Helios, a 37.5 metre (123ft) long luxury yacht built by Fitzroy Yachts of New Plymouth, was commissioned with stringent noise level requirements.

In a marine acoustics market saturated by over specification of noise control treatment using expensive proprietary products, Marshall Day Acoustics were engaged to bring our innovative design experience to the task.

We reviewed every aspect of sound and vibration generation and its path through the structure, including the propeller, engine and generator noise and vibration, wave impact, and cabin-to-cabin sound transfer. We provided cost savings where proprietary products were replaced with more effective noise control solutions.

The result of our specification and the diligent work of the Fitzroy Yachts' craftsmen is a very quiet yacht, exceeding both the Client's expectations and the strict noise level limits at the briefed 80% of maximum rated engine speed.

A review of Helios in Seaspray magazine said that "....the noise and vibration levels are so low as to be nonexistent."

SPECIFICATIONS

Builder: Fitzroy Yachts

Category: Cruising Sailboat

Hull material: Aluminum

Hull configuration: Fin Keel

Hull designer: Dubois Naval Architects

Interior designer: Redman Whiteley Dixon

Exterior designer: Dubois Yachts