Design and Construction
The 445 has a solid fibreglass hull and a long, full-foil keel carrying lead ballast. A fully protected spade-type rudder hangs from the keel’s trailing edge.
The moulded fibreglass deck incorporates a structural grid and substantial coamings. The hull-deck join is typically an inward flange, bonded and mechanically fastened beneath the distinctive moulded rubrail.
Large fixed cabin-side windows are set into the moulded coachroof rather than mounted in small, individually bolted frames. The opening portlights are framed metal units, through-bolted and gasketed in the usual way.
The internal chainplates are tied into substantial glassed-in structures rather than simple deck-mounted straps. On this later model, they’re stainless steel, bonded and laminated into the hull structure below the caprail.
Rig, Stability, and Sailing Performance
The rig is consistently a cutter, with a self-tacking staysail and furling headsail. Most boats were delivered with in-mast furling mainsails on a masthead spar.
Published working sail area is 1,074 ft², including the mainsail and a 100% foretriangle. The in-mast mainsail accounts for roughly 400–430 ft². With a sail-area-to-displacement ratio of about 16.3 and a displacement-length ratio near 279, the 445 is a heavy cruiser with moderate sail area. Period expectations put close-hauled speed in moderate conditions at 4–5 knots.
A ballast-displacement ratio of 34.8% and a capsize screening figure around 1.76–1.8 place the boat firmly in the offshore-minded camp. Factory literature also quotes a STIX stability index of 53.
Cockpit and Accommodation
This is a centre-cockpit design with a deep, secure cockpit and twin wheels. The central cockpit shelters the primary cabin volume below, and the interior reflects the boat’s cruising mandate rather than any attempt at weekend simplicity.
The builder quotes saloon headroom of up to 7'3", with around 6'6" elsewhere. Factory literature also lists roughly 425 ft³ of storage throughout the interior.
Tankage
Tankage is generous for extended voyaging: about 160 US gallons of diesel, 260 US gallons of fresh water, and a holding tank of nearly 55 US gallons. Those capacities suit the long-range, self-sufficient profile implied by the full-keel hull and heavy displacement, reducing the need for constant replenishment.
Verdict
The Island Packet 445 is a purpose-built offshore cutter with conservative, well-executed construction and a cruising interior sized for long-distance liveaboard use. Its internal chainplate bonding, protected rudder, and full-keel lead ballast provide a conceptually simple, rugged platform. The trade-off is familiar: moderate sail area and heavy displacement favour stability and comfort over outright speed.
Pros
- Solid fibreglass hull with a full keel, 12,000 lb of lead ballast, and a protected spade-type rudder
- Internal stainless steel chainplates bonded into the hull structure
- Generous tankage: 160 gal fuel, 260 gal water, and 55 gal holding
- Centre-cockpit layout with a deep, secure cockpit and twin wheels
- Strong stability figures: STIX 53, CSF around 1.76–1.8, and B/D 34.8%
Cons
- Heavy displacement and a low SA/D of about 16.3 limit light-air performance
- The in-mast furling mainsail fitted to most boats won’t suit every sailor’s handling preferences
- No centreboard or twin-keel variant was available







