24m Crew Boat

Wright International Ltd is delighted to announce our latest addition to our already successful range of CREW BOATS. This boat has been designed and built specifically for a very valued customer of Wright International Ltd. Designed to carry 24 Passengers and six crew at speeds of up to 25 knots, this vessel answers most requirements for Crew Boats for offshore operations.

Powered by twin Caterpillar 3412E engines which has been designed with a cruising speed of around 18 knots and maximum speed of 25 knots. What has separated this vessel from all our other vessels is the attention to detail put in by our Naval Architect. As an example the power is transmitted through ZF 3000A gearboxes as the performance curve with this combination is exactly what our customer is looking for. The electronics have been kept simple but extremely functional as the twin Raymarine E120 fully incorporate Radar, GPS Plotter facility, Echo-sounder and CCTV allowing the Captain to know exactly what he wants from his high quality Norsap hydraulically dampened leather helm seat.

The crew accommodation area is accessed via a staircase from the passenger seating area and there is a staircase leading to the crew mess area. The air conditioned crew accommodation area contains 4 self contained cabins with bunks and lockers. A separate toilet shower cubicle with pressurised toilet, wash basin and shower. The main cargo deck is lined with 1.75” thick sapapura hardwood timber. The cargo deck has a minimum load carrying capacity of 20 tonnes.

Wright International Ltd can arrange for this vessel to be built for you in less than NINE MONTHS and all you have to is contact either Robert or Greig and leave the rest to Wright International Ltd.

Vessel Type:	Crew Boat
Builder:	Made in UK
Model:	24m Crew Boat
Price:	£1,750,000
Reference:	WIL 1673

enlarge picture	enlarge picture

Dimensions

LOA:	24m cm
Beam:	6m cm
Draft:	1m 20cm

enlarge picture

Engines

Machinery
The main propulsion machinery consists of twin diesel Caterpillar 3412E engines, each engine is separately served by its own filtered sea water connection for cooling purposes. The engines are fitted on strong bearers and mounted on vibration proof mountings. Drip trays are provided under each engine to provide 110% of all engine cooling and lubrication fluids. Good access is allowed around each engine unit to enable inspections, cleaning, routine maintenance and minor repairs to be performed.

The engines are started by keyed ignition switches mounted on the helmsman’s control panel. A single pole isolation switch is provided for each engine in the engine space to prevent accidental starting of the engines when work is being conducted on the units.

A clutch operated engine driven bilge pump is fitted, drawing from a bilge main and discharging overboard. The pump is also able to draw water from a filtered sea water supply to provide water for a fire and deck wash main.

The main engines are fitted with alternator units (engine maker supply) charging 4 12-volt batteries each, linked in series to provide a split 24-volt system, starter batteries/boat load batteries.

SPECIFICATION 3412E MARINE PROPULSION ENGINE

CATERPILLAR model 3412E DITA Marine Propulsion Engine having a Maximum Continuous “C” rating set at 1100 BHP when operating at 2300 RPM, arranged for heat exchanger cooling. The engine would be equipped as follows:

AIR INLET SYSTEM
Aftercooler core, corrosion resistant coated (air side)
Air cleaner, Light duty, open system
Air inlet shutoff

CONTROL SYSTEM
Electronic governor
Hydraulic Electronic Unit Injection (HEUI) fuel system
Electronic Control Module (ECM)

COOLING SYSTEM
Oil cooler
Thermostats and housing, Full open temperature 92 C (198 F), Outlet regulated
Jacket water pump, gear driven, centrifugal
Auxiliary sea water pump, Gear-driven, Centrifugal
Block heaters, one each side, 1500 watt, 120 volt AC, current draw 12.5 amps,
Heat exchanger, titanium plate with expansion tank
Coolant recovery system

EXHAUST SYSTEM
Manifold & Turbocharger, watercooled
130 mm (5.12 in) round flanged outlet

FLYWHEELS & FLYWHEEL HOUSINGS
Flywheel, SAE No. 1, 113 teeth
Flywheel housing, SAE No. 1
SAE standard rotation

FUEL SYSTEM
•Fuel filter, Duplex
•Fuel cooler, loose supply
•Fuel transfer pump
•Fuel priming pump
•Flexible fuel lines

INSTRUMENTATION
•Instrument panel: engine mounted
•Electronic service meter
•Start/stop switch
•Emergency stop button
•Maintenance due light
•Diagnostic light
•Warning light
•15A breakers
•Start motor magnetic switch
•8 hole panel
•Digital tachometer
•Engine oil pressure gauge
•Engine oil temperature gauge
•Engine water temperature gauge
•Fuel pressure gauge.

