Island Packet 40 Sailboats for Sale

What sets the IP40 apart structurally is its Full Foil Keel — an integrated hull-and-keel design with internal lead ballast that eliminates the keel-bolt failure mode entirely. The result is a boat with a very high ballast-to-displacement ratio and a motion comfort figure well above average for her size class. She tracks steadily in a following sea, the autopilot works less hard than it would on a flighty fin-keeled design, and there is none of the snaking or hunting that plagues lighter boats in confused swells. The trade-off is a generous turning circle and sluggishness in light air — both well-known characteristics that IP40 owners accept cheerfully in exchange for what the boat gives them offshore.

Layouts on the Used Market

The production run was consistent enough that buyers can expect a broadly uniform interior across examples. The forward cabin is typically arranged with a Pullman-style double berth set against the hull rather than in a cramped V-berth, and the forepeak houses a large private head and shower directly off that cabin — an unusually generous arrangement for the era. The saloon is wide and airy for a 40-footer, benefiting from the 12-foot-11-inch beam, and the U-shaped galley to starboard is properly offshore-configured, deep and secure when the boat is heeled. An aft cabin with a double berth is standard, and a second head is accessible from both the saloon and the aft quarters. The cockpit is large, protected, and purpose-built for long watches at sea, with a raised helmsman's seat that gives a clear view forward over the coachroof. The cutter rig with a staysail on a Hoyt jib boom is nearly universal across examples, though some owners have since removed the boom to simplify the foredeck.

Equipment and Common Upgrades

Used examples are commonly fitted for extended cruising. Autopilots, chartplotters, radar, and AIS are widely found aboard. Biminis and dodgers — often matched pairs forming a full cockpit enclosure — are nearly standard on boats that have seen serious offshore miles. Dinghy davits, cockpit showers, solar panels, and inverters are commonly fitted. Air conditioning appears frequently on boats that have spent time in tropical waters.

A step up in sophistication brings watermakers, bow thrusters, and hot-water systems, all of which appear often on well-equipped examples. Lithium battery banks and Starlink antenna installations are increasingly seen as the fleet ages into a generation of buyers who have retrofitted modern systems. The bow thruster is a particularly telling upgrade on a full-keel boat: handling in reverse and tight marina maneuvering is an acquired skill, and many owners have found it worth the investment.

Among owner-added gear, wind generators, chest freezers, code-zero reachers, and asymmetric spinnakers are occasional finds on passage-proven boats. A furling main in place of the original full-battened main shows up from time to time as a shorthanded-sailing simplification. Life rafts and EPIRBs vary widely in age and certification status and should be evaluated independently of the listing.

What to Inspect

The IP40's construction is genuinely robust, but age introduces specific concerns that a pre-purchase survey should address directly.

The chainplates are the single most important structural item to verify. Like many Island Packets of this era, the chainplates are encased in fiberglass, and over decades water can infiltrate and cause crevice corrosion that is invisible from the surface. If they have not been inspected or replaced within the last two decades, treat this as a mandatory item on any survey.

The PolyClad hull coating system has proven effective against osmosis, and the IP40 has a lower incidence of hull blistering than many contemporaries, but no GRP boat is entirely immune. A professional moisture survey of the hull is still worth doing. Occasional crazing in the gelcoat is a cosmetic reality on older examples and rarely indicates structural distress, but should be distinguished from deeper cracking.

Water ingress into the propane locker causing solenoid failure is a known irritant reported by long-distance voyagers. Check the locker drainage and the solenoid condition. Gennaker and spinnaker halyards, where they exit the mast, are subject to chafing at the exit point; inspect sheaves and exit holes carefully, and note whether any external halyard runs have been retrofitted.

The Yanmar diesel is generally long-lived when properly maintained, but at this age, service history matters enormously. Ask for logs. The Edson rack-and-pinion steering gives tactile feedback and is appreciated by experienced helmsmen, but the mechanism should be inspected for play and wear. The standard winch for raising the mainsail was considered undersized by some owners, and a replacement or additional winch purchase may have already occurred — this was flagged as a simple improvement worth making.

Availability and Buyer's Takeaway

The IP40 circulates most actively in North American waters, particularly along the US East Coast, Gulf Coast, and in the Pacific Northwest. Examples are widely available across the Caribbean and Mexico's Pacific and Gulf coasts, reflecting the model's strong following among voyagers who have worked their way south. Boats are also found in Australia and Central America, typically having completed extended passages from North America.

The used supply is meaningful but not inexhaustible — the model had a defined production run, and many hulls remain actively used by their owners. Patience in the search is usually rewarded with a better-equipped boat rather than a cheaper one.

Buyer's checklist:

• Commission a full structural survey with specific attention to chainplates
• Test all through-hulls and seacocks for operation and condition
• Verify propane locker drainage and solenoid function
• Inspect all halyards at mast exits for chafe
• Evaluate battery bank age and capacity relative to the installed loads
• Confirm service history and impeller/heat-exchanger records on the Yanmar
• Test the Edson steering for play throughout its range
• Assess life raft and EPIRB certification currency independently
• Assess the watermaker membrane age if fitted
• Budget for chainplate inspection or replacement if history is unknown