NEW BUILD – Blyth 12m Series ( ID:588087 )





TEL: +44 7798 607 323 


MAKE:   Blyth 12m Catamaran


YEAR:   New Build


BUILDER:   Blyth Workcats


LOA:   12.50m
BEAM:   4.96m
DRAFT:   0.86m
LOCATION:   Ex. Factory




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The Blyth 12m Catamaran is constructed to meet the structural and fit out requirements of the MCA's Code of Practice category 2 12+2 . The Blyth 12m provides a very wide range of potential uses and will easily meet your requirement for a genuine multi role. With the Twin Iveco 450 derated to 420hp the 12m Blyth Cat is expected to reach a top speed of 24kts and a cruising speed of about 18kts. 

Blyth Workcats are built entirely in the UK from one piece tooling for exceptional strength. All engineering and electronics are installed by in-house engineers and stainless steel fittings are custom made within their own fabrication workshop, offering a completely bespoke service to our clients.



Base Hull with stringers

All ply bulkheads, deck supports (transverse and longitudinal),

deck support timbers bonded into hull and crash tanks

Plydecks fitted and sheaved

Non-slip finish applied to deck and coated in polyester

Flo coat to all GRP surfaces of mouldings

Engine GRP vent boxes pair - through bulwark

Freeman deck hatches and surrounds x4

Engine hatches and surrounds per pair

Aft deck combing

Forward deck combing (not required with full deck) 1m of deck

Cut out scupper and gel exposed glass fibre edges


Hull and deck fittings / work

Door in transom for dive lift

Door in Port & Stbd gunwhale

Supply and fit stainless steel boarding ladder

AntifoulEnclose bilges under engines

Gel below gunwales from deck to combing

Make each aft compartment watertight in respect of aft engine bay bulkhead

Fire retardant gelcoat to engine bays (grey)

Supply and fit 4" D rubber fendering

Rails supplied ex foredeck rails (for Island wheel house)

Small stemhead fitting with stainless roller

Supply and fit spring cleats pair

Supply and fit 2 stainless steel bollards fwd and 2 aft

Supply and fit engine sound insulation to engine hatch lids



Wheel house std (11'x 8') open sides extended aft

8' roof extension aft

Enclose aft section with rear bulkhead and marine door (no sill but gap under door to allow drainage)

Supply and fit helm unit in grey laminate teak capped prices from

Supply and fit bench seating in open plan aft wheelhouse

Supply simple galley in grey formica teak capped

Lining to wheel house - sides only in cord - note passenger space to be gelled only

Lining to wheel house roof in foam-backed vinyl - note passenger space to be gelled only

Toilet unit shell fabrication, including door,

Forward structure floor in each fwd hull

Windows supplied and fitted with one access door

Pilot Helm Seat supplied + fit on GRP


Engines and ancillary items

Iveco 440 hp

Std twin disc gearbox

Double Groove Front Pulley

Extension Looms

Separ Filter complete

Outboard Option



Engine Bearers

Fit engines supplied by Blyth workcats

Supply and fit stern gear assuming 1 3/4" shafts on stern tubes with greasers

Sure Seals

Supply and fit anodes wired to shafts

Supply and fit twin propellers (200 - 370hp)


Anchor winches and Hauling gear

Supply & fit 1200w electric winch and anchor


GA for Outboard Option


Engine Water cooling

Inlet, Ball valves, Vetus FTR330 filter, glass reinforcing ply into

hull for seacock and filter board connect all hoses back to engine


Exhaust system

2 x Exhaust hose, connected to (risers), rubber transom flaps all fitted


Engine controls

Throttle and gear single unit dual morse control supplied and fitted with cables



Hydraulic steering supplied and fitted

Supply and fit rudders (see advice)


Fuel System

2 x pre-filters, fuel lines and fuel cut off valves

Supply and fit GRP fuel tanks 2 x approx 140 gal

Fuel tank sender units and gauges supplied and fitted



Standard 24v wiring to Angling spec,

Blyth breaker panel

Interior lighting

Jabsco 24v toilet

Standard Radar arch in stainless steel

Nav lights with cables run to helm and connected to panel (excludes panel)

