Alex Lever

News: Rob Doyle Design unveiles 46m (150′) superyacht concept

October 23, 2014 by Alex Lever
View large version of image: Rob Doyle Design unveiles 46m (150') superyacht concept

Hull and Deck Styling and Design

The Rob Doyle designed/styled hull package combines a very powerful performance hull with good sea keeping qualities, combining speed and comfort. This is achieved with a relatively beamy boat with that beam carried well aft, giving a fine angle of entry but still allowing extensive internal volume for a spacious interior layout. The hull form features a chine that carries the beam far out board to give best form stability coupled with a hydrostatic spray rail that aims to keep the wetted surface to a minimum.

Rob Doyle Design uses the latest in VPP (Velocity Prediction Program) and CFD (Computational Fluid Dynamics) technology along with a large database of Tank Test results to provide the backbone of its cutting edge naval architecture.

The combination of a sleek profile, balanced shearline and a plumb bow allows the hull to take full advantage of the longest possible waterline. Careful design on the run aft allows the boat to float dry in light airs, reducing the wetted surface area but soaking up the waterline length when needed for best upwind performance.

The offwind performance will be exceptional. The high stability and high level of control from the twin rudder configuration in combination with the powerful sailplan will give a thrilling ride in full comfort for the owner, guests and crew.

The deck styling is all about exposure of the interior to the exterior with as low sleek glass wraparound superstructure and a distinctive Rob Doyle Designed superstructure styling detail, this enables a very large and secure sky deck to which the client and friends can enjoy the sights and sounds of sailing a yacht of this size in comfort.

The design will lean on Rob Doyle Design’s 20-year experience of designing and building the most advanced aluminium and composite hulls. Rob Doyle Design has been at the cutting edge of this development, having been involved in the design of the world’s largest aluminium sailing hull structure of the 64m Perini Navi Felicita West and later the most technologically advanced aluminium hull of Royal Huisman’s 58m Ethereal, to M5 the world’s largest composite sailing yacht, all three projects pushing the classification societies to new grounds in performance aluminium and composite structures.

The foil package

The fin and bulb keel is designed to give the least drag and gain the maximum stability but to allow the draft of the yacht not to be prohibitive to gaining access to the best cruising grounds. This is achieved by means of a vertical lift keel using a fast acting single hydraulic ram, tried and tested technology that Rob Doyle Design has developed and had passed through the most meticulous classification societies. The twin rudder system is the best solution to allow shallow draft cruising whilst still giving total control of this high performance yacht. The twin rudders allow the owner to push the yacht hard when others need to back off. Power is nothing without control, and this yacht will have an abundance of both.

The Ketch Rig

Bucket Racing has pushed the designers to seek maximum performance from performance cruising yachts. Rob Doyle Design can see great advantage in the rating rules regarding the mast/sail configuration and how the boat is best used in cruising and racing modes. The advantages and performance gains are large for yachts that can complete manoeuvres quickly and with total safety. Often overlooked but the extra undervalued area and weighting of mizzen staysails can give ketch rigs a nice advantage in this style of friendly competition.

Following years of extensive racing on the biggest yachts Rob Doyle Design has developed and optimised the Bucket rig, again maximising performance along the way. The sailplan calls for fast flush deck furlers, coupled with high speed captive winches, enabling quick and safe manoeuvres. The latest advances in the top down furling for asymmetric spinnakers and mizzen staysails keep the crew safe and always allow spinnakers to be dropped at any time. Rob Doyle Design is involved in the largest top down system on a 60m performance sloop which will be delivered later this year.

Coupling this rig with a balanced foil package and a powerful hull shape will give a truly exciting package and lift the performance levels of performance cruising ketches still further.

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