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J Boats J/120

Swanwick, GB


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1994 J Boats J/120

The J Boats J/120 is a truly versatile model, with a proven track record on the racecourse and the ability to comfortably cruise.

Built in 1994, ‘J Fever’ is a well maintained and successful example of this J Boats great. In the same ownership since 1998, she has enjoyed many successes in the JOG race calendar including Class 1 overall winners in the JOG offshore series 2021 and 2022. As well as regular cruising. Easily changed between ‘race’ and ‘cruise’ mode, with the addition of an easy to install headsail furler, sprayhood and lazyjacks. Her generous sail wardrobe includes a 2018 cruising mainsail as well as 2018 Code 2, Jib top, staysail.

During the course of her yearly maintenance when wintered ashore, the engine has been professionally winterised and serviced annually, the hull sanded and antifouled. The standing rigging was also replaced in 2019. With various custom additions, she is comfortable, fun and fast to sail both in ‘race’ and ‘cruise’ mode!

Currently available to view afloat in Swanwick, Southampton. Contact Key Yachting to arrange your viewing.


Basic Boat Info

Tax Status:
Boat Name:
#3 J Fever
J Boats
Rod Johnstone
Keel Type:
Fin Keel

Engines / Speed

Number of Engines:
Total Engine Power:
34 hp
34 horsepower


Number of Water Tanks:
Water Tank Capacity:
280 liter
Number of Fuel Tanks:
Fuel Tank Capacity:
102 liter


40.03 ft / 12.2 m
Length Overall:
43.08 ft
11.98 ft
Max Draft:
6.89 ft
14,330.05 lb

Additional Info

  • SCRIMP resin infused moulded hull and deck
  • Two tone non-skid deck, non-skid repainted 2021
  • Hull finished in Awlgrip 2000 blue- painted 2016
  • Lead keel bonded to deep molded keel stub
  • Balanced spade rudder on anodised aluminium stock (new rudder fitted 2012)
  • Wheel steered
  • Hull antifouled with Shogun 033 in black. Hull sanded and coating applied Spring 22
  • Yanmar 3JH2E 34 hp inboard diesel engine (professionally serviced annually and winterised each year)
  • Folding prop on stainless steel shaft
  • 102 litre diesel tank
Spars, Rigging and Deck Gear
  • Hall Spars aluminium mast and boom (white painted)
  • Spreader doublers fitted 2019, deck level reinforcement fitted 2019
  • Continuous rod rigging (replaced 2019)
  • Retractable carbon fibre bowsprit 
  • Rod forestay with split drum Harken headsail furler for cruising
  • Hydraulic backstay adjuster
  • Rigid boom vang with 8:1 purchase
  • 2x Lewmar self-tailing halyard winches
  • 2x Lewmar self-tailing primary winches
  • 2x Lewmar self-tailing mainsheet winches
  • Mainsheet traveller mounted in cockpit with 4:1 purchase and 2:1 mainsheet
  • Jib tracks mounted on sidedecks
  • Checkstays
  • Outboard deck tracks at midships
  • Lazy jacks
  • 2022 One Sails 0.75 oz A4 Spinnaker
  • 2018 One Sails Code 2
  • 2018 One Sails Jib Top
  • 2018 One Sails Staysail
  • 2018 One Sails Cruising main
  • 2017 One Sails 1.5 oz spinnaker A3/A5
  • 2015 One Sails Furling cruising Jib No 3 (rolling battens need replacing)
  • 2015 One Sails Racing Jib No 3
  • 2014 One Sails Code 2
  • 2014 One Sails Code 0
  • 2009 Quantum 0.75 oz Spinnaker
  • 2005 Quantum Mainsail
  • 2005 Sobstad Jib No 2
  • 2004 Sobstad Jib No 1
  • 2002 Relling very flat Light Spinnaker
  • 1999 Relling Storm jib and Trisail
  • 1998 Relling Jib No 4
  • 1998 0.5 oz Large spinnaker
Electrical System and Electronics


  • 2x deep cycle AGM 110Ah service batteries
  • 1x engine starter battery
  • Victron battery charger (2019)
  • EFOY methanol fuel cell (3.5 – 4.0 amps production)
  • Merlin battery monitor
  • ADVERC (for faster battery charging from engine)
  • 175 watt inverter
  • Shorepower system with lead and adapters
  • Calorifier with immersion heater
  • DuoGen
  • LED masthead trilight
  • LED Navigation lights
  • Steaming light
  • LED interior lights


  • Raymarine wind, depth, speed transducers
  • 2x Raymarine displays in cockpit and expanded wind display
  • 1x Raymarine maxi display on mast bracket
  • 1x Raymarine display at chart table
  • Garmin GPS 128 
  • Standard Horizon VHF with cockpit microphone and speaker
  • AIS Digital Yacht Class B transponder
  • AIS recieve only unit
  • Computer screen (runs through 12v DC/DC)
  • Sea-Me dual band radar transponder
  • Stereo
  • Mikuni diesel heating (inspected 2022, new air ducts installed 2022)
  • Spacious saloon with drop leaf table, settee berths and hinged pilot berths
  • Sit down chart table
  • Foward v-berth cabin converted into sail storage below, with 2 hinged pilot berths above
  • Heads forward, with access from forward cabin and saloon
  • Marine toilet (Raritan), basin and draining shower tray
  • 280L freshwater capacity in 2 tanks
  • 160L holding tank (heads and holding tank plumbing replaced 2021)
  • Private double cabin aft
  • Well-equipped L shaped galley
  • Double sink with pressurised hot and cold water, as well as foot pump
  • Methylated sprit stove with 2 hob burner and oven
  • Front opening fridge with 3 drawers
Equipment and Safety Gear
  • Delta anchor 
  • Fortress kedge anchor
  • Short length of chain and warp for racing
  • 60m 3/8 inch galvanised anchor chain for cruising
  • Removable bow roller
  • Removable anchor winch (clamps to mast)
  • Chain box, fitted below when cruising, with through deck fitting
  • Anchor recovery device
  • Spray hood and frame
  • Wheel cover
  • Mainsail covers (used with or without lazy jacks)
  • Bosun's chair
  • Fenders and mooring lines
  • Liferaft cradle and canvas cover for on deck storage
  • Removable cockpit table
  • BBQ
  • Winter deck cover

Safety gear

  • Ocean Safety 8 man valise liferaft (lightweight gas bottle, new 2019) 
  • Emergency tiller
  • Energency VHF aerial
  • Throw line
  • Lifesling
  • Horseshoe buoy with DanBuoy, light and drogue
  • Emergency steering drogue with 100m warp
  • Emergency boarding ladder
  • Jackstays
  • Folding aluminium radar refector
  • Foghorn
  • Searchlight
This company, acting as brokers on behalf of the selling owner, who is a private individual. Offers the details of this vessel in good faith but cannot guarantee or 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.