Instrument panel: wheelhouse (twin engine, twin helm station, total of four MPD panels)
Marine Power Display panel (MPD) Electronic display for monitoring engine and transmission parameters, features a fully graphic, positive LCD image screen that can be customized for three different users. Displays engine speed, percent load, boost pressure, coolant temperature, oil pressure and temperature, fuel rate, fuel pressure and temperature, transmission pressure and temperature, engine hours, and battery voltage using the J1939 data link.

Ignition and alarm panel: (one per engine, main helm position only) engine start switch, engine shutdown button, warning and diagnostic lamps

ZF Smart Command Control System: twin engine, twin helm station

LUBE SYSTEM
Dual wall oil lines
Crankcase breather
Oil filter,
Oil filler in valve cover
Dipstick,
Shallow centre sump oil pan

MOUNTING SYSTEM
Front support – adjustable
Rear Supports
Anti Vibration Mounts – four point mounting (six point mounting at additional cost)

PROTECTION SYSTEM
Electronic - 24 Volt only

STARTING & CHARGING SYSTEM
24V 60A Charging alternator
24V Electric starter motor

TRANSMISSION
ZF3000A 2.520:1 Ratio, Supershift functions, GL Design Approval Cert

GENERAL
Vibration damper
Lifting eyes
Literature
Engine
Engine GL Certificate
Transmission GL Design Approval Certificate
Engines
Twin Caterpillar 3412E engines, 1100hp @ 2300 rpm with ZF3000A gearboxes.
Maximum Speed in excess of 20 knots
Cruising Speed 15 - 18 knots

Electrical Distribution
24 volt electrical power for engine starting, wheelhouse navigation equipment and emergency lighting is supplied from battery sets housed in the engine space and appropriately ventilated.
High voltage electrical distribution for air conditioning, lighting, refrigeration, cooking etc is supplied by two Caterpillar C4.4 Marine Generator Sets situated in the engine room. Each generator is capable of powering the entire vessel's electrical needs independently.
Essential/emergency services are distributed through a separate board for automatic operation of the electric bilge pumps and fire detection alarm system. The main distribution supply is through breaker switches.

SPECIFICATION C4.4 MARINE GENERATOR SET

CATERPILLAR model C4.4 Marine Generator Set having a 51ekW rating and giving a
220 volts, 3 phase 50 Hz supply when operating at 1500 rpm, arranged for heat exchanger cooling. The set would be equipped as follows:

AIR INLET SYSTEM
Air cleaner, single element canister type with service indicator and rain cap.
Dry insulated turbocharger
Glowplug cold start system

COOLING SYSTEM
Heat exchanger cooled, Cupro-nickel tube bundle (Sized for 50°C amb. air & 32°C sea water)
De-aeration expansion tank
Plate type engine oil cooler
Gear driven centrifugal jacket water pump
Gear driven self priming sea water pump

EXHAUST SYSTEM
Dry insulated turbocharger
Water-cooled exhaust manifolds
Wet exhaust elbow, 100 degree elbow provides 10 degree down angle

FUEL SYSTEM
Primary fuel filter/water separator
Secondary fuel filter (LH)
Fuel priming pump electric
Energize to run shutoff solenoid
Flex fuel lines, BSP connectors

GENERATORS
12 lead reconnectable
3 phase,
Delta Lead Connection
Brushless
Separately excited from auxiliary winding to provide 300% short circuit current up to 10 seconds
2/3 Pitch
Broad voltage band
IP23 water protection
Solid state voltage regulator with integral voltage adjustment potentiometer
Class H insulation
Connection poles

GOVERNING SYSTEM
Electronic governor

INSTRUMENTATION
Premium Control Panel: rear mounted Electromechanical control panel including meters for operating hours, oil pressure, coolant temperature, DC volts, and Off / Manual / Auto control switch. Includes shutdowns with indicating lights for low oil pressure, high coolant temperature, overspeed, emergency stop, and fail to start. Provides preheat function, generator running light, remote start disabled light, common alarm / shutdown light, alarm & silence switch, and volt free contacts (common alarm / shutdown, & generator running). AC meters (volts, amps, phase selector switch, & frequency / tachometer meters), Cycle cranking, Pre-Alarms for low oil pressure and high coolant temperature, Shutdown for overcrank.
Remote start/stop panel plus 25ft harness

