Adventure 21

Sail away for £65,950


The Adventure 21 is the Bermudan rigged version of the Shrimper 21. More contemporary in finish and fixtures with aluminium spars and white sails whilst still retaining the high quality Crabbers are famous for.

The lifting keel gives a shallow 1’10” draught making her ideal for both cruising and inshore exploring. Drying moorings are easily accessible keeping running costs to a minimum.

The rig is optimised to make the boat easy to prepare for launching using a clever pivoting bowsprit making mast lifting safe and easy.

Unusually for a boat of this size the standard boat features a Yanmar 9hp inboard Diesel. This sets her apart from the other trailer sailors on the market.

The self draining cockpit is well protected with high coamings and has room for up to 6 adults. Spacious cockpit lockers to port and starboard offer dedicated battery, water and gas storage. Teak inlays are a stylish option.

Below deck the accommodation is satisfyingly generous including a well-appointed galley with a double gas burner and fully plumbed sink. A full size double forward v-berth is easily accessible from the saloon with 2 full length settee berths extending under the cockpit. A sea toilet can be fitted as an option under the forward berth.

Every boat is built to order with exterior colours and interior layout finished to your liking. Top quality deck fittings, sails and boom cover come as standard.


Length overall 24’10” 7.57m
Length over deck 20’11” 6.40m
Length of waterline 20’ 6.09m
Beam 7’10” 2.40m
Draught 1’10” – 4’5” 0.57m – 1.35m
Displacement 3086lb 1400kg
Sail area 77’5” 23.6m
Approx towing weight 3968lb 1800kg
RCD category C


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. Standard colours are Off White, Dark Blue or Dark Green. 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 with a stainless steel lifting drop plate.

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. A galvanised steel centreplate forms part of the ballast with a stainless steel lifting wire leading to a winch lifting system operated from the cockpit.

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.


Construction: Hand laid GRP with balsa core in way of horizontal load areas. Hard wood pads under deck fittings and stress points.

Cockpit : Cockpit locker lids are hand laid with balsa core. There is integrated non slip on horizontal surfaces with an optional two tone colour. A cockpit drain is located in the centre of the main foot well with additional drainage from the seats. A central water tight locker offers general storage or houses the diesel engine when fitted.

Deck Fittings: Bespoke deck fittings including bow sprit and chain plates are made from stainless steel. 4 aluminium deck cleats are positioned aft & amidships with two fairleads feeding a hard wood Sampson post forward. All sail controls are led aft to rope clutches / jammers with a single halyard winch to starboard. Adjustable jib & mainsheet cars. Access below is via a teak lined sliding companionway hatch and split plywood / Perspex washboards. Extra ventilation provided by an aluminium forward hatch.

Ports: 2 fixed ports are fitted one each in the hull topsides.

Chain plates: Chain plates are in stainless steel and through bolted on the hull sides.

Vents: Ventilation is via a washboard vent and opening forward hatch.

Miscellaneous Deck Equipment:             

Fuel filler & tank vent. (Inboard version only).

Life harness attachment point by the companionway

Rope tidies for main & Jib halyards.

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


Mainmast: Aluminium extruded section with cast fittings in way of spreaders and gooseneck. Pivoting deck step.

Main Boom: Aluminium extruded section with cast end fittings. Mainsheet, reef and kicker fittings. Pivoting deck step.

Bowsprit: Aluminium sprit pole with Selden deck attachment.


Standing Rigging: Cap shrouds, lower shrouds & forestay in 4mm 1 x 19 stainless steel wire with swaged ends Chromed rigging screws. Jib mounted on reefing spar and controls led aft to cockpit.

Running Rigging:  Main throat / peak halyards – 6mm braid.  Jib &Staysail halyards – 6mm braid. Main topping lift – 6mm braid. Mainsail reefing lines – 6mm braid. Mainsail outhaul – 6mm braid.  Mainsheet & Jib sheets – 10mm sheet rope. All associated blocks for purchase tackles.


Mainsail: White Dacron. 2 reef points with tie in lacings. Luff and gaff lacing as required.

Jib: White Dacron with wire luff and tell tails.

Boom Cover:  In Maroon, or Cream acrylic. Fixings to allow for topping lift and mainsheet take off. All sails supplied with, sail numbers, logo and ties.


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 35 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 3/4″ 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 diesel tank with a capacity of approximately 18 litres, breather and integrated dip stick. The tank is fitted with flow and return lines, the flow line having a manual shut off valve.


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

Fresh Water Tanks: 1 x 10ltr plastic jerry can with manual hand pump. Also a bucket / sink.

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


 Gas System: There is no fitted Gas system on a Shrimper. A gimballed stainless steel basket is supplied to take a single camping gas burner.  The canisters for this are not to be stored inside the boat.


12 volt DC system 

Batteries: Engine – one 12 volt 65 amp/hour. (Optional on outboard version)

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

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

 Miscellaneous Standard Equipment

Deck:  1 x Winch handle. 1 x Bilge pump handle. Stowed in aft cockpit locker. 1 x Fire extinguisher – situated down below.


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 a choice of painted or varnished bulkheads with wood washed maple faced or varnished teak faced side backs.

Soles: A rubber cabin sole is fitted as standard.

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

Test Reports