ADASTRA TRIMARAN SUPERYACHT by John Shuttleworth Yacht Designs

ADASTRA TRIMARAN SUPERYACHT

A beautiful yacht with low fuel consumption yet providing excellent sea keeping qualities and luxurious accommodation, Adastra Trimaran is a result of more than five years of design and planning by the world renowned John Shuttleworth Yacht Designs

Described by Boat International as "one of the world's most amazing super yachts, that could spell the future for efficient long range cruising", the 42.5m Trimaran Adastra is being built in China for a Hong Kong clients Anto and Elaine Marden.

Extensive tank testing and radio controlled model tests in waves have been carried out to analyze stability and performance. Outrigger height has been optimized for ease of motion at sea, and a new outrigger shape has been developed to increase stability in waves. A state of the art structural analysis has been undertaken of all the major components in the yacht in order to achieve the light weight required for very low fuel consumption. All this has resulted in the exceptional vessel that is nearing completion in China.

Features a spacious saloon area on the main deck which offers superb views through a panoramic window and accommodates a lounge area, dining table, and navigation station. A forward facing door through the saloon window gives easy access to a large sunbed on the foredeck. The aft deck has a sofa and bar area to port and a dining area to starboard, further aft of this there is space for a 4.9 metre tender and directly below is a garage which can store a 3.1 metre tender. The garage door has been designed to fold out and create a large dive platform. Extra space has been created below deck by slightly flaring the central hull just above the waterline. This area has been split into two sections with a full-width master cabin located aft with access from the deck saloon, and two further guest cabins, accommodation for the crew, and the galley located forward of the engine compartment. Adastra offers comfortable accommodation for nine guests and up to six crew members. The main helm station, which has seating for two, is positioned in a raised pilot house situated between the aft deck and the saloon area and forms part of the cross beam structure.

The Superstructure is carbon fibre with Nomex honeycomb core, the hull is Glass/Kevlar foam sandwich and the interior is light weight oak cabinetry using honeycomb panels.
A SiMON_ integrated ships monitoring system monitors fuel, security, pump sensors, electrical, lights, etc and has a fully automated fuel management system which includes an Alfa Laval system for cleaning the fuel.

The anchoring system is unique with 3 anchors all driven by carbon fibre drum winches run by hydraulics. The primary anchor is a custom 130kg Bruce style anchor that deploys out of the starboard wing. The second anchor is 80kg and deploys out of the bow with a carbon fibre arm. The third anchor is 60kg which deploys out of the port wing and will be used as a stern anchor.

Specification

• Hull Draft - 1.12 m (1.6m to tip of rudder)
• Main engine - 1x Caterpillar C18 -1150 hp @ 2300 rpm
• Outrigger engines - 2x Yanmar 110hp @ 3200 rpm
• Tenders - 4.9m stored on the aft deck and a 3.1m stored in the garage
• Displacement cruising max - 15000 litres fuel - 64.8 tonnes
• Displacement ocean passage max - 32000 litres fuel - 77 tonnes
• Speed max - 22.5 knots
• Range at 17 knots - 4000 miles
• Fuel consumption at 13 knots - 90 litres per hour.
• Fuel consumption at 17 knots - 120 litres per hour
• Exterior Styling - John Shuttleworth Yacht Designs Ltd. and Orion Shuttleworth Design Ltd.
• 3D Modelling and Rendering - Orion Shuttleworth Design Ltd.
• Regulation Compliance - Orion Shuttleworth Design Ltd.
• Naval Architecture - John Shuttleworth Yacht Designs Ltd.
• Structural Design - John Shuttleworth Yacht Designs Ltd. & Applied Structural Analysis Ltd.
• Interior Design - Jepsen Designs, Hong Kong
• Builder - McConaghy Boats, Zhuhai, China

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