LUBE SYSTEM
Lubricating oil
Oil filter (LH)
Dipstick (LH)
Fumes disposal (closed system)

MOUNTING SYSTEM
Steel base frame with drip pan
Anti-vibration mounts

STARTING/CHARGING SYSTEM
Negative isolated ground electric system
24V Charging alternator
24V Electric starter motor

GENERAL
Single side service (LH)
Literature
Paint – CAT Yellow

Fuel Tanks
Two aluminium fuel tanks hold a total of 5,500 litres, emergency shut off valves, fitted at the tank outlets, are operated from the helm position.
Duplex fuel filters (changeover type) are fitted to each supply
Tanks are well baffled and fitted with inspection covers and sight gauges.
The tanks are filled via water tight, flush deck connections.

Fire Detection and Extinguishers
A smoke detection system is provided in the engine space with control and alarm panel in the wheelhouse. A remotely operated extinguisher system is installed.

Ventilation
Ventilation to all compartments conforms to the space requirements appropriate closures are fitted to all openings.

Bilge Pumps and Alarms
The main engine driven pump is capable of discharging all spaces via the bilge main, additionally float switch operated electric bilge pumps are fitted in each main compartment. All discharges are above the water line. High-level alarms are included with indicators in the wheelhouse.
Additional hand pumps connects to the bilge main as a back-up system.

Exhausts
Exhausts are fitted in accordance with the manufacturers requirements and positioned to avoid exhaust gases entering the accommodation spaces at all times. Silencers are also fitted to reduce sound to an absolute minimum. Watercooled elbows with outlets to the sides of the vessel.

Fresh Water Supply
7,500 litres (potable water) in approved tanks, this supply is connected to a pressurised system via a calorifier.

Waste Water System
The WC's are linked via a pressurised air system to a black water tank of 2,500 litre capacity with connections to suit a truck mounted vacuum tanker.

No. of Engines:	2
Fuel:	Diesel
Drive:	Shaft Drive
Fuel Capacity:	5500 Litres
Water Capacity:	7500 Litres

Construction

Wright International Ltd is delighted to be able to manufacture these super 24m CREW BOATS in aluminium and to have the full infrastructure of naval Architect and yard to build them in less than NINE MONTHS from date of order.
IMO

IMO certificate and technical file available at extra cost, if required.
•If class approvals are required on the C4.4 genset then the price will increase per engine and specification will be subject to change.
•C4.4 gensets are not available factory set for parallel operation. If this is required modification can be arranged but will be at additional cost.

TERMS
Also the stage payments for the construction of these 24m CREW BOATS are as follows: -
•10% with order
•20% approval of drawings
•25% completion of structural completion main deck beams etc
•25% installation of engines
•20% after sea trials

Painting
The main hull to be sprayed in colours of customer's choice.
The lower hull is in anti-foul with appropriate water-line mark.
The painting scheme and anti-fouling, including all the preparation is as recommended and specified by an approved marine paint supplier.

Manuals
Operating and service manuals are provided as recommended by the engine builders and suppliers of all relevant machinery. In addition, stability manuals, safety manuals and information are provided. Two (2) full sets of electrical drawings and general arrangement drawings are provided together with electronic copies.

Trials
The Builders trials are carried out on completion of the vessel, the engine manufacturer's engineer will be in attendance. The sea trials will include:
Speed trials over a measured mile to establish top speed.
Manoeuvring trials for main steering and standby systems.
Approved inclining experiment
Systems trials for all installed machinery and equipment
Endurance trial to run the vessel over a number of conditions for a time to exceed 4 hours.
Compass adjustment
All trials are to be carried out with validation by the engine manufacturer's engineer, the trial condition shall be with 100% tanks at commencement and full crew complement or ballast as approved by the engineer.

Spares
Provided as standard:
Main propulsion machinery :
Spare parts kit as recommended by engine builders.

Stern Gear :
2 x propellers
Spare stern gland seals for shafts and rudders.

Electrical :
1 complete set of light bulbs and fuses.

Hull Material:

Aluminium

Accomodation

Wheelhouse
Access to the wheelhouse from the main cargo deck is via a ladder to the coach roof through either the port or starboard wheelhouse doors. The coach roof has 1m hand rails and has liferafts and cradles mounted in this area. There is also a staircase leading to the passenger seating area.

