McConaghy Boats Holds Launching Ceremony for Trimaran Adastra (China)

McConaghy Boats Holds Launching Ceremony for Trimaran Adastra

Two days ago, McConaghy Boats successfully conducted the launching ceremony for 42.5m Trimaran Adastra. The 42.5m Trimaran is being built for a Hong Kong client for long range ocean voyaging. Designed by West Sussex-based John Shuttleworth Yacht Designs “Adastra” takes the power trimaran concept further than has ever been attempted before, previous vessels like “Earthrace” and “Cable and Wireless” were stripped out record breaking machines.

The challenge of turning this concept into a viable luxury yacht has led McConaghy Boats to further research and to develop new thinking on stability and comfort at sea for this type of craft.

“Adastra” is the result of more than 5 years of design and discussion with the owners, to build a yacht that meets the needs of a very experienced ocean voyaging couple and their family, and to provide the level of comfort and style that would be expected in a yacht of this class and size. No effort has been spared in the challenge to produce a beautiful yacht that will have low fuel consumption and yet provide excellent sea keeping qualities and luxurious accommodation.

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 bow 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.

A SiMON² integrated ships monitoring system monitors fuel, security, pump sensors, electrical, lights, etc. The vessel has a fully automated fuel management system which includes an Alfa Laval system for cleaning the fuel.

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. To help reduce weight, virtually every aspect of the boat is custom built. This includes carbon fibre hatches, portlights, ladders and even hinges, which are all built specifically for the vessel.

 

Specification:

LOA – 42.5 m

Beam – 16 m

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

Generators – 2 x 36 kw custom in the outriggers linked to 110 Hp Yanmar engines, and 1x 26 kw Northern lights in Main engine room

Owner and Guests – 9

Crew – 5-6

Tenders – 4.9m stored on the aft deck and a 3.1m stored in the garage

Freshwater Capacity – 2x 800 gph fresh water makers – 2700 L water

Displacement light – Fully equipped and full stores and crew, no fuel and no water – 49 tonnes

Displacement cruising max – (normal operational load) 15000 litres fuel – 64.8 tonnes

Displacement ocean passage max – (only for occasional long ocean passages) 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

[mappress]
Shipbuilding Tribune Staff, April 13, 2012; Images: mcconaghyboats