j 120 sailboat

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• By Bill Lee And Sheila Mccurdy
• Updated: October 31, 2001

We motored away from the dock in Newport on a calm pretty morning. The GPS agreed with the speedometer — flat out we were doing a respectable 8.6 knots on this 40-footer powered by a 38-horsepower Yanmar driving a Martec two-blade folding propeller. Optimal cruising speed would be a little less.

Under Sail We headed for a light breeze and hoisted the long-battened mainsail on Harken slide cars with ease. The boat was responsive and maneuverable under main alone and came alive when we unfurled the jib. This J/120 was equipped with an optional carbon mast by Hall Spars. The reduced weight aloft made possible by a carbon spar increases the range of positive stability as well as performance overall. The mast is stepped through the deck for extra stiffness in the rig and better control of sail shape.

Off the wind, the boat sailed very well under the asymmetrical spinnaker. Once essential line attachments were made on the foredeck and the spinnaker pulled out of the forward hatch, all spinnaker operations, including using the snuffer, were possible from the cockpit. In light air the 120 moves fast enough to bring the apparent breeze well forward and thus, even with this sail tacked out on the extended seven-foot sprit, one needs to think like a catamaran sailor and tack downwind.

The boat we sailed had the standard seven-foot lead keel; a 5’9″ shoal-draft keel is offered optionally. Both keels are narrow fins with an elephant-foot style bulb on the bottom for good stability and lift.

The Cockpit The cockpit is very comfortable with well positioned foot bracing for the crew when the boat is heeled. The double-ended mainsheet has Harken 44 self-tailing winches on each side of the cockpit reached easily by either the helmsman or the crew — as is the traveler. All halyards and reef lines lead aft on the cabin house and all winch handles clear the dodger comfortably. The 48-inch-diameter lightweight Edson aluminum wheel permits the helmsman to get well outboard on either side for maximum visibility. The helmsman seating is comfortable both when level or heeled. All of this provides a good balance between shorthanded and crewed sailing.

The Interior Below, the ladder had a generous 60-degree slope and side rails kept one’s feet from sliding off when heeled. The interior was light and airy with double staterooms fore and aft. No Dorades were provided; however, the cabin ports opened. Both double berths were a little on the small side and the inboard end of the J sprit did occupy a portion of the forward stateroom; however, given the interiors of most 40-foot race boats, this cruiser/racer had very nice accommodations. The two main cabin settees were long and straight, and could easily function as sea berths with lee cloths in place. While the galley is compact, it is very adequate and the six-cubic-foot icebox is bigger than on many boats. An Origo non-pressurized alcohol stove with oven is standard. The stove gimballed well and was equipped with a protection bar.

Construction The hull and deck are fiberglass with balsa core and the boat is built to ABS-approved plans. The boat is laminated using the resin-infusion process, which gives superior quality over conventional production layup techniques. The hull-to-deck flange joint is extra wide at 4.5 inches, and it is glued using a urethane elastomer adhesive. While strength is gained wherever rail hardware is bolted through and where bulkheads are attached, the glue does most of the job. The lack of mechanical purchase in this hull-to-deck joint may make some nervous, but for reassurance one only need consider that most of the boat — in fact most of any FRP boat — is held together by various types of resin and glue in the first place. The new series of “J sprit” boats represents an excellent balance between cruising boats you can race and racing boats you can cruise coastally. Certainly, the boat can be made even faster by removing the lazy jacks, replacing the jib furler with a foil and adding a conventional spinnaker for square running. But that’s not the point. The point is to create a shorthanded cruising boat that can perform, and J/Boats has done a superb job. — Bill Lee

To cruising sailors who seek out new models at boat shows, the J/120 is something of a quiet dove among pouter pigeons — built more for flying than roosting. There are no button-tufted armchairs, vanities or mood lighting. There are powerful and easily managed sails, a responsive helm, a light but well-built hull and efficient maintainability throughout.

