In July 2002, Sam Sorgiovanni Designs of Perth, Western Australia, presented a number of styling options for further development.
“ The exterior design of the vessel presented a challenge that needed an approach that was both innovative but also traditional. The challenge was to create a look that was both conventional so as not to alienate the vessel, but at the same time to showcase the vessel’s unique dynamic attributes.
Many profile options were prepared for the client and at the end of the process it was narrowed down to just three options. The option finally selected was the perfect choice with the correct balance and proportion.”
(Sam Sorgiovanni October 2005)
The third option was selected for the further refinement and 3D computer modeling.
This model, once mathematically faired, was sectioned and used for the basic of the superstructure frame design and section lofting.
Over the design duration, the 3D model was continually refined and updated to reflect the latest design detail.
The main deck features a substantial external area aft of the superstructure. The stowage of two tenders (18ft and 20ft), together with their launching cranes hidden in the deck-head above was a significant design challenge. In addition, the aft deck and swim platform had to be specifically set up for recreational fishing. Flush deck plates enable all the gear necessart to be rapidly assembled when fishing gets under way. The swim platform activities are served from a ‘dive room’ located under the aft deck. Fishing and diving gear are stored here alongside the dive compressors.
Twin staircase rise from the swim platform to the aft deck fish cleaning station. The centerpiece is an illuminated 1200L glass fronted live-fish tank to keep the catch of the day in pristine condition. Integrated into the fish tank unit are a pair of cold boxes located either side of the stairs.
A small bar area, sink external shower and day head complete the aft deck facilities. Access to the remainder of the 480m2 of Burmese teck clad external deck is provided via a sweeping aft stairway and midship stairs port and starboard.
The exterior styling created additional challenges for the deployment and retrieval of each tender. Detailed modeling of the launch process for both forward and aft tenders was done to ensure that the tenders would not clash with the structure.
FOREDECK TENDER LAUNCHING
The impressive sea keeping of the trimaran, with reduced pitching and little or no slamming forward, enables the foredeck to be safely utilized as a storage area for auxiliary water craft. In White Rabbit a 28ft Boston Whaler Conquest 275 (for game fishing), is neatly recessed here, together with three jet skis.The combination of high bulwarks, a large heavy main tender, and the requirement to keep the profile of the crane as low as possible in the stowed position necessitated careful engineering of the launching system.
A RIMS crane rated for 4.3 tonnes folds neatly beside the bulwark, with the Boston Whaler at full outreach, White Rabbit lists by less than 1 degree, allowing the tender to be launched and retrieved quickly by the crew in all reasonable weather conditions.
AFT DECK TENDER LAUNCHING
The side fashion plates complicated the launch process for the aft tenders. The solutions was to use a single point lift that enabled each tender to be rotated as it is maneuvered clear of the fashion plate. This lift was achieved using a single boom crane on each side of the vessel, mounted above the ceiling panels in the deck head.
Computer modeling confirmed that while clearance was tight, the process was feasible.
The sea trials confirmed that the aft tender launching system worked exactly as designed.