Island Packet 38 Sailboat Review, Specs, and Listings

Bob Johnson·1986 – 1993·~188 hulls·Island Packet Yachts
Island Packet 38 drawingBuilder drawing
Hull Type
Monohull · long
Rig
Cutter
LOA
38' · 11.58 m
Disp.
21,500 lbs · 9,752 kg
First year
1986

The Island Packet 38 arrived at a moment when the American cruising market was searching for a boat that could be trusted far offshore without demanding a professional crew to sail it. Bob Johnson, an MITtrained naval architect who had worked in aerospace before designing boats, brought an engineer's discipline to the problem: the result was a 38foot cutter that sacrificed nothing to ease of use or structural integrity, even if it conceded quite a lot to outright speed. Between 1986 and 1993, Island Packet built 188 of them, and the design's enduring reputation among bluewater couples and liveaboards suggests Johnson got the balance right.

Measurements

Dimensions 01

Length Overall
38 ft
Length on deck
38 ft
Waterline Length
33 ft
Beam
12.67 ft
Draft
5 ft
Maximum Headroom
6.33 ft
Air Draft
51 ft

Construction & hull 02

Construction
Fiberglass
Hull Type
Monohull
Keel Type
Long
Rudder
1× Attached
Ballast
10,000 lbs (Lead)
Displacement
21,500 lbs
Water Capacity
187 gal
Fuel Capacity
57 gal

Rig & sails 03

Rigging Type
Cutter
Mainsail luff
40 ft
Mainsail foot
16 ft
Foretriangle height
46.5 ft
Foretriangle base
17.83 ft
Forestay Length (estimated)
49.8 ft
Sail Area
870 sqft

Calculations 04

Sail Area to Displacement Ratio
18
Ballast to Displacement Ratio
46.51
Displacement to Length Ratio
267.08
Comfort Ratio
32.74
Capsize Screening Ratio
1.82
Hull Speed
7.7 kn

Hull and Construction

The IP38's hull was molded in one piece using hand-laid fiberglass with strong triaxial glass, unified with a molded interior grid structure that ties the shell together without relying on secondary bonding. The deck uses a synthetic core material described by the builder as nearly impervious to rot — a meaningful departure from the balsa-cored decks that plagued so many contemporaries. Deck hardware was through-bolted with aluminum backing plates, and the deck-to-hull joint was secured with bolts, lock nuts and adhesives rather than just tabbing. Lead ballast is integrated into the full keel, not bolted externally, eliminating one common failure point. The hull's characteristic beige color is a minor but practical detail: repairs to cracks, crazing or blisters are easier to spot against that pale background during inspections.

Design Ratios and Seakeeping

The numbers tell a consistent story. A displacement-to-length ratio of 267 places the IP38 in moderate-displacement territory — heavy enough to carry cruising gear without dramatic performance loss, light enough to move in typical trade-wind conditions. The ballast-to-displacement ratio of 46.5% means the boat stands up well to her canvas in a blow, which matters more on a long passage than in a club race. Ted Brewer's comfort ratio of 32.7 lands in the range associated with a predictable and acceptable motion for most seasoned sailors. The capsize screening formula of 1.8 puts the IP38 below the 2.0 threshold that distinguishes safer offshore candidates. The full keel and skeg-hung rudder provide directional stability; owners report the stern lifts cleanly in a following sea, producing a dry ride rather than a sloshy one.

Rig and Sail Handling

Johnson gave the 38 a cutter rig — twin backstays, self-tailing Lewmar winches, a mainsheet traveler, a boom vang with preventer package, and a single-line reefing system all come standard. The club-footed furling staysail is a signature feature: it tacks itself, reducing the crew required to execute a maneuver. The running rigging dimensions are well documented, with the mainsail halyard at 7/16-inch by 121 feet and jib sheets at 1/2-inch by 160 feet — useful data when replacing aged cordage on a used boat. Standing rigging uses upper stays of 3/8-inch wire with specified Loos gauge tension readings that vary by ambient temperature, a level of detail that reflects factory investment in long-term support. Owners who have completed offshore passages note that a quality cruising chute keeps the boat moving in most conditions when the apparent wind drops below what the working sails can use efficiently.

Accommodations and Stowage

Below decks, the IP38 is unusually spacious for its waterline length. Headroom reaches six feet four inches, which is genuinely livable rather than merely adequate. The layout offers large staterooms fore and aft flanking the saloon, two heads, a U-shaped galley with an LPG range with oven, double deep sinks, a 14-cubic-foot icebox, teak dish rack, and hot and cold pressure water. Water capacity runs to 157 gallons, and four dorade vents assist airflow in the tropics. Owners who have completed extended voyages describe stowage capacity in generous terms — behind the settees, behind built-in furniture, and in oversized hanging lockers. Some have converted the forward head into a sail locker; others have turned the aft head into a dedicated navigation station, which illustrates how the layout accommodates different priorities without requiring structural modification.

Known Issues and Inspection Points

The chainplates are embedded in the fiberglass hull rather than bolted to the exterior, so inspecting them requires removing built-in furniture, followed by chiseling and grinding — this is a structural consideration that makes pre-purchase inspection genuinely difficult and must be planned for. Roller furling on early examples may be due for replacement given the production span. Engine maintenance history is a critical due-diligence item; fluid leaks, cracked hoses, and worn belts are the telltale signs of neglect in what is otherwise a reliable freshwater-cooled Yanmar diesel. The deck construction should be inspected for delamination, though Island Packet maintains that its synthetic core does not absorb moisture the way balsa does. Hull smoothness, assessed by sighting and touch, will reveal any blistering or prior repairs.

Refits and Upgrades

The most common owner upgrades follow a predictable pattern. Many owners have already replaced the standard mainsail with a full-batten version and a Dutchman flaking system. Upgrading from the stock two-blade propeller to a three-blade version improves motoring efficiency at the cost of a small amount of drag under sail. Electrical systems frequently receive attention: refrigeration, electric winches, and an electric windlass are the most common additions. The genoa is sometimes swapped for a larger sail than the stock 110% to improve light-air reaching. Owners planning ocean passages have fitted supplemental flexible fuel tanks to extend motoring range beyond the standard 57-gallon capacity. Because the IP38's systems are conventionally laid out and the engine is accessible via matching side panels and from behind the companionway ladder, most work can be completed by a competent owner mechanic or local yard.

The Verdict

The Island Packet 38 is what it was designed to be: a safe, heavy, solidly built, full-keel yacht intended for couples and families who want to go places without worry. It is not a racing boat and makes no pretense of being one. In moderate or heavy air it performs creditably; in light conditions it needs help from a cruising chute or drifter. The Category A offshore rating, conservative stability numbers, and genuine build quality have allowed IP38s to complete circumnavigations. The inaccessible chainplates are the single most significant structural concern and should drive any serious pre-purchase inspection.

Pros

  • Exceptional structural integrity with one-piece hull, triaxial laminate, and integrated lead ballast
  • Cutter rig with club-footed staysail simplifies shorthanded sail handling
  • Generous water and fuel tankage for extended passages
  • Six-foot-four headroom and voluminous stowage well suited to liveaboard use
  • Capsize screening formula and comfort ratio both in the offshore-capable range
  • Active owner community and documented factory support resources

Cons

  • Full keel and moderate displacement mean slow, unresponsive sailing in light air
  • Chainplates embedded in hull cannot be inspected without invasive disassembly
  • High freeboard and chopped transom produce an ungainly appearance
  • Older examples require attention to furling systems, standing rigging, and engine service history

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