At the dock, the lack of frills gives the boat a Spartan or simplistic appearance, but a sailor’s appreciation builds immediately when under way. Almost invisible details make the boat a pleasure to be aboard. The cockpit is configured for convenience of steering and sail handling. The big wheel and semi-balanced rudder create a fingertip helm, and when I nudged it less than a half turn to leeward while we churned upwind, the boat fell off instantly without any need of easing the large-roached mainsail. An additional benefit of the light helm is that it puts a small load on an autopilot; the blade is powerful, balance point spot on.

Form and function take precedence over styling statements on Rod Johnstone’s designs. Moving around the boat is easy and there are handholds and foot braces just about everywhere they are needed. The winch placements are logical and the wide side decks have good non-skid. The deep cockpit locker has a gasketed lid and is also accessible through a door aft of the galley, which allows you to avoid the sometimes painful contortions involved with getting a sail or inflatable dinghy out of the nether regions. There is no awkwardness in getting below. The companionway ladder is sturdy and safe to use even when the boat is heeled and bounding over waves.

The J/120, as delivered, lacks a quilted homeyness found on many 40-foot cruisers.It does not lend itself immediately to long-term live-aboards, but there is certainly enough space and stowage for two couples to cruise for a fortnight or more. A few accommodation innovations are worth a closer look. Bedding on this boat can be stowed inside throw-pillow covers — solving the problem of what to do with bedding during the day and piles of pillows at night. Also dual-purpose seat back cushions on the settees serve as cockpit cushions. This solves the bulky stowage problem of deck cushions, but introduces some new concerns about lack of waterproofness and whether bringing damp, salty cushions below creates more of a problem than it actually resolves.

One of the few space conflicts on the J/120 is created by the asymmetrical chute in its snuffer, which can remain hooked up to its sheets and halyard and be stowed conveniently inside the forward hatch. This puts it on the forward bunk. The crew must decide whether sail stowage or human comfort wins out in the forward cabin.

The value of the J/120 comes from building costs that have gone into substantive structures and quality gear. The base price of $162,600 is certainly attractive, but typical buyers opt for a variety of extras that boost this figure up to anywhere from $220,000 to $230,000. The boat that we sail tested cost about $247,000, which included the carbon fiber rig, radar on a removable pole, full sailing instruments, and autopilot, among other things. It is worth noting that the following items are also on the option list: hot and cold pressure water, 110-volt shore power, refrigeration, propane stove and oven, opening ports in cabin trunk, molded anchor well and removable bow roller. Certainly, the advantage of this is that a buyer does not pay for items not needed.

Overall, I agree with Bill Lee’s comments about this boat. I found the J/120 handsome, fun and easy on maintenance. — Sheila McCurdy

J/120 SPECIFICATIONS:

LOA 40’0″ (12.2 m.) LWL 35’0″ (10.7 m.) Beam 12’0″ (3.7 m.) Draft (deep) 7’0″ (2.1 m.) Draft (shoal) 5’11” (1.8 m.) Ballast 6,000 lbs. (2,722 kgs.) Displacement 12,900 lbs. (5,852 kgs.) Sail area 780 sq.ft. (72.5 sq.m.) Mast above water 62’7″ (19.1 m.) Ballast/Disp .47 Disp/Length 134 SA/Disp 22.7 Fuel tankage 27 gal. (102 l.) Water tankage 75 gal. (284 l.) Auxiliary Yanmar 3JH2-E 38-hp. 3-cyl. diesel Cabin headroom 6’2″ (1.9 m.) Designer Rod Johnstone Base price $162,600 (alum spar) $173,600 (carb spar)

J/Boats Inc. 557 Thames St. Newport, RI 02840 Phone (401) 846-8410

• More: 2001 - 2010 , 31 - 40 ft , Bluewater Cruising , J/Boats , keelboat , monohull , racer / cruiser , Sailboat Reviews , Sailboats
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• Sailboat Guide

J/120 is a 39 ′ 11 ″ / 12.2 m monohull sailboat designed by Rod Johnstone and built by J Boats between 1999 and 2006.

