J/30 Buyer's Guide: Specs, Class Racing and Prices

The J30 that followed the J/24 into family sailing

After the J/24 made J/Boats famous, Rod Johnstone designed the J/30 in 1978 for a broader goal: a boat an entire family would enjoy, whether daysailing, cruising or racing. J/Boats' own brochure cited research that active sailing families split their 76 days a year on the water roughly equally between those three activities, and argued that a slow boat eventually loses the young while a pure racer cannot serve a nice meal. The result was introduced in 1979.

Tillotson Pearson built the boats, and the production numbers depend on whom you ask. J/Boats says it was built to hull 546 with a last model year of 1987, Sailing World has said both 545 and 546 hulls, and Wikipedia gives hull 545 in 1986. Either way, more than 540 J/30s exist, and the J/30 Class Association still organizes one-design racing and an annual North American Championship.

Why a fractional rig made a 30 footer easy and fast

J/Boats' tech specs list 29 ft 10 in overall, 25 ft on the waterline, a beamy 11 ft 2 in, 5 ft 3 in of draft and 7,000 lb displacement with 2,100 lb of ballast. Sail area is 444 sq ft, giving a sail area to displacement ratio of 19 and a displacement to length ratio of 200. Sailboatdata notes a fin keel with a transom-hung rudder.

The key idea was the fractional rig. By making the mainsail larger and the jibs smaller, J/Boats said, a 12 year old could hoist and trim the No. 1 genoa, and the jibs were smaller than those on a C&C 26 or Pearson 28. Bending the tapered mast with the backstay adjuster flattens the main and depowers the boat, so one headsail covers a wide wind range. The company claimed the J/30 sailed with 35 to 40 footers and finished a football field ahead of an average 30 foot cruiser after a mile, making 40 to 50 mile daily runs easy.

SORC results and the 1979 Fastnet

The J/30 earned its offshore credentials almost immediately. J/Boats says a J/30 was the top stock production boat at the rough 1979 SORC, finishing 3rd and 4th overall in fleet. The same year two J/30s were caught in the Fastnet storm that killed 15 sailors. Hull 10, Juggernaut, had been shipped to England as a pattern for Westerly Marine's UK production and was entered in the race; hull 29 was being sailed single-handed from Bermuda to England by Texan Bill Wallace and met the storm entering the Channel. Both survived.

Owners have also used the boat for longer cruises. J/Boats publishes an account of a J/30 sailed from Connecticut to the Yucatan, the Virgin Islands and back, some 6,000 miles, which earned the boat respect from the yard crews who saw it go.

A real cruising interior in a race boat

What surprised buyers in 1979 was how much boat there is below. J/Boats lists standing headroom, an enclosed head with a full length mirror and fresh water shower, 29 enclosed cabinets and lockers plus 16 open shelves, 5.5 inch thick settee cushions, and an icebox that holds ice for 11 days. Later boats got an L-shaped galley with an optional propane oven and a cruising cockpit seating three or four a side. Sailing World adds hot water to the list of cruising amenities.

The 15 hp diesel pushes the boat at about 6.3 knots according to J/Boats. It is a realistic family weekender for two adults and two children, and a credible coastal cruiser for a couple who do not mind a simple boat.

Built to last, but check the core

J/Boats' slogan for the J/30 was Built to Last, Not to a Price. Hull and deck use Lloyd's-approved Contourkore balsa sandwich, the mast is stepped on the keel, chainplates anchor into a full structural fiberglass bulkhead, and the hull-to-deck joint is bonded, bolted, then bolted again through the teak toerail cap. Original gear included Barient winches, Harken mainsheet and vang tackles, a Headfoil jibstay and Kenyon spars, with standing rigging a size larger than necessary.

The weak point is the balsa. Sailing World warns that many J/30s suffer core rot from water entering around the chainplates, a repair it estimated could cost about $3,000 professionally, and today it can cost more. Doug Stryker, an Annapolis racer, found and fixed wet spots in the hull and deck of his hull 526. Assume any J/30 has some moisture until a surveyor with a meter proves otherwise.

One-design racing on a budget

The class remains strongest on the Chesapeake. Sailing World reported that Annapolis drew 19 boats to a recent North American Championship, its best turnout since the early 2000s, with Eastport Yacht Club fleet numbers more than doubling in a few years and 10 to 15 boats expected at local events. Pocket fleets race in New England and the deep South.

The boats race with a crew of six to eight, about 1,400 lb in total, and a symmetric spinnaker, which makes crew work a real skill. Class rules require a Dacron main, holding down sail costs, though Sailing World put a set of new laminated racing sails at about $9,000. For a sailor who wants competitive, affordable one-design racing in a boat they can also take cruising, few options compare.

Buying a J30 for sale in 2026

Prices are low enough that the boat itself is rarely the main cost. Focus on deck and hull moisture, chainplates, the rudder and its fittings, keel attachment, engine condition and the sail inventory. A boat with fresh class-legal sails and a sound deck is worth far more than a cheap boat that needs both. Annual running costs in the US are about $4,000 to $10,000 for a slip or mooring, insurance, haul-out and maintenance, with racing sails and regatta fees on top.