BoatsIsland Packet 370/379

Island Packet 370/379

Cutter · Long Keel w/rudder On Skeg · 2003–2019

A long-running cutter produced from 2003 to 2019, featuring a skeg-hung rudder and a stable 1.3-metre draft

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 370/379, on the water

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

Footage from Practical Sailor

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 moderate beam gives 32 — a sea-kindly motion in a seaway.

Comfort ratio 32
CoastalBluewater

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

Capsize screening 1.90
LightHeavy

315 — heavy for her waterline, built to carry stores and ride steadily.

Displacement / length 315
EasygoingPowered-up

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

Sail area / displacement 14.3
TenderStiff

40% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 40%

A capable cruiser that sits just inside the offshore line — coastal work with real passages in her.

  • Draws less than ~83% of boats her size on file
  • Beamier than ~92% of boats her size on file

Compared with 412 boats of the same type within a quarter of her length.

What the fleet has seen

The Island Packet 370/379, as the fleet has seen it

Derived from the videos the fleet has analysed of this model. ▶ marks open the moment aboard.

The Island PACKET 370/379 is a 11.5-meter cutter-rigged bluewater cruiser designed by Robert K. Johnson and built by Island Packet Yachts from 2003 to 2019. It features a long keel with a rudder on a skeg, prioritizing stability and structural integrity over speed.3:31 The model was designated 370 until 2016, then 379 from 2017 to 2019. Early models (2003-2007) had a displacement of 21,000 lbs, increasing to 23,800 lbs (dry) from 2009.3:25 Aboard *Practical Sailor*, the boat is noted for its steady motion in various sea states, though its long keel complicates maneuvering in reverse without a bow thruster.7:58 Engine access for impeller and oil changes is difficult, and exterior teak requires high upkeep.10:43 The interior includes a sea-going galley and a head with a separate shower.7:47 A 2004 Island Packet 370, named SEADUCTION, features a Hoyt boom for a self-tacking jib and a custom stern arch with solar panels, with all lines led to the cockpit for single-handed sailing.2:06

The living fleet

Sailed by the fleet

Where the fleet has filmed this boat.

Seen 3 times across 3 channels of the fleet.

Basemap © Wikimedia Commons · CC BY-SA 4.0

On the water

The Island Packet 370/379 on video

What broke, what changed

Gear aboard, as the crews told it

Moments from individual boats of this model that the fleet has filmed — one crew, one piece of kit, one day on the water. Not a review of the class, and not a count of anything.

  • ComparedRocnaweighed against Mantis

    An owner uses this anchor, and its welded design is compared favorably to the Mantis.

    aboard Practical Sailorseen March 20249:09

  • InstalledRaymarine

    The main helm features new Raymarine navigation equipment, including autopilot and instruments.

    aboard Berthon Internationalseen February 20253:13

  • WorkingVictron

    The speaker recommends the Victron 100/30 charge controller for a single 340-watt solar panel setup.

    aboard Lady K Sailingseen March 20245:35

  • WorkingYanmar

    The engine is noted for being oversized and contributing to comfortable sailing, despite difficult access for maintenance.

    aboard Practical Sailorseen March 20243:13

Each line is one crew's account of their own boat. Another Island Packet 370/379 may be fitted out entirely differently.

What they go for

Market signal

Where the fleet has seen this model come up for sale.

1seen for sale

  • This 2004 Island Packet 370, SEADUCTION, is currently ashore in Lymington and available to view seven days a week.

    from Berthon Internationalseen February 2025watch

From the fleet's own footage — our observed signal, not broker listings.

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
39.5%
Rig & sail area
Rig
Cutter
Ratios
SA / displacement
14.3
Displacement / length
314.7
Comfort ratio
32.0
Capsize screening
1.90
Hull speed
7.5 kn
Pounds / inch immersion
1449
Hull
Hull type
Long keel w/rudder on skeg
Construction
Fiberglass
Ballast type
Lead
Production
Years built
2003–2019
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.

Island Packet 38012.06 mSame hull family0.5 m longerA 12-metre blue-water cruiser featuring a 1.4-metre draft that balances offshore stability with shallow-water access
Can You Cross The Ocean on a CHEAP Sailboat? Ep 239 - Lady K Sailing1:44from Lady K Sailing
Island Packet 34911.66 mSame hull familyNear-identical lengthA Robert K. Johnson-designed cruiser featuring a shoal-draft long keel and a versatile Solent rig
WOW! A Channel for Cruisers is Harder Than Expected | Ep. 94:58from The On Deck Channel
Tayana 3711.18 mSame hull family0.4 m shorterA Robert Perry-designed long-keel cutter with a heavy displacement and a production run of nearly 600 hulls
Tayana 37: What You Should Know | Boat Review3:07from Practical Sailor
Cabo Rico 3811.58 mSame hull familyNear-identical lengthAn aft-cockpit evolution of the Tiburon 36, offering a heavy-displacement cutter platform for stable blue-water sailing
S/V Coralia - Coastal Sailing from Port Canaveral to Stuart FLfrom Hold Fast!
Shannon Yachts 38 PH11.51 mSame hull familyNear-identical lengthA long-keeled cutter designed by Stadel for offshore stability, offering a comfortable motion and steady passage-making
A Sailboat With No Keel? Shannon Shoalsailer 351:37from Lady K Sailing
Island Packet 3811.58 mSame hull familyNear-identical lengthA 38-foot cutter with a 1.52-metre draft, balancing a heavy 4535-kilogram ballast for offshore stability
The WORST Listings I’ve Ever Seen (15 MASSIVE Sailboat Red Flags)15:39from Be The Captain

The family

Boats like this

Nearby designs by size, type, and era — worth a look alongside her.

Island Packet 380A 12-metre blue-water cruiser featuring a 1.4-metre draft that balances offshore stability with shallow-water accessIsland Packet 37A 37-foot cutter with a 1.37-meter draft, balancing offshore stability with the ability to explore shallow anchoragesIsland Packet 350A 10.57-metre cutter featuring a 1.3-metre draft and a 47% ballast ratio for stable, shallow-water explorationIsland Packet 349A Robert K. Johnson-designed cruiser featuring a shoal-draft long keel and a versatile Solent rigIsland Packet 38A 38-foot cutter with a 1.52-metre draft, balancing a heavy 4535-kilogram ballast for offshore stability

Keep asking

The fleet has more to say

Search what's been said about the Island Packet 370/379, or ask a specific question — the answer comes back written out, with links to the moments it draws on.

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