Rig and Sails

Auxilary power, accomodations, calculations.

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

SA/D = SA ÷ (D ÷ 64) 2/3

• SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
• D : Displacement in pounds.

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Ballast / Displacement * 100

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

• D: Displacement of the boat in pounds.
• LWL: Waterline length in feet

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )

• D: Displacement of the boat in pounds
• LOA: Length overall in feet
• Beam: Width of boat at the widest point in feet

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

CSV = Beam ÷ ³√(D / 64)

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1994 J Boats J/120

Make or manufacturer, length overall, length at waterline, displacement, fuel capacity, water capacity.

ACCOMMODATIONS: Sleeps 7 in two cabins and main salon Lavac manual head w/stall shower

GALLEY: Sink - manual faucet Two burner Force 10 stove/oven (CNG w/2 bottles) Microwave Refrigerator Hot & cold water Approx. 70 gal. water capacity in 2 tanks

ELECTRONICS & NAVIGATION: NKE Regatta Processor (2014) (2) NKE Multi Graphics (2014) (2) NKE Multi Displays (2023) NKE Regatta Compass (2014) NKE Ultrasonic Speed (2014) NKE Depth Sounder (2021) Carbon MHU (NKE rebuilt 2021 by NKE) B&G NAIS 4000 Transceiver Ship Modul Multiplexer (2022) B&G 9” Zeus 2 (Helm) B&G 7” Zues 2 (Nav) Raymarine Autopilot w/7002 control @ helm Fleet One Satellite Broadband/Phone (2022) Beelink Computer w/Expedition (2023) 22” Monitor (2019) B&G Radar (not installed but will include) Fusion Stereo ICOM M-424 VHF w/DSC (Mast cable replaced 2022)

ELECTRICAL: 2013 House bank of batteries (360 AH) 2013 AGM 90 AH engine start battery Mastervolt battery monitor 2013 Alternator 2013 LED Navigation lights 2013 LED Cabin lights

HULL & DECKS: Fiberglass hull & decks; blue hull, white boottop, gold cove stripe, white non-skid decks S/S swim ladder Single lifelines

SAILS 2021 – Quantum Membrane Main Unknown - Evolution Hydra Net Main (Delivery) 2023 – Doyle Stratus J1 2020 – Quantum Carbon J1 2014 – North 3DL J1 Unknown – Evolution Hydra Net J1 (Delivery) 2014 – North 3DI J2 2014 – North 3DI J3 Unknown – Evolution Hydra Net J3 (Delivery) 2022 – Quantum Carbon J4 2014 – Quantum JT (138%) Hood Genoa Staysail 2020 – Spinnaker Staysail 2023 – Doyle A2 2021 – Quantum A2 2020 – Quantum A1.5 2014 – Quantum A3 Unknown – Evolution Code Zero w/Karver furler 2014 - Quantum Trysail (Orange) 2014 – Quantum Storm Jib (Orange)

Deck/Mast Running rigging upgraded and serviced annually as needed Antal/Harken deck hardware Hall Quickvang Hall Carbon Mast w/Antal track & cars Hall Aluminum Boom Spartite Mast Colar Carbon Retractable Bowsprit In/Outbourd Jib tracks w/cars (Antal) Adjustable genoa cars 8:1 purchase (Antal) Upgraded traveller (Antal) Lewmar Winches (6) (serviced annually) Antal Rope Clutches Full Dodger (VG Condition) Offshore Companionway Dodger (2022) Wheel Cover (2022) Mainsail Cover (2022) Sheetbags (3) Schaefer Aero Tuff Luff (2022) Sailtec #12 Integral Backstay Adjuster (2018) Rod rigging fully serviced @ BSI (2021) LED Deck Level Navigation Lights Masthead Lopolight LED Navigation/Anchor Light

