Cornish Crabbers Clam 21 2017

PRICE £37,495

2017 Cornish Crabbers Clam 21 powered by a Yanmar 1GM10 9hp marine diesel engine. A beautiful launch with graceful lines, the Clam 21 is the ideal boat for exploring rivers & inland waterways. With a cockpit spacious enough for 4 and room down below for comfortable weekends away.

Boat Make: Cornish Crabbers

Boat Model: Clam 21

Boat Length: 20.11 ft

Keel Type:

Hull Material: Fiberglass

Length over all 20’11” / 6.40m
Length of waterline 20’  / 6.09m
Beam 7’10” / 2.40m
Draft 1’10” / 0.57m
Displacement 3086lb / 1400kg
Approx towing weight 4410lbs / 2000kg
RCD category C


Yanmar 1GM10 9hp marine diesel engine

Stern Gear: A 1” stainless steel shaft is fitted, connected to the engine via a flexible coupling and fitted with a Tides Marine

‘lip seal’ gland. The shaft drives a fixed 2-bladed propeller.

Engine: Yanmar 1GM10 9hp marine diesel engine. A 55 amp (12V) alternator is fitted to the engine.

Engine Instruments and Controls: The engine instruments are located at the rear of the cockpit coaming and are recessed with a clear cover. Instruments include audible alarm, alternator warning light, start switch and stop control. A single lever engine control is supplied and fitted in the cockpit well.

 Engine Cooling: The engine is directly salt water cooled. A 1/2″ diameter pipe leads from the main seawater inlet through a strainer to the engine and discharges overboard through the exhaust.

 Engine Exhaust: A flexible exhaust hose connects the exhaust via a swan neck with water trap to the outlet fitting through the transom.

 Fuel System: A stainless steel diesel tank with a capacity of approximately 38 litres, breather and integrated fuel gauge. The tank is fitted with flow and return lines, the flow line having a manual shut off valve.


Ropes and Fenders
Boat Hook
Rope cutter
Teak cockpit seats and sole
Sea Toilet with holding tank with electric waste pump and deck flush
12v socket
Echosounder/Log - Raymarine i40
Navigation Lights
VHF Radio - Raymarine 52 with aerial 

Construction: Hand laid solid GRP hull with no foam core. Integral centreplate case laminated as part of the complete hull structure. Internal bunk and forepeak moulding bonded into hull with internal structural bulkheads bonded to both hull and deck mouldings
The hull and deck joint is by way of an overlap or ‘Biscuit Tin Lid’ with GRP bonding.

Rudder: The rudder is transom hung on two stainless steel hangings bolted through the transom with Hardwood backing

pads. The rudder is constructed from laminated Plywood.

 Engine Beds: Engine beds are incorporated in the GRP bunk moulding with mild steel mounts bonded into the bed design which incorporates an oil drip tray.

 Ballast: Ballast is by way of Iron punchings encapsulated in resin inside the hull keel moulding

 Boot Top: A single boot top moulded in gel coat located above antifouling level. Colour in contrast to main hull and normally matching the deck.

Cockpit Lockers: Two main watertight lockers with latches and padlocks are provided. A hast / staple with padlock is also provided for the companionway hatch.


Bilge System: 1 x Manual bilge pump operated from the cockpit with a handle stored in the aft locker.

Fresh Water Tanks: 2 x 10ltr plastic jerry can with manual hand pump. Also a bucket / sink.

Soil System: When fitted the heads discharge directly to sea via a vent loop and skin fitting.

Inlet / Outlet Fittings: Engine: In through a single skin fittings with a valve and strainer. Out via exhaust system.

12 volt DC system  

Batteries: Engine – one 12 volt 88 amp/hour.

Charging: Via main engine – a 35 amp (at 12 volt) alternator.

Switchboard: An optional switch panel is fitted to boats that have additional electronics..

Joinery: The interior joinery is constructed from high quality materials and in accordance with good yacht practice. Bulkheads and side back linings are from Plywood.

Finish: All cabin woodwork is finished in mix of painted bulkheads and varnished trim.

Soles: Laminate teak &  holly sole boards fitted as standard.

Upholstery: A choice of soft or wipe down plastic upholstery is available.

Parkstone Bay Yachts provides the details of this vessel in good faith but cannot guarantee the accuracy of the information set out in these particulars, and do we warrant the condition of the vessel. The particulars are intended as a guide only and do not constitute a term of any contract. A prospective buyer is advised to check the particulars and specifications and where appropriate instruct his agents, or his surveyors, to fully inspect the vessel and/or to have a sea trial of the vessel. This vessel is offered subject to prior sale, price change, or withdrawal without notice.

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