New WB 10.70m LimoTender features advanced technological movable deckhouse

by Wooden Boats 13 May 2021 08:13 PDT

Wooden Boats is no stranger to challenges. With its vocation of combining elegant design with efficient engineering and performance as its starting point, it has created the new WB 10.70 m LimoTender.

Total height of tender with lowered deckhouse: 1.80 m
Internal height with raised deckhouse: 1.80 m
The project is by Marco Arnaboldi, owner of Wooden Boats
Exterior and interior design by Giorgio Cassetta

The tender's distinguishing feature is the movable deckhouse, which is necessary for it to be comfortably stowed in the garage of the superyacht that houses it.

The American owner who commissioned the WB 10.70 m LimoTender had no doubts: after appreciating the WB14 built for the Benetti shipyard, they wanted as similar a tender as possible for their 100 m megayacht. But the sheer size of the garage presented the boutique shipyard in Viareggio with a truly complex challenge, which its owner and founder, engineer Marco Arnaboldi, rose to with determination.

WB 10.70m LimoTender - photo © Wooden Boats

"We didn't just stick to the mandatory dimensions in height and, of course, length," explains the engineer from Viareggio. "In addition to the four electromechanical actuators that allow the deckhouse to be raised and lowered, complemented by a safety catch to ensure safe navigation, the WB 10.70 m LimoTender is also equipped with internal jacks to raise it during hauling operations, thus avoiding the classic cables and heavy external hooks that are very dangerous in rough sea conditions. The aesthetics of the garage, with two simple arms, improve as a result, and operations are safer and more practical."

The WB 10.70 m LimoTender is 10.70 m long, 3 m wide and the overall height with a lowered deckhouse is 1.80 m, the same measure that her guests can enjoy inside once the deckhouse is raised. It can hold 14 people and four crew members in all.

"The owner asked for an enclosed tender to avoid problems in case of bad weather or rough seas," continues Arnaboldi. "The designer Giorgio Cassetta has therefore studied a very tapered profile which guarantees 360 degrees internal visibility thanks to the vertical windows all around the perimeter of the square, the same windows that descend along the side when the tender is closed; all this is completed by a large skylight. Inside, there are sofas around the perimeter to accommodate up to 14 people, equipped with foldaway armrests as on the most exclusive cars. There are no tables in the centre and all functions can be controlled through the domotics system, from air conditioning to lighting. The choice of furnishing materials and the hull and deck colours match those of the mothership, with extensive use of solid teak on the exterior."

The outfitting of the WB 10.70 m LimoTender has already started in the Viareggio shipyard and includes the construction of the refined carbon composite/PVC foam sandwich that characterises all the tenders made by Wooden Boats. The tender is powered by two Volvo Penta D3 diesel engines (220 hp each) with stern drive, capable of a top speed of 35 knots and a cruising speed of 25 knots, with a range of 200 nautical miles. Delivery is scheduled for spring 2022.

WB 10.70m LimoTender - photo © Wooden Boats

Technical Specification

Main dimensions (approx.):

LOA: 10.70 m
Beam Max: 3 m
Design displacement light ship: abt 6t
Design draught @ full load: abt 0.6 m (excl. sterndrive)
Storage Height (roof down): 1.85 m

Main technical data:

Construction Material: GRP Carbon fiber reinforced
Classification: CE cat. C
Accommodation for Owner and Guests: 14
Accommodation for Crew and Staff: 4
Propulsion: Inboard Diesel - Sterndrive
Main Engine: 2x Volvo Penta 220hp or Similar
Transmission Sterndrive + Trim Tabs
Maximum and Cruising Speed @ Full Load: 35 / 25 kn
Nautical range: ab. 200 n.m. @ 25 kn
Fuel Capacity: 600 l
Fresh Water Capacity: 150 l
Naval architect Studio Arnaboldi

Hull and deck structure:

Hull, deck and roof: Vinylester resin; glass fiber (eventually carbon reinforced)/PVC foam sandwich with local reinforcement
Bulkheads and longitudinal girders: PVC/glass fibers
All bonding made with structural adhesives

Engine and propulsion:

