88% roll reduction on Sunseeker Manhattan 60

Retrofitting an existing vessel with a modern fin stabilizer system is one of the highest-impact upgrades a yacht owner can make. This 2008 Sunseeker Manhattan 60, cruising the Mediterranean, was upgraded with Sleipner Electric Vector Fins — with documented, measurable results.

The vessel

• Model: Sunseeker Manhattan 60 (2008)
• Location: Italy / South of France
• Cruising + at anchor comfort

The upgrade

The Sunseeker Manhattan 60 was retrofitted with a complete Sleipner fin stabilizer system:

• SPS50E 24V electric actuators
• V4-12 Vector Fins

The stabilizer installation was engineered specifically to this hull – not a generic off-the-shelf fit, but a tailored integration designed to extract maximum performance from the boat's existing geometry. Retrofitting Vector Fins to a motor yacht in this size range requires no major structural changes, making it a practical and cost-effective alternative to buying a new vessel.

The results

The Sunseeker Manhattan 60 was tested before and after the stabilizer retrofit under real sea conditions.

At anchor

88.4% roll reduction – measured over a 20-minute test with the system on versus off.

Underway

+1.2 knots increase in top speed, along with improved handling, control, and onboard comfort across the speed range. The speed gain is a direct result of the hydrodynamic lift generated by the Vector Fins' curved design — the same design that makes them up to 50% more efficient at anchor than traditional flat fins.

Why retrofit a stabilizer system?

Replacing a well-maintained yacht is rarely the most practical solution. Retrofitting a fin stabilizer system delivers modern comfort and measurable performance gains — at a fraction of the cost of a new vessel.

For Sunseeker Manhattan owners and motor yacht owners in the 50–65 foot range, a stabilizer retrofit makes sense for several reasons:

• Dramatically reduced roll at anchor and underway
• Increased resale value — stabilized yachts sell faster and at higher prices
• Improved safety and usability across a wider range of sea conditions
• No need to replace a structurally sound hull

If your current boat suits your needs but rolls more than you'd like, a Vector Fins retrofit is worth serious consideration.

Want to retrofit your vessel with a fin stabilizer system?

Contact us to find the right system for your boat — or explore our full range of retrofit stabilizer solutions.