21m Highspeed GRP catamaran 

SPECIFICATIONS

Length Overall - 21.0 metres

Length Waterline - 20.4 metres

Beam - 7.2 metres

Draught - 9.8 metres

Engine - 2 x 900hp

Propulsion - 2 x Shaft drive

Fuel Capacity - 3800 litres

Fresh Water Capacity - 215 litres

Grey Water Capacity - 215 litres

Black Water Capacity - 430 litres

Maximum Speed - 23 knots

Cruise Speed -14 knots

Range - 550nm (at 14knots)

Hull Description

An estimated - 423.29m2 infused fibreglass Foam Core Sandwich construction Catamaran semi-displacement hull

Superstructure

An estimated 750.06m2 infused fibreglass Foam core sandwichconstruction. Fully enclosed air conditioned cabin

Seating capacity

options including upper deck - 80 seat business class to 150 seat

economy class passenger seating + 2 Crew

Heads - 2 x Toilets

 

Exterior

The exterior of the vessel is designed to be as aerodynamically streamlined and hydro dynamically efficient as possible with ergonomically integrated features to make daily use as straightforward as possible.Light weight design Deck and Super structure is also full infusion layup GRP construction. It add stiffeners to keep it free from twisting and it is bonded with interior walls or liner to give more stability.

Sheltered rear deck embarkment area with ample wheelchair access will enable passengers to easily move in and out of the cabin in all weather conditions, when both boarding and leaving the vessel.Toughen windshield is not only to give wider view of the ocean it also added feature to the strength and beauty of the boat structure.Radar mast is full GRP construction infusion layup. Standard stainless steel railings for aft deck. Cleats are also included. 100mm x 60mm heavy duty rubber fender installed.

 

Interior

Large vertical glass surfaces draw natural light into a clean and simple open cabin space. Two aisles between the seats will allow convenient and comfortable seating, also boasting quick turnarounds at each ferry stop.Access is uninterrupted from entry up until the crew area at the front of the cabin, after which there is a dedicated space for the captain to pilot the vessel and control all electrics from a panel located close to the steering console.An approximate area of full fibre glass lamination of 1,173.35m2.

Engine & Propulsion

Twin engines are installed in this vessel, complete with a gearbox to enable forward and reverse rotation of the propulsion system. The engines will be primarily controlled from the helm station, however there will also be remote fuel shut off valves and emergency stop control directly mounted on the engine.

 

Fuel Tanks

Fuel storage on board will consist of permanently installed tanks in both hulls of the catamaran. The tanks will be subdivided by anti-sloshing baffles, and will be complete with deck fill, breather vent, level gauges, valves and piping to all engines in the vessel. The four tanks will be interconnected with transfer actuated by pumps on each side. This complete system will be pressure tested according to

classification requirements.

Remote and manually operated fuel safety shut off valves are situated between the fuel tank and each engine. This remote shut off control system along with the fuel level indicator/alarms are situated in the helm station on the top deck.

 

Exhaust

For both the main propulsion engines and auxiliary generator engines exhaust of hot waste gases will be combined with the exhaust cooling sea water in the form of a mixed wet-exhaust system, complete with a waterlock/muffler to reduce noise output. These exhausts will exit the vessel above the waterline in the most efficient configuration to minimise backpressure on the engines.Class approved flexible reinforced rubber hose will be used to transport the gases/water from the engines to the stainless steel skin fittings, which are mounted above the waterline and feature a mechanism to prevent back flushing of sea water from waves.

Auxiliary Generators

The vessel will include two main auxiliary generators powered by diesel engines, located in the main engine rooms.Generators will be installed on vibration dampening mounts, within manufacturer-supplied sound boxes to minimise the noise and vibrations from these units.

 

Engine Room Ventilation & Extraction

The engine room will be provided will forced inducted ventilation and extraction by means of fans/extractors. The fan's capacity will be adequate for the main engine room's air consumption requirements and to grant, at maximum engine rpm, an inside-outside maximum temperature rise not exceeding 15°C. Ventilation will be guaranteed by air intakes on the sides of the superstructures, with fire dampers that will automatically close in case of fire.

 

Fresh Water

A single fresh water tank will be installed on one side of the catamaran, below the main deck and forward of the engine bay bulkhead. This tank will have a deck filler tube, breather valves, tank level indicator, and a pump to provide pressure to feed the fresh water systems throughout the vessel.

Air Conditioning

Comprised of a complete chiller system. Chillers are located below deck, feeding chilled water to above-deck air handlers distributed throughout the vessel. Air handlers are located in key locations to ensure a consistent feed and recirculation of cool air. This will provide fast and efficient cooling throughout the cabin of the vessel to achieve and maintain a comfortable environment during service.