Windscreen wipers supplied and fitted 2 centre screens Vetus


Instrumentation and Electrical equipment

Supply and fit std transducer block

2 x VHF aerial supplied and fitted

Wheelhouse electronic equipment see seperate spec inc fitting


Engine Electrics

Supply 4 x heavy duty batteries port, stbd, house, parallel, switched

wired back to engines and connect to dashboard looms for engine


Generators and AC Power

Supply and fit ring main with 3 outlets and shore power inlet

2.5KW inverter charger


Plumbing and Heating

1 Elec bilge pump to each engine bay - manual operation only

1 Elec bilge pump to all other compartments - Auto/Manual operation

Supply 4 x manual bilge pumps (to cover all compartments)

Supply and fit standard tap sink unit to toilet cubicle

Supply and fit standard galley sink and tap

Supply and fit pressurised water system including 50 gallon water tank and pump

Supply & fit waste tank 25 gallon with 3 way pump out valve

Supply and fit Calorifier

Eberspacher Diesel heater 5 outlet



Crane hire and lifting services

Factory boat lift and lifting services

Oil up engines and antifreeze

Fill fuel tanks



3 names with port of registry

Safety Labels for COP

Std charge for Code of Practice inspection

Std Design charge for Stability book


Common client specified extras

RC search light

Install bridge electrics assumes 5 items

Deckwash electric pump

Exterior deck light

House battery system

Wheelhouse ladder

Cushions for wheel house bench seating area

Safety equipment 12 persons to MCA COP (excl life raft)

Remote activated CO2 extinguishers

Emergency tiller

Simple Water Boiler and Microwave Cooker/Grill

Fitting of liferaft bracket


Full Electronic Specification Included in Price

Radar / Chartplotter

Garmin GPSMAP4010 10.4” Colour Display with GPS antenna

GMR18HD digital Radome c/w 15m cable

UK & Ireland g2 chart EU706L



Lorenz Magnum Pro C-Map chart controller c/w GPS, C-Map chart & 17” monitor (12 volt DC)



Navitron NT777 comprising control unit, distribution box & rudder feedback unit.

Constant running pump 0 to 2.5 litres/min 24volt DC

Navitron NT920NFU Non Follow up power steer (jog) lever

Fluxgate sensor for autopilot heading


Echo Sounder

Koden CVS-128 8.4” Colour Echosounder dual frequency 50/200 kHz

Bronze Through Hull Transducer for above

Icom IC-M505 DSC /VHF Radio c/w fist mike

Icom IC-M603 DSC /VHF Radio c/w fist mike


Fixed VHF Radios

Shakespeare RV240 2.4m VHF antenna c/w 6m cable

VTronix ARMNT Stainless steel antenna base

PV6S 24-12 volt DC converter for VHF



Kannad Automatic EPIRB in float free auto release container, Wheelmarked.

Kannad Rescuer SART

2 x handheld VHF's with DSC

Hand Held VHF's

30" Lifebuoy 2.5kg - MCA x2

4Kg Powder Exting SP - MED Approved x1g

Sirius Lifebuoy Light (Shipswheel) x2

Lifebuoy Light Bracket - Solas/Sirius x2

30mt Floating Line c/w Clip x2

MCA Waterproof Torch c/w Spare Bulb x4

Horseshoe Lifebuoy Bracket Only x2

Eval 2010 Foam Lifejacket - Adult x14

Apollo Auto Lifejacket Light S/Wheel x 14

Ikaros Red Parachute Rocket - MCA x4

Ikaros Buoyant Smoke - MCA x2

OS Yellow Poly Bottle (15lt) x1

Code of Practice Training Manual x1

Fire Blanket Slim Pack MCA 1.8mt x 1.2mt x1

Anchor Ball x1

Kim Cruising Adult Harness x2

Code of Practice First aid Kit (Boxed) 1998 x1

Cat.C First Aid Kit Soft Pack x1

1KG ABC Powder Exting (8A/34B) x2

Fire Bucket - 3 Gallons x2

Hand Portable Emergency Fire Pump (CofP) x1

TPA (Adult x12)


Offered by Solent Brokers as Agents for Blyth Workcats: POA


Further Information Tel: +44 (0) 1983 282 777   or   Email:

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