This is a heavy, directionally stable offshore cruiser rather than a light-air sprinter. Her hull, rig, and interior all reflect that emphasis.
Design and Construction
By textbook definition, the Island Packet 45 is a full-keeled yacht, and the keel form shapes her overall character. There’s no distinction between the forefoot and the keel’s leading edge. This removes the separate leading bite found on cutaway or fin keels and makes the boat forgiving to sail.
The large rudder is hung with some of its balance area ahead of the pivot, reducing helm loads despite the long-keel configuration. The solid-fiberglass hull carries lead ballast encapsulated inside the keel cavity.
The numbers reinforce the boat’s cruising bias. On a 37'7" waterline, the displacement-to-length ratio is 238—or 239 by another reading—and the length-to-beam ratio is 3.39. These figures place her firmly in the heavy, voluminous camp.
Rig and Handling
The cutter rig uses a short bowsprit to move the headstay forward. That opens the foretriangle, allowing the jib and staysail to be carried together without fouling.
Sail area is 931 square feet for the basic rig and 1,100 square feet with the staysail included. The sail-area-to-displacement ratio is 16 on the foretriangle alone and 17.18 when the staysail is counted. Those figures are low for a performance hull but suit a boat whose stability comes from ballast and hull form rather than canvas.
The balanced rudder keeps the helm manageable, while the full keel helps the boat track steadily. That combination favors long offshore passages over tight maneuvering in harbor.
Accommodations and Systems
The interior is arranged for two couples. Both staterooms adjoin heads, giving each pair private facilities. Forward, a Pullman-style berth provides a proper double, with the head located farther forward. The arrangement sacrifices some floor space in exchange for the double berth and separate sanitation.
The main layout includes a navigation station large enough for two people to stand and study charts together. A wet locker sits outboard of the nav seat, providing a place for foul-weather gear.
Tankage is substantial, with 240 gallons of water and 140 gallons of diesel to support extended liveaboard timelines. A 62-horsepower, fresh-water-cooled diesel provides a margin of auxiliary power unusual in this size bracket.
The Verdict
The Island Packet 45 is a purpose-built bluewater cruiser. Her full keel, encapsulated ballast, and balanced rudder provide a forgiving, directionally stable platform, while substantial tankage and a two-couple layout suit extended cruising.
She isn’t a strong light-air performer. Instead, her rig and hull numbers describe a boat designed around passage-making comfort and structural simplicity rather than speed.
Pros
- Full keel with no distinction at the forefoot makes her forgiving under sail
- Balanced rudder reduces helm loads on a long-keel hull
- Two-couple layout with adjoining heads and a large navigation station
- 140-gallon fuel and 240-gallon water capacities support long-term autonomy
Cons
- Low sail-area-to-displacement ratio limits light-air performance
- Heavy displacement and a full keel trade maneuverability for stability