 

Grey & Black Water

One grey and two black water tanks will be installed; grey water tank opposite the fresh water tank and one black tank in each port and starboard side.These tanks will both feature deck accessible waste removal piping, breather valve, tank level indicator and remote controlled sea-purge, gravity run or with supplemental pump if required.

 

Fire Fighting

The fire fighting plant will consist of separated fixed and portable systems complying with the RINArules. A fire control station will be installed in the superstructure from which is will be possible to

activate the engine room fire extinguisher, along with the remote fuel supply cut off. The entire vessel will be monitored by smoke and heat detectors, supplemented by a visual and acoustic alarms panel.

 

Fixed Fire Fighting System

The engine room will be provided with a CO2 fire fighting system. The system located in the engine room will consist of necessary bottles connected to a manifold complete with nozzles and the box will

vent to the atmosphere. The activation of the system from the outside station, will activate the siren, stop the fans, close the fire shutters and cut off the fuel lines. After approximately 30 seconds, the plant will discharge the CO2 into the engine rooms to quench the fire.

 

Extinguishers — Handheld

A number of portable extinguishers corresponding to classification requirements will be installed in various easy to access compartments.

 

General Electrical

A bank of batteries in conjunction with two auxiliary generators will supply the electrical power for all of the systems onboard. Marine specific 12 volt batteries will be attached in both parallel and series in order to obtain a stable 24 volts, which will both power (starter motor) and be replenished (alternator) by the main diesel inboard engines used for propulsion. These batteries will then be used for every electrical system in the vessel, from lights to navigation, with the exception of the 230V air conditioning.The auxiliary generators will provide a power of 230 volts of single-phase, 50Hz electrical power to supply the high requirements of the air conditioning compressor and associated water pumps, battery chargers, in addition to the domestic 230-volt items on board.Between these two systems, the vessel will be electrically self-sufficient during operation at sea. Electrical power activation, distribution and monitoring will be controlled from the main electrical switchboard located in the cabin of the helm station. The addition of a shore-power line will also be included to provide power to mass battery chargers, which will condition and charge the batteries when the boat is not in use.

 

Operating Voltages

230V / 50Hz for Audio Visual and Air Conditioning Systems

24V DC for lighting, signalling and electronic instruments / alarms

 

Electrical Generators

In its varying working conditions, the ferries' electrical power will be provided by generators supplying the air conditioning at 230V and charging various batteries by means of automatic / manual rectifiers.

 

Batteries and Rectifiers

The batteries will be installed inside isolated and ventilated containers

 

Main Switchboard

The switchboard, positioned inside the helm station, will be in aluminium with a bar frame welded in. Panels will be demountable, as necessary, to facilitate access and to every part of the switchboard. Suitable insulated handrails will be fitted on the front of the switchboard.

 

230V AC & 24v DC Utility Circuits

Electricity for shipboard and engine room services will be supplied directly from the main switchboard and secondary control panel via thermal-magnetic protection switches. Where necessary; remote starters with weatherproof box and low voltage auxiliary control circuits will be installed. The panel will be fitted with warning lights indicating on line and running voltages, with respective control buttons.

Helm Station

The helm station is located forward of the cabin, separated from guests. All navigation, steering and main electrical controls will be situated on easily accessible panels within this area on a custom made console. There will be two seats, forward facing with good all-round visibility, and a central dashboard for the steering, throttle, communication and navigation controls.

 

The controls dashboard will compose of:

• Steering wheel

• Engine throttle

• Engines rpm indicator

• Engine start/stop control

• Rudder angle indicator

• Fuel / Water tank level indicators

• Two (2) independent VHF with distress button (optional)

• One (1) magnetic compass

• Chart plotter with radar overlay 12" display (optional)

• Depth sounder fore / aft with 50kHz and 200 kHz transducer and independent display (optional)

• MS (optional)

 

Rescue

• One (1) Epib 406MHz (optional)

• One (1) Radar Transponder SART 9GHz (optional)

 

Steering

• Standard power steering and throttle positioned at the helm station.

 

Windshield Wipers

Windshield wipers will be fitted to the main helm station windows. A suitable control panel will be fitted from which time regulation and continuous wiper speed control will be possible.

 

Horn

There will be compressed-air fed warning with electrical control from the helm station. A suitable control panel will be provided on the dashboard, where it will be possible to select the settings

necessary for navigational safety requirements.

 

Liferaft & Safety Equipment (Optional)

Two liferafts will be mounted on the aft deck of the vessel, capable of manual deployment in the event of an emergency. Life rings and throw lines will also be mounted on exterior grab rails in key locations, unobstructed and easily removed in the event of a man overboard.