BoatsIsland Packet 42MS

Island Packet 42MS

Masthead Sloop · Long Keel w/rudder On Skeg · First built 2025

A heavy-displacement motorsailer featuring a long keel and an optional Solent rig for versatile offshore cruising

Designed by Ipy Design Team.

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

Is it for you?

Character

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

LivelySea-kindly

Her heavy displacement on a narrow beam gives 45 — a heavy, notably soft motion offshore.

Comfort ratio 45
CoastalBluewater

At 1.62 she sits well under the 2.0 line — a solidly ocean-capable hull for her size.

Capsize screening 1.62
LightHeavy

351 — very heavy for her waterline, a serious load-carrying cruiser.

Displacement / length 351
EasygoingPowered-up

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

Sail area / displacement 9.9
TenderStiff

30% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.

Ballast 30%

Built heavy and sea-kindly — a boat made to cross oceans and forgive a rough night.

  • Heavier than ~89% of boats her size on file
  • Draws less than ~76% of boats her size on file
  • Beamier than ~77% of boats her size on file

Compared with 306 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
30.3%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
9.9
Displacement / length
351.1
Comfort ratio
44.6
Capsize screening
1.62
Hull speed
7.9 kn
Pounds / inch immersion
1614
Hull
Hull type
Long keel w/rudder on skeg
Construction
Fiberglass
Ballast type
Lead
Production
Years built
First built 2025
Designer
IPY design team
Builder
Island Packet Yachts

Boats like this, on the water

Nobody has filmed this one — but these are close.

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.

Dolphin 47 (Alden)14.30 mSame hull family0.9 m longerA heavy-displacement staysail ketch from the board of John G. Alden, built for comfortable, stable blue-water cruising
Explorer 45 (Huntingford)13.79 mSame hull family0.4 m longerA long-keeled staysail ketch designed by Stan Huntingford for stable, comfortable blue-water passage making
Westsail 4213.08 mSame hull family0.3 m shorterA William Crealock-designed long-keel cutter sharing its hull mold with the aft-cockpit 43 for heavy-weather stability
Panda 4012.16 mSame hull family1.3 m shorterA Robert Perry-designed cutter with a long keel and heavy displacement, sharing the classic lines of the Baba 40
Baba 4012.14 mSame hull family1.3 m shorterA 13-ton cutter with a 41.5 comfort ratio, built between 1980 and 1982 for steady, long-distance passage making
Hans Christian 4312.99 mSame hull family0.4 m shorterA 12.99-meter staysail ketch with a long keel and high comfort ratio, built from 1974 to 1992 for steady offshore work

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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