MECHANICAL & ELECTRIC: Yanmar 3JHE2 Racor 500 series Turbine Secondary Fuel Filter w/vacuum guage Balmar 100A Alternator Balmar Serpentine Pully Kit Balmar MC-614 Regulator Lifepo4 180AH battery bank (2021) AGM 31 start battery (2019) PSS Drip Free stuffing box (2014) Flexible shaft coupling 3 Blade Feathering Max Prop (2014) H/C pressure system galley, head & cockpit. Lines replaced (2019) 6 gallon Isotemp hot water heater (elec/engine) Manual faucet in galley Refrigeration 2 Burner Force 10 Stove/Oven (CNG w/2 bottles) Lavac Manual Head (2) Electric Bilge Pumps (2) Manual Bilge Pumps Safety Equipment 406 EPIRB Viking 8 person offshore raft (4/2021) Jack Lines DSC VHF ICOM-424 AIS Transceiver (B&G NAIS-400)

UPDATES Two burner Force Ten CNG Stove & oven Sea Frost Refridgeration Heart Systems Tank Tender Aqualarm Smart bilge Monitor & Alarm Raymarine Smart Pilot Jabsco Parmax plus Water system pump 3m Model B2 water filtration system 3 blade Max Prop propeller w/ new shaft New Guzzler bilge pump Keel faired and new rudder bearings (Jeffa) Deck and cabin top new non-skid/paint

OTHER: 2013 dodger w/130 watt solar panel, cockpit cushions, cockpit table, cockpit shower, 45# Danforth anchor, Delta 22 anchor & rode, fenders, dock lines

UPGRADES 2023 New Beelink Computer Engine Oil Change/Filters Raw Water Pump Impeller Heat Exchanger Cleaned New Forward Hatch New Salon Hatch Lid Bottom Painted (Black Widow) Steering Gear Inspected Seacocks Serviced Winches Serviced All Running Rigging Serviced New Genoa Sheets Engine Ignition Switch

2022 Fleet One Satellite System Engine Oil Change/Filters Seacocks Serviced Winches Serviced New Tack Line New Spinnaker Halyard New Spinnaker Sheets Spinnaker Staysail Furler (Harken) Bottom Painted (Baltoplate) Spar Removed & Standing Rigging Inspected New 2:1 Main Halyard Replaced Side Shroud Chainplates Water tanks bleached

2021 Topside Painted Deck Non-skid Painted Engine Oil Change/Filters Fuel Tank Removed and Cleaned Seacocks Serviced Winches Serviced Fore/Aft Panel in Quarter Berth Replaced Floorboards Stripped & Varnished Spar Removed & Standing Rigging Inspected All deck hardware removed and rebedded Bottom Painted (Baltoplate) Engine Stop Cable

2020 Mast Removed & Painted Boom Painted Bow Sprit end modified & painted (Dual tacklines and bobstay) Rod rigging reheaded (BSI) Engine Oil Change/Filters Fuel Tank Removed and Cleaned Seacocks Serviced Winches Serviced New Tackline New Jib Halyard Foredeck Padeye for Spinaker/Genoa Staysail Harken Spinnaker Blocks Bottom Painted (Baltoplate)

2019 Replaced all fresh water pressure lines Water tanks bleached

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J-120 J-Boats

• Reference ID 286
• Builder J Boats
• L.O.A. (mtr) 12.24
• Beam (mtr) 3.67
• Draft (mtr) 2.17
• Displacement (Kg) 7121
• Engine Yanmar 3JH2E

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Yacht description.

New on market as the team takes on a new challenge, this J120 has been meticulously prepared and extensively set up for doublehanded racing.  With an impressive race record, she is arguably the fastest J-120 in Dutch and UK competitions – including the full-crewed J-120s. 

