Blue Coast 174 Trimaran Motor Yacht "Galaxy"

With a length of 174ft / 53m, "Galaxy" is the largest trimaran mega yacht ever built in the world. Both the exterior and interior-design of this futuristic trimaran were created by star architect Jean-Jacques Coste. "Galaxy" has transatlantic range.


With long and slender hulls, the trimaran design is ideal for creating high stability even in stormy weather, as well as high speed and efficiency. It provides 40% less energy consumption than a monohull yacht.

Ample space and easy access to the water for numerous water toys and a Jacuzzi are of course included, as well as an extremely high-quality interior-design.

In three luxurious suites, the owners and 4 guests will find plenty of living space. They and the yacht will be looked after in the best possible way by the 6 crew members including the captain.

2600 hp/hp MTU engines bring Galaxy to a max. speed of 28kn. With her 18 tons of fuel, she has a range of up to 2,300 nautical miles at a cruising speed of 20 knots.

The shallow draft of 1.46 metres allows Galaxy to navigate shallow waters near coasts and islands.

Galaxy was built and classified according to Bureau Veritas regulations in Europe.

The sister ship "Galaxy of Happiness" is identical in design. A 60m trimaran is in the process of planning.

Design according to your preferences

The design of the Blue Coast 174 “Galaxy” can be adapted to your ideas as you desire in terms of length, width, number and layout of cabins, interior fittings and furnishings.

Manufacturing your Yacht

Under the constant supervision of Catamaris® and Jean-Jacques Coste, your BLUE COAST 174ft/53m trimaran will be built in a certified shipyard in Europe with many years of experience in successfully manufacturing numerous luxury yachts and Mega-multihulls.

Technical Specifications

LOA 174,00ft - 53.00m
Beam 57.22ft - 17.44m
Draft 4.79ft - 1.46m
Building High-Tech composite
Cabins Mastersuite + 2 luxury guest cabins
Crew cabins 3
Main Engines 2 x 1.300hp
Max speed under power 28 knots
Naval Architect Coste Design
Interior Design Coste Design

Video Galaxy

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Every BLUE COAST YACHT is unique. Jean-Jacques Coste's signature has made his designs timeless and elegant while maximising performance, comfort and luxury.