The Island Packet 445, a long-keeled cutter, was designed by Bob Johnson and built in the USA by Island Packet Yachts.
Underwater Profile: Long Keel
Hull Material: GRP (fiberglass)
Length Overall: 45'9" (13.94m)
Waterline Length: 38'1" (11.61m)
Beam: 14'4" (4.37m)
Draft: 5'0" (1.52m)
Rig Type: Cutter
Displacement: 34,500lb (15,649kg)
Designer: Bob Johnson
Builder: Island Packet Yachts (USA)
Year First Built: 2004
1. Sail Area/Displacement Ratio: 16.3
2. Ballast/Displacement Ratio: 34.8
3. Displacement/Length Ratio: 279
4. Comfort Ratio: 38.1
5. Capsize Screening Formula: 1.8
1. A Sail Area/Displacement Ratio of 16.3 suggests that the Island Packet 445 will, in the right conditions, approach her maximum hull speed readily and satisfy the sailing performance expectations of most cruising sailors.
2. A Ballast/Displacement Ratio of 34.8 means that the Island Packet 445 will have a tendency to heel excessively in a gust, and may need to be reefed early to keep her sailing comfortably upright in a moderate breeze.
3. A Displacement/Length Ratio of 279, tells us the Island Packet 445 is clearly a heavy displacement cruising boat. You can load her down with all your cruising gear and equipment and it will hardly affect her waterline. Not an ideal choice for coastal sailing, but she'll come into her own on an offshore passage in testing conditions.
4. Ted Brewer's Comfort Ratio of 38.1 suggests that crew comfort of a Island Packet 445 in a seaway is similar to what you would associate with the motion of a moderate bluewater cruising boat - a predictable and acceptable motion for most seasoned sailors.
5. The Capsize Screening Formula (CSF) of 1.8 tells us that a Island Packet 445 would be a safer choice of sailboat for an ocean passage than one with a CSF of more than 2.0.
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