Yacht Designer

News: The Sabdes 50 meter Catamaran yacht design (CAT 50)

January 22, 2009 by Yacht Designer
View large version of image: The Sabdes 50 meter Catamaran yacht design (CAT 50)

The Sabdes 50 meter Catamaran design, Cat 50, is a large luxury motor yacht design, which when built would be the first private luxury superyacht cat of this size in the world.

The Cat 50 evolved due to a client request to develop a larger version of our 50m monohull axe bow – so we decided to make a wider version. Essentially we ‘cut’ our 50m mono down the middle and developed asymmetrical hulls forming into the tunnel, with added foils to lower hull resistance and improve ride. The Cat 50 has an overall beam 5.5 metres wider than the 50m mono, yet shares the same profile and technical DNA. Using the advantages of a Cat hull design, we have created a yacht with the accommodation equivalent to a 65m mono with the ability to be docked where 50m yachts can.

The 13.5m beam allows guest accommodations to be placed on the main deck, with owners and VIP on the upper deck. The upper sundeck can be fully enclosed and alternative usage proposed. By having asymmetrical hulls for the Cat 50, there is more curved hull form fwd which has greatly improved aesthetics by reducing the ‘block look’ seen in conventional hulled Cat yachts. Special features are a 5m horizon pool aft on the main deck, and a glass viewing window in the floor of the main salon looking down to the water (with lighting at night to attract fish for an amazing show).

The catamaran design came from the need for comfortable accommodations for up to 10 guests in a yacht with minimal draft allowing the capability to access hard to enter bays and marinas that longer and deeper yachts would find difficult. A major advantage of the twin hulls is in providing superior stability which translates into onboard guest comfort. The twin hulls are highly efficient asymmetrical axe bows with a high tunnel between, and will give 20+ knot performances.

The brief from the client for the yacht specified to integrate into the accommodations a ’satellite headquarters’ to monitor and run his corporation from when in-between breaks from intensive cruising. Accordingly, the yacht’s upper most deck is dedicated as a virtual conferencing office, with advanced communications and network systems allowing access to land based servers from anywhere on the globe.

The superyacht has huge multiple level outdoor entertaining spaces, another prerequisite from the client who wants to optionally be able to cater for business functions onboard, noting business functions will never be quite the same – there’s a glass horizon pool 5 metres wide on the main deck. A glass observation window is designed into the floor in the salon where guests may view the marine life below in-between the hulls while moored in crystal clear waters.

The yacht will be propelled by hybrid diesel electric technology, a combination of conventional diesel-electric shaft drives with twin cycloidal rudders which in passive mode steer the vessel; in dynamic mode this system allows the Cat 50 to cruise at up to eight knots silently while producing zero emissions by using its Lithium Iron Phosphate (LiFePO4) batteries for power. Solar panels on the upper deck will be used to put charge back into its Lithium Iron Phosphate battery banks. The diesel generators are being optimised to run on alternative fuels such as biodiesel (cellulosic based), and will have gas particle separators in the exhausts – the main intent being low impact marine friendly operation.

THE SPECS:

LOA: 50.00m. LWL: 48.90m. Beam: 13.50m. Draft: 2.60m. Height (keel to mast top): 16.90m. Propulsion: Hybrid diesel/electric system. Speed: 22 knots. Range: 3000nm. Materials: Hull Steel / Superstructure Aluminium. Designer: Scott Blee.

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