BoatsIsland Packet 485/525

Island Packet 485/525

Cutter · Long Keel w/rudder On Skeg · First built 2002

A heavy-displacement 15.9-meter cutter with a 39.24 comfort ratio, designed for stable, long-range blue-water passage

Designed by Robert K. Johnson.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Long Keel w/rudder On Skeg

See her sail

The Island Packet 485/525, on the water

The fleet's own footage — the truest look at how she really moves.

Footage from Quantum Sails

Is it for you?

Character

Where this design lands on the numbers a shopper trusts — read straight from her own ratios.

LivelySea-kindly

Her moderate displacement on a narrow beam gives 39 — a sea-kindly motion in a seaway.

Comfort ratio 39
CoastalBluewater

1.74 — just under the 2.0 offshore line; her beam is modest for her weight.

Capsize screening 1.74
LightHeavy

245 — moderately heavy for her waterline, a balanced cruising weight.

Displacement / length 245
EasygoingPowered-up

13.6 — modest power for her weight; easygoing rather than lively, and happier with a breeze.

Sail area / displacement 13.6
TenderStiff

36% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 36%

A capable offshore cruiser with an easy motion when the sea gets up.

  • Heavier than ~91% of boats her size on file
  • Draws less than ~75% of boats her size on file
  • Beamier than ~95% of boats her size on file

Compared with 141 boats of the same type within a quarter of her length.

The record

Full specifications

The complete reference set — tap any figure to switch between metric and imperial.

Dimensions
Weights
Ballast / displacement
36.2%
Rig & sail area
Rig
Cutter
Ratios
SA / displacement
13.6
Displacement / length
245.0
Comfort ratio
39.2
Capsize screening
1.74
Hull speed
8.8 kn
Pounds / inch immersion
2365
Hull
Hull type
Long keel w/rudder on skeg
Construction
Fiberglass
Ballast type
Lead
Production
Years built
First built 2002
Designer
Robert K. Johnson
Builder
Island Packet Yachts

Boats like this, on the water

More boats like her, on the water

Comparable boats the fleet has on camera: same type, within a quarter of her length. Open the boat, or watch the video — a timestamp means she only appears in passing.

Cabo Rico 5617.07 mSame hull family1.2 m longerA heavy-displacement cutter designed by Chuck Paine, featuring a long keel and high comfort ratio for stable blue-water cruising
Island Packet 43914.33 mSame hull family1.6 m shorterA modern 2021-launched cutter with a heavy-displacement hull and a 1.52-meter draft for stable, deep-water cruising
Island Packet 4413.41 mSame hull family2.5 m shorterA 13.4-meter blue-water cutter with a 1.47-meter draft, balancing heavy-displacement stability with shoal-water access
Hans Christian 4312.99 mSame hull family2.9 m shorterA 12.99-meter staysail ketch with a long keel and high comfort ratio, built from 1974 to 1992 for steady offshore work
Vagabond 4714.20 mSame hull family1.7 m shorterA William Garden-designed staysail ketch with a long keel, built for heavy-displacement offshore comfort since 1972
Formosa Yachts 5115.49 mSame hull family0.4 m shorterA William Garden-designed staysail ketch with a long keel that served as the foundation for multiple production yachts

The family

Related models

The designs closest to hers — usually the rest of the builder's range, sometimes the same hull sold under another name.

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