Newly launched DONA FRANCISCA Yacht by Astillero Buquebus and Soto Acebal

Beautifully designed by Soto Acebal, the majestic 52,5-metre sailing yacht Dona ...

Newly launched DONA FRANCISCA Yacht by Astillero Buquebus and Soto Acebal

February 26, 2014

Written by Zuzana Bednarova

Beautifully designed by Soto Acebal, the majestic 52,5-metre sailing yacht Dona Francisca has been recently launched by Astillero Buquebus from Uruguay. Intended for hard cruising, superyacht Dona Francisca is not only strongly rigged and masted, but also sturdily built.

Luxury Schooner Dona Francisca by Astillero Buquebus and Soto Acebal NA

Luxury Schooner Dona Francisca by Astillero Buquebus and Soto Acebal NA - Image courtesy of Soto Acebal NA

The lines of luxury yacht Dona Francisca are those of a fast yet very weatherly cruiser, below the waterline there is Acebal racing boats heritage and above the water level their deepest respect to aesthetics and naval architecture of the past. This boat is not a past replica but brings up aesthetics elements from the golden Era of yachting that have been carefully studied, processed and redesigned to produce a unique actual vessel.

Superyacht Dona Francisca

Superyacht Dona Francisca - Image courtesy of Soto Acebal NA

It was important in Acebal’s aesthetic search to analyse the earlier British cutters, with their vertical stem posts, narrow hulls, and bowsprits, painted dark and above all fast and exceptionally seaworthy. ‘Mosquito’ (1848) was a nice example but as many vessels of that period were designed according to Scott Russell’s wave line theory, a problem was a lack of volume forward.

Luxury Schooner Dona Francisca

Luxury Schooner Dona Francisca - Image courtesy of Soto Acebal NA

After CDF analysis, Acebal went for a bow zone with plenty of volume and powerful ‘shoulders’. Their prismatic is high; they know the Dona Francisca yacht will be fast so lines are according to the real speeds she will show. Firm buttocks, easy diagonals, and waterlines yet no hard bilges all combined make a sweet set of lines with high speed potentiality.

Dona Francisca Yacht - Interior

Dona Francisca Yacht - Interior - Image courtesy of Soto Acebal NA

Dona Francisca superyacht is the biggest sailing boat built in carbon in America, ever. Carbon was the material chosen for her construction, among the benefits of this material is to increase the ballast/displacement ratio, more tended in this case to increase ballast than to reduce displacement.

Superyacht Dona Francisca - Saloon

Superyacht Dona Francisca - Saloon - Image courtesy of Soto Acebal NA

The process for lamination was after lots of test decided to be by resin infusion, being the largest epoxy infusion already done. After the process the samples tested did shown excellent mechanical properties and best than expected fibber ­resin ratios.

All structural members are laminated in epoxy carbon layup ending with a light and stiff structure, the result is a big amount of ballast to be located in the 70 tons bulb.

52.5m superyacht Dona Francisca by Astillero Buquebus and Javier Soto Acebal

52.5m superyacht Dona Francisca by Astillero Buquebus and Javier Soto Acebal - Image courtesy of Soto Acebal NA

It was requested that the Dona Francisca yacht must be capable to sail in shallow waters, the River Plate included. So design draft was fixed at 3.60m, a real challenge to the Naval Architect. A hollowed high tensile steel strut was precisely engineered saving weights that are aggressively added to the bulb. Finally the keel is of the ‘T’ type with very low center of gravity helping in sustaining all her sail plan.

Sail area is divided into a snug and strong schooner rig, which makes her look very seaworthy and workmanlike. Mast and standing rigging will be of carbon, helping in the lowering of the center of gravity. It was decided to use roller furling for booms and foresails; reduced crew usage is a design target present all along the full project. The deck arrangement will show an intention to reduce visual elements, as far as a proper function allows.

Dona Francisca Yacht on the water

Dona Francisca Yacht on the water - Image courtesy of Soto Acebal NA

Houses and skylights are kept to a minimum; Acebal feel that increasing the teak flat surface areas aesthetics are improved. In the same thinking hardware elements were reduced with carefully analysis. Most hardware is in bronze. The main goal of this is to avoid stainless steel shining, and create a pleasant atmosphere. The teak layout has been trimmed by mahogany trims and planks properly located to create a nice balance between bare and shinny dark reddish woods.

Down below there is a classic Edwardian style interior with a mix of Honduras mahogany and white  paneling. Owner’s cabin if aft of the deckhouse, separated and independent with an adjacent fully operative office.

Luxury sailing yacht Dona Francisca

Luxury sailing yacht Dona Francisca - Image courtesy of Soto Acebal NA

Forward of the deckhouse is the saloon which extending the whole width, is spacious and airy. There is a living zone on port and opposite is the dinner room, with a table for ten persons. Following through a corridor is an accommodation zone with three guest cabins, all with their bathrooms en suite. Next forward is the galley and crew mess area, with a companionway entrance.

Captain in on starboard and there are two crew cabins in the forward end of the interior arrangement. Forepeak and lazarette are bigger than normally seen on these boats; Acebal foresee this will be much appreciated when this Schooner turns from stationary to real life service.

MAIN DATA OF DONA FRANCISCA YACHT:

LOA 52.55 M.
LOD 45.80 M.
LWL 39.00 M.
BEAM 8.60 M.
DRAFT 3.60 M.
DISPLACEMENT: 210 TONS.
BALLAST: 82 TONS.
SAIL AREA: 1100 M^2
MAINSAIL: 396 M^2
SCHOONER MAINSAIL: 334 M^2
JIB: 254 M^2
GENOA: 424 M^2
MAIN ENGINE: Caterpillar C18 ­ 873 hp.
TRANSMISSION: Hundested CPG­32 variable pitch.
GEN SETS: 2 x Caterpillar C4.4 50kVA.
DESIGN AND ENGINEERING: SOTO ACEBAL NAVAL ARCHITECTS
INTERIOR DESIGN: SOTO ACEBAL NAVAL ARCHITECTS
BUILDER: ASTILLERO BUQUEBUS, URUGUAY

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