Race record includes class wins and podium places in the RORC East Coast Race (3X), Cowes-St. Malo Race, Cowes-Cherbourg Race, Around North Holland, 50 Miles Doublehanded, Bruine Bank Race, Ijspegel Series, and the Dutch Doublehanded Championships.   Finished the 2017 Dutch Doublehanded Series in second place, and 6 th in the RORC series. 

 GPH 603.3

Builder J-Composit

Faired and epoxied (6X) hull

Antifouling 2 coats Nautix 2017

• 2 blade folding propellor
• Well maintained engine
• new anode 2017

J-120s continue to enjoy strong popularity and are regularly cited as one of the top cruiser-racers.  With a large rudder, fuller keel and high ballast ratio compared to many newer racers, the J-120 is forgiving and easily controlled in heavy conditions, hence an ideal choice for offshore racing and passage making.  Maverick is not only a top race boat but also boasts comfortable accommodations in three cabins, with full amenities for cruising comfort. 

• Carbon Mast (Nordic), maststeps
• New Rod rigging (2014)
• All jibs with hanks
• Replaced running rigging and shackles Lancelin/Tylaska (2014)
• Furler and Tuffluff
• Vang Selden
• retractable bowsprit
• Offshore Mainsail (3 reefs) OneSails Forte 4T (2017) - condition as new
• Jib1 Light One Sails (2015) - condition very good
• Jib 2 OneSails Forte 4T (2015) - condition very good
• Jib 3 / 4 (reefable) Onesails Forte 4T (2017) - condition as new
• A2 OneSails (2015) - - condition fair
• A4 OneSails (2016) - condition very good
• A5 OneSails (2015) - condition very good
• Storm Trysail (OneSails)
• Storm Jib (OneSails)
• Foretriangle preventer (OneSails)
• OneSails boomcover (2017)

Older/Delivery Sails

• Dacron Main- condition good
• Jib 3 (Doyle) - condition poor
• AP Gennaker - condition fair
• Jumbo Gennaker- condition fair
• Lazyjacks fitted
• Old boom cover

Accommodations

• Chart table with seat starboard side
• Webasto heater, outlets all 3 cabins
• Blue upholstery with Matching curtains
• Saloontable with foldable leafs
• Head with shower, toilet and sink
• Dual water tanks 285l total
• Refrigerator
• Hot water heater
• Double sinks
• Storage in lockers and drawers
• 2 burner stove with oven

Deck and Cockpit

• Harken mainsail track and cars
• Bow anchor roller
• Fortress Anchor with leaded line
• Steering wheel white sprayed (Carbonautica composite wheel)
• Steering pedastle with compass
• Transome shower
• swimming platform
• Swimming ladder
• Winches Harken, 44 mainsheet, 44 pit, 48 Genoa, all 2sp ST
• Mastervolt Battman Voltage Monitor
• Shorepower with cable
• Batteries AGM 2015, 110 Ah each
• Fire extinguishers (2)
• Horseshoe with light
• Cockpit tether point
• Interior electric and manual bilgepump
• Exterior manual bilgepump

Electronics and Navigational Gear

• Standard Horizon GX2000 Dual Station VHF, DCS/AIS
• Standard Horizon Remote VHF Mike
• JVC KDSX1000R Stereo, Bose Speakers
• NHK Multifunction TL25 Mast Displays (3 X 3) in mastbracket
• NHK  Gyropilot 2 Autopilot with following set up: Linear drive;Fluxgate compass; Electromagnetic speed sensor; Apparent wind mode option; Gyrographic Display;Performance Display; Remote and MOB fobs
• True Heading AIS CTRX Graphene+ AIS Class B transponder w/VHF-splitter
• Celwave GPS Antenna
• Raytheon RN300 GPS (Backup)
• Raymarine 6002 Autopilot (disconnected,  backup)
• 12V and USB outlets
• Multiple 220V Outlets
• Binnacle magnetic compass
• Fenders and warps

The Company 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.