J/40 Review, Specs and Buying Guide for the Classic and New J40

Which J40 are you looking at, the 1984 boat or the 2024 boat?

Search for a J40 sailboat for sale and the listings will mix two boats that share nothing but a name and a family. The first J/40 was the company's first true offshore cruiser, drawn by founder Rod Johnstone and launched in 1984. J/Boats says it was built through hull number 86, with 1994 as the last model year. The second J/40 arrived 40 years later, designed by Rod's son Alan Johnstone and built in France by J/Composites. It is lighter, longer on the waterline, carbon rigged and aimed at the same family offshore market with modern tools.

This page treats the 2024 boat as the current J/40, but gives the classic its own section because brokerage listings are still dominated by older hulls. A masthead rig, single wheel and 1980s build year means the original; twin wheels, a plumb bow and a fixed sprit mean the new generation.

Al Johnstone's brief, sail at wind speed in 8 knots and still pass the family test

J/Boats describes the new J/40 as a design that does not fit a rule or a category. Al Johnstone's stated goal was a boat with the sail power and stability for both light and windy days, able to excel in coastal and offshore rallies and races while passing what he calls the family cruising test. The builder claims that in under 8 knots of breeze, with mainsail and code sail, the J/40 sails at nearly the wind speed. Cruising World reported that the design target was sailing close to windspeed in 8 knots while letting the crew dial back when it gets sporty.

The team behind it produced the J/112E, J/122 and J/45, and the 40 borrows openly from the 45: twin wheels, a low deckhouse, a plumb bow and a fixed carbon bowsprit that also carries the anchor roller. The hull keeps a smooth, chineless run aft, which SAIL singled out as a difference from many modern performance cruisers. J/Boats names the Rolex Fastnet, Newport Bermuda, Transpac and Chicago-Mac as events the boat can be optimized for.

Twin wheels, six winches and a German mainsheet

The cockpit is the part of the new J/40 that racers and cruisers will argue about least. All sail controls lead aft to six Harken Performa winches, optionally electric. The mainsheet is a double-ended German system that runs inside the boom and below deck before emerging near the aft winches, so the helmsman can trim from either wheel. The hydraulic backstay and a cockpit-wide traveler set in the sole are within reach of the driver, and two coaming winches handle the jib and spinnaker while two cabin-top winches, one electric, take halyards and reef lines.

The non-overlapping jib is sheeted through floating inhaulers on the cabin top, giving real shape control without grinding a big genoa. Twin low pedestals with Lewmar chain-and-wire steering free the centerline for a removable table, and J/Boats claims 360-degree visibility from the helm, which both magazines confirmed.

Practical details count offshore. SAIL notes a line-tail locker under the cockpit sole that satisfies offshore racing rules and allows a low companionway threshold, a dedicated liferaft locker, an oversized anchor locker that doubles as fender stowage, and an optional inner forestay for a staysail or storm jib. A drop-down swim platform is optional, and on hull one the autopilot drove a separate tiller arm on the rudder stock for steering redundancy.

Three cabins and one head, or two cabins and a garage

Below, the new J/40 offers two layouts. The standard plan has twin double cabins aft, a V-berth cabin forward and a single head with shower forward of the mast, which suits families and offshore race crews who want to sleep on the high side. The alternative replaces the starboard aft cabin with a large storage garage and adds a second head with shower aft, which Cruising World and SAIL both suggested would suit a cruising couple with gear and occasional guests.

The saloon has an L-shaped galley to port at the foot of the companionway, a forward-facing nav station to starboard, a fold-out table with L-settee to port and a straight settee opposite. Overhead handrails run the length of the saloon, something Adam Cove called a rarity on current production boats, and the galley counter carries a full fiddle and grabrail. Mahogany is standard, with white oak and walnut optional; hull ports throughout, plus an optional comfort package with extra ports, sliding shades and upper cabinets.

This is still a performance boat inside: headroom over the aft berths is limited, aft stowage is modest and some lockers show painted fiberglass. In the U.S., air conditioning and electronics are dealer-installed, so equipment varies boat to boat.

What the J/40 actually did on test

Both major U.S. tests were sailed on Chesapeake Bay in late 2024. SAIL's Adam Cove sailed the first U.S. hull in light to moderate air: 6.6 knots of boatspeed at 28 degrees apparent in 8 knots of wind, and 7.2 knots reaching under a large A2 asymmetric at 110 to 130 degrees apparent in only 8 to 9 knots of breeze. Cruising World's judges saw 8.3 knots closehauled in roughly 15 knots of wind and called the Lewmar steering smooth as butter.

Under power the 50 hp Volvo on a saildrive pushed the boat at 6 knots at 2,000 rpm into a light chop and 7.3 knots at 2,500 rpm. No fuel figures were published, so we have not invented one. J/Boats promises double-digit speeds off the wind in more breeze, which neither test had the conditions to confirm.

Infusion, Corecell and a yard in the Vendee

J/Composites, the French arm led by Didier Le Moal, was the first European builder to adopt resin infusion in the mid 1990s, according to J/Boats. On the J/40 the hull, deck, structural grid and main bulkhead are all vacuum-infused with Corecell foam core, using three core densities in the hull and two in the deck. J/Boats says it is the only 40-footer on the market with all four elements infused, and the infused veneer-and-foam main bulkhead is part of the weight control story.

The rig is a keel-stepped Axxon tapered carbon mast, 63.8 ft per J/Boats, with discontinuous rod rigging, an aluminum boom and slab reefing led inside the boom. Standard electrics are a conventional AGM bank, and the two-blade Gori folding propeller can be upgraded to three blades.

For owners, this is a modern composite boat that rewards routine care of saildrive seals, rod rigging and any hardware penetrations into the cored deck. None of these are known faults, just the maintenance items of the type.

Rod Johnstone's original J/40, 1984 to 1994

The original J/40 was J/Boats' first bluewater cruiser and, as Cruising World recalls, Sailing World named it Best Domestic Cruiser as soon as it appeared. It is 40 ft overall with a 34 ft waterline, 12 ft 2 in beam, 18,000 lb displacement and 6,500 lb of lead ballast, according to sailboatdata, with a 6 ft 6 in standard draft plus wing keel (5 ft 5 in) and shoal fin (5 ft) options. Power was a 43 hp Volvo diesel under the galley sink, with 33 gallons of fuel and 60 gallons of water.

The deck has a small cabin house and a large single-level cockpit with the mainsheet traveler separating helmsman from crew, a wheel on a balanced rudder in Harken roller bearings, and a double-spreader masthead aluminum rig by Kenyon Spars with Navtec rod rigging. Below, a V-berth and head forward, proper settee berths, galley and nav station amidships, a double cabin aft to starboard and a second head aft to port. The boat raced well under PHRF and later ORR, especially in the Newport Bermuda Race, and the J/40 Owners Association remains active.

As a used buy, a classic J/40 is an honest offshore boat at a fraction of new money; age matters more than design, so focus on engines, decades-old rod rigging, chainplates and deck core moisture.

Pricing a J/40 in 2026

New, the 2024 J/40 starts around $500,000 according to Cruising World, and the Annapolis show boat was closer to $650,000 with air conditioning and electronics; SAIL listed $625,000 as sailed. Budget for dealer-installed electronics and climate control on top of the base boat.

Classic J/40s are priced on condition rather than year: newer sails and a repowered engine put a boat at the top of the range, original rod rigging and a wet deck at the bottom. Expect annual costs of $18,000 to $45,000 for a 40 ft slip, haul-out, insurance and, if you race the new boat, sails.