practical stabilization solution for owners who want smoother cruising, less fatigue onboard, and a more comfortable ride when the sea state turns active.