There are a growing number of larger performance multihulls appearing with increasing effort also now going into devising a pragmatic rating system to allow better competition between types. The RP45 cat, however, ramps up the emphasis on speed by opting for a clear bridgedeck with all the living space in the hulls; this may turn out to be a genuine breakthrough design
with separate shower and the galley in the starboard hull. The port hull accommodation includes two guest/crew berths with shared head and a dinette area. The fit-out is simple but comfortable in keeping with modern design trends; numerous portlights and windows create a light and airy interior.
Under power the new 45ft cat is driven by two diesel saildrives, but in the longer term the design team aims to introduce electric drives, given the rate of development and increasing implementation of these systems. To fulfil the design brief for a successful racing design all opportunities for performance advantage were investigated. The modern hull design exhibits a low rocker shape and reverse stem while maintaining a high-volume bow for reserve buoyancy with a flying knuckle to improve manoeuvrability.
large open deck of this new design provides significantly more usable space. When required, a bimini hard top covering the guest seating area will provide protection from the elements for cruising passages and day sails. At anchor the transom doors open to provide bathing platforms with uninterrupted access from the bridgedeck to the water. These platforms also facilitate boarding from either a dock or tender. The forward trampolines offer more lounging and sunbathing area.
The interior arrangement features the owner’s quarters, a head
The rig utilises an efficient rotating mast arrangement. The headstay, code zero and downwind sails are supported with a stayed longeron/sprit, eliminating the customary forward beam to reduce windage and pitching motion. C-shaped daggerboards provide leeway resistance as well as some vertical lift to reduce virtual displacement – also ensuring the bows stay up when the boat is being pressed hard downwind.
This 45ft catamaran, designed and engineered by the Reichel/Pugh studio, is well positioned to make an impact in the growing performance multihull market. It is truly a versatile offshore racing yacht, combining high performance with the amenities and comfort for relaxed cruising while also maintaining the safety and ease of use necessary for such a boat to be sailed by its owner and guests without employing professional sailing crew. Tony Beale, Reichel/Pugh Yacht Design, San Diego
q To be involved in the Technical Brief advertorial column please contact –
graeme@seahorse.co.uk SEAHORSE 33
Technical Brief
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