The air conditioned wheelhouse is of a lantern style with pilot style windows in the roof and is elevated above the top deck to give excellent all round visibility. It is equipped with two helmsman positions both with a high quality Norsap hydraulically dampened leather helm seat. Wheelhouse lighting for both day and night operations.

The windows servicing both helm positions are fitted with synchronised wipers, washers and all the wheelhouse windows are fitted with blinds.
The central steering positions fore and aft are equipped with hydraulic joy stick steering, fly by wire gear and throttle controls and on the master console main engine control panels, master light distribution panel and a chart table.

Twin Raymarine E120 Navigation suites interfaced with Radar, GPS Plotter facility, Echo-sounder, 2 x CCTV monitoring station and Auto-pilot. ICOM M603 VHF radio which includes haler, intercom and public address system and magnetic compass.

All navigation equipment antennae are mounted on a stainless steel gantry on the wheelhouse roof.

Passenger Seating Area
Access to the air conditioned passenger seating area is from either the starboard door or aft central door from the cargo deck.
The seating area is configured in 2 rows of 3 seats wide with a central isle. This seating is of aircraft style in smooth vinyl finish in a plain colour. The upright seat backs are fitted with fold down trays, storage nets, folding arm rests and seat belts (this is required should the vessel operate in excess of 20 knots).

A life jacket is stored with each seat. A dedicated passenger toilet cubicle with pressurised toilet and wash basin is located to the rear of the seating area on the port side. The passenger seating area is illuminated by flush mounted recessed ceiling lighting. Ceilings and walls are smooth finish with high density foam insulation core. All windows on this deck are reflective glass and non opening. Industrial flooring is used with aircraft style LED emergency lighting throughout. Through doors there are staircases leading to the wheelhouse and crew mess area.

Crew Mess Area
Access to the crew mess area is via a staircase from the passenger seating area. The air conditioned crew mess area has a seating area with table and fully equipped galley area with standard appliances and stores. Ceilings and walls are smooth finish with high density foam insulation core. This area is illuminated by flush mounted recessed ceiling lighting. Industrial flooring is used with aircraft style LED emergency lighting throughout.

Crew Accommodation
The crew accommodation area is accessed via a staircase from the passenger seating area and there is a staircase leading to the crew mess area. The air conditioned crew accommodation area contains 4 self contained cabins with bunks and lockers. A separate toilet shower cubicle with pressurised toilet, wash basin and shower. There is also a store area. There is a watertight door leading to the control room in the main engine space.

Cargo Deck Area
The main cargo deck is lined with 1.75” thick sapapura hardwood timber. The cargo deck has a minimum load carrying capacity of 20 tonnes.

Engine control room
An air conditioned engine control room with a watertight door to the main engine room and glazed windows to the engine space. This room contains monitoring and control systems for both main engines, generators and air conditioning.

Engine Space
Access to the engine space is from the control room with escape hatch to the main deck. Ventilation is via vents in the deck house sides which are ducted internally to maximise watertight integrity at extreme heel angles. Vent area is adequate for the needs of machinery and personnel and include electrical blower units.

Fore Peak
The fore peak houses the main anchor and chain.

Lighting
Search light and deck lighting is provided by suitably distributed 24 volt lights with separate switches. The switches are located in the wheelhouse in a light switch console together with all other lighting circuits that need to be controlled from the wheelhouse to avoid interference with visibility when navigating during the hours of darkness.
The wheelhouse is lit by suitable lights with additional red lights for night-time use. Engine space and other compartment lighting is switched near the compartment entrance.

Navigation lights are supplied from the 24-volt system and switched from the wheelhouse light control console suitable for this length of vessel. The external fittings are connected through watertight plugs and sockets and are as follows:

•1 x Masthead Light
•1 x each Port & Starboard Light
•1 x Stern Light
•1 x Anchor Light
•6 x Deck Floodlights
•1 x Remote Electric Control Searchlight

Navigation Equipment

Twin Raymarine E120 Navigation suites interfaced with Radar, GPS Plotter facility, Echo-sounder

2 x CCTV monitoring station and Auto-pilot.

ICOM M603 VHF radio which includes haler, intercom and public address system and magnetic compass.

All navigation equipment antennae are mounted on a stainless steel gantry on the wheelhouse roof.

Safety Equipment

LSA Equipment
Complete Life Saving Appliance inventory to UK Class VI Passenger Ship requirements including six 20 man SOLAS A Pack liferafts conveniently located.

Disclaimer

The details of this vessel is offered in good faith but cannot be guaranteed. Nor can we warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.