2x Volvo Penta D3 220hp or similar
Racor fuel filter and separator, remote shut off valve, 600 liters aluminum alloy / SS fuel tank with 60 liters reserve, fuel gauges on cockpit.
Engine control panel, fuel and cooling water gauges and throttle on cockpit
Mirror polished stainless steel wheel, hydraulic drive
Ventilation with electric extractor, thermostatic start management and delayed switch off; AISI 316L, mirror polished stainless steel air intakes
Engine compartment sound insulation with perforated aluminum panels finishing; heat insulation/ sound deadening with foam sandwich.
Automatic/manual fire extinguisher in the engine bay
Light in engine bay
Electro-hydraulic trim tabs, with control and indicators on cockpit
Electric bow-thruster 55kgf/12V Craftsman Marine

Exterior finish and equipment:

6/8mm glass windows. In any case windows and skylights to be treated with UV filters layer
Helm station aft of guest accommodation
Polyurethane, high gloss varnish, full painted hull and deckhouse (AWL GRIP paint cycle in Stark White + Teal + Super Jet Black depending on final styling)
International Micron 77 anti fouling
6 mm thick, 56mm wide, natural solid teak laid decks (bow deck and aft cockpit)
AISI 316L mirror polished, stainless steel removable handrails, flag pole and jackstaff
AISI 316L, mirror polished stainless-steel Pop-out Swimming Ladder (manual)
6 AISI 316L mirror polished mooring cleats
AISI 316L mirror polished stainless steel cutwater
Hidden anchor in bow stem and electric windlass
Wrap-around hard rubber fender
8 fender hooks per side
LED Deck spotlights
LED Navigation lights (to be positioned ergonomically in respect of the driver's view)
LED bow search lights (headlights)
2 LED Stern Underwater Lights (or under beach platform, to be confirmed)
All-round LED maneuvering lights
3x Stainless steel backlit polished Mother yacht logo and name on both sides and aft
All lights to be RGB tunable
Hand shower in beach platform
Crew seats with faux-leather upholstery; storage below
Instruments cover
Air horn
Reinforced towing eyes with bridle

Technical equipment:

Mastervolt automatic battery charger, 110-220v shore power line
Automatic bilge pumps as appropriate with buzzer alarm and additional flying hose
One manual hand bilge pump
Polyethylene Fresh Water Tank with pressure pump, automatic switch off, level gauge on cockpit,
3 x 12V - 135A AGM interchangeable service and engine batteries as appropriate
Circuits protection by thermal circuit breaker or fuses
A/C station, 20.000 BTU compressor in engine bay
Cathodic protection (anodes)

Electronics/Navigation:

Magnetic compass
Chart plotter RAYMARINE E12 with sounder and digital switching on main circuits
AIS
Tender tracking opt.
Full switch redundancy on navigation systems circuits
Independent emergency towing light
VHF RAYMARINE 49E or equivalent
Backlit electrical switches and panels
All console instrument lighting to be dimmable

Interior finish and equipment:

Interior to be easily converted from 6-8 single seats "vip" configuration to 16 seats double bench, stoarge under seats, layout by means of pop-down armrests
Webasto glass moonroof
Side sliding glass access door
Teak laid floor with draining.
Leather or high quality faux leather / fabric upholstery.
Roof interior to be upholstered with Alcantara or equivalent or high quality faux leather. GRP visible structures and panels to be painted with high quality paint.
Indirect lighting with LED strips to be provided both on roof and at floor level, independently operated
Direct lighting to be provided with 8-10 low profile LED ceiling spots
All lighting to be RGB tunable
At least two pop-down backrests per side that change to cup holders and/or work tables
Six speakers or more audio system with FM radio, lighting dock, Bluetooth, audio in. Audio system to be particularly powerful. Control from both inside and outside.
Storage space under seats
Glassware storage cabinet
Vitifrigo DW70 - 100 or similar SS fridge
Four usb ports for personal device charging
Umbrella locker for four umbrellas with drainage and ventilation
Hidden lifting ringbolts with certified SWL
Cold air outlets in forward and aft cabinetry
Sound insulation between cabin and helm station (to reduce driver's distraction)
A luggage storage of at least 600l must be designed