Feature 3 | HIGH-SPEED VESSELS New high-speed Pentamaran yacht
BMT Nigel Gee Ltd has introduced a new high-speed Pentamaran concept to the large yacht market, Project Véloce, which is capable of speeds of over 40knots.
market. Developed for high-speed applications, the patented Pentamaran hull form is a derivative of the stabilised monohull concept featuring a long slender central hull, hydrodynamically optimised without the constraints of needing to be stable. Stability is then provided by two pairs of outriggers or ‘sponsons’. Conventional stabilised monohulls
P
typically require relatively deeply immersed and long sponsons to meet damaged stability requirements and these can incur significant resistance penalties. The Pentamaran overcomes this
by having two pairs of sponsons; a very short and shallow pair aft and a forward pair clear of the static water
roject Véloce represents a truly innovative application of technology in the large yacht
surface. These forward sponsons only become immersed as the vessel heels, consequently stability characteristics are maintained with no resistance penalty. The Pentamaran offers a wide
bodied and stable platform with good seakeeping
characteristics whilst
retaining minimum speed loss in higher sea states. Project Véloce is based on a 130m
platform capable of over 40knots. The beam of 30m offers significantly more internal area than on an equivalently sized monohull leading to exceptional internal spaces with true flexibility in configuration of the layout. The propulsion system features a
CODOG (Combined Diesel or Gas) plant producing approximately 44MW of installed propulsive power, delivered via waterjets offering outstanding manoeuvrability and acceleration. For
low- and medium-speed operation twin 20V8000 diesels are utilised providing efficient long-range operation, whilst for sprint speeds a single LM2500+ pushes the speed beyond 40knots. James Roy, yacht design manager, BMT Nigel Gee said, ‘we have undertaken some US$5 million worth of testing on numerous Pentamaran designs and the technology is now fully mature. Further development of the Project Véloce design is currently underway.’ SBI
TECHNICAL PARTICULARS Project Véloce
Length, oa ............................................130m Beam, max .............................................30m Draught .....................................................5m Propulsion ................................ 1 x LM2500+; 2 x MTU 20V8000 and waterjets
Speed .............................................. 40 knots Range ............................3500nm at 20knots
Project Véloce is the new high- speed Pentamaran concept from BMT Nigel Gee.
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Ship & Boat International September/October 2008
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