J-Boats J/122 Sailboat Review, Specs, and Listings

Johnstone·2008·J Boats
J-Boats J/122 drawingBuilder drawing
Hull Type
Monohull · bulb
Rig
Fractional Sloop
LOA
40' · 12.19 m
Disp.
14,900 lbs · 6,759 kg
First year
2008

The J/122 is a 40foot cruiser/racer penned by Alan Johnstone and produced in France by J/Europe at Les Sables d’Olonne, pairing a performance hull with a genuinely livable interior. Introduced as a new design from J/Boats that promises comfort in port and hardware around the buoys, it was conceived with both cruising and racing in mind, and the builder notes it is intended to carry some weight without sacrificing pace.

Measurements

Dimensions 01

Length Overall
40 ft
Length on deck
Waterline Length
34.6 ft
Beam
11.91 ft
Draft
7.22 ft
Maximum Headroom
Air Draft

Construction & hull 02

Construction
Fiberglass
Hull Type
Monohull
Keel Type
Bulb
Rudder
1× Spade
Ballast
5,600 lbs (Lead)
Displacement
14,900 lbs
Water Capacity
42 gal
Fuel Capacity
35 gal

Rig & sails 03

Rigging Type
Fractional Sloop
Mainsail luff
51.34 ft
Mainsail foot
17.57 ft
Foretriangle height
54.42 ft
Foretriangle base
15.2 ft
Forestay Length (estimated)
56.5 ft
Sail Area
865 sqft

Calculations 04

Sail Area to Displacement Ratio
22.85
Ballast to Displacement Ratio
37.58
Displacement to Length Ratio
160.59
Comfort Ratio
23.46
Capsize Screening Ratio
1.94
Hull Speed
7.88 kn

Design and Construction

The J/122 carries light-to-moderate displacement of 14,900 pounds on a 34-foot-6-inch waterline, with minimal overhangs and a slippery, flat-bottomed hull form that explains its low displacement-length ratio of 161. The iron keel fin carries a 5,600-pound lead bulb, giving a ballast ratio near 38 percent. Hull and deck are molded using the SCRIMP resin-infusion system, with end-grain balsa in the hull and foam in the deck sandwiched between skins of E-glass and vinylester resin. The hull-deck joint is an inward-turning flange backed by a primary bond relying almost exclusively on Plexus, and bulkheads are laminated to hull and deck for structural continuity. A high bridgedeck protects the cabin from downflooding, and the boat comes with a 10-year osmosis warranty and a 5-year structural warranty.

Rig and Handling

A swept-back double-spreader Hall Spars carbon-fiber rig and a retractable carbon-fiber bowsprit are standard, the rig showing a wide shroud base with chainplates tied to the rail to extend the spreaders and lighten the mast. The jib sheets inside the shrouds, and the furling drum for the headsail sits belowdeck. Halyards and reefing lines are led aft to the cabintop, organized with Spinlock XCS rope clutches and dual Harken 44.2 STA halyard winches, while the 2:1 end-boom mainsheet runs through dual Harken 46.2 STA mainsheet winches and a flush-mounted 6:1 traveler forward of the wheel. Test sailors found the boat had a crisp, stiff feel and is exceptionally well balanced, with almost no weather helm sailing upwind and a tight turning radius under both sail and power. Reefing via a two-line setup was a snap, and off the wind the crew easily made 9.1 to 9.3 knots with the kite up in 11 to 13 knots of breeze, the A-sail flown and gybed from the cockpit by three.

Accommodations

A three-cabin, single-head layout is standard, with a more-traditional optional cruising layout of two cabins and two heads; the latter gains a head convenient to the watch and a generous garage aft. Both layouts place a forward-facing nav station to port, and the saloon settees run parallel to the centerline, augmented by swing-up pilot berths to keep resting crew amidships. Twin aft double cabins serve as sea berths offshore and private quarters in port. The interior pairs a synthetic light-colored antiskid sole with mahogany woodwork and molded white wood hull lining for an airy feel, and a removable molded modular headliner eases access to deck fittings. The efficient U-shaped galley has deep near-centerline sinks, a three-burner stove and oven, and serious practical fiddles; fuel and water tanks sit below the settees. Saloon headroom is 6 feet 4 inches, with 6 feet 3 inches aft and 6 feet 2 inches forward.

Cockpit and Deck Gear

The cockpit measures over 12 feet long and carries two foot braces integrated into the floor behind the big wheel, with clean sight lines from multiple helm positions. Two big side lockers and a sole locker abaft the wheel handle gear, and most deck hardware is by Harken. The molded fiberglass foredeck toerails are IRC-legal, and the cabintop sports stainless-steel handrails. The optional removable dock box seals the open transom — a feature cruisers will want to close off the cockpit, with the box likely housing the life raft.

Performance Profile

Cruising World judged the J/122 a performance-oriented boat, and on the water testers easily made low-to-mid 7 knots to weather in 8.5 to 9 knots apparent while sailing tight angles. With the standard Volvo D2 40-horsepower saildrive, the boat made 8-plus knots at 2,200 RPM. IRC handicap ratings run 1.096 to 1.010 and PHRF 36 to 39, confirming the dual-purpose intent.

The Verdict

The J/122 succeeds as a true cruiser-racer: a resin-infused, well-warrantied hull carrying a stiff carbon rig and a balanced helm, wrapped around a light and practical three-cabin interior. It is quick upwind and faster off it, yet equipped for extended cruising with sensible tankage and sea berths.

Pros

  • Stiff, well-balanced handling with minimal weather helm
  • Infused balsa-and-foam construction with strong warranties
  • Genuine cruising interior with sea berths and forward nav station
  • IRC and PHRF ratings suited to racing

Cons

  • 7-foot-2-inch draft limits shallow-water cruising
  • Open transom needs optional dock box for closed-cockpit cruising

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