BoatsIrwin Yacht 43 (1971)

Irwin Yacht 43 (1971)

Masthead Sloop · Keel/centreboard · First built 1971

A 13.26-metre masthead sloop with a deep 2.44-metre draft and keel-centreboard configuration for offshore stability

Designed by Ted Irwin.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Keel/Cbrd.

See her sail

The Irwin Yacht 43 (1971), on the water

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

Footage from Sailing Into the Mystic

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 39 — a sea-kindly motion in a seaway.

Comfort ratio 39
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

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

Displacement / length 313
EasygoingPowered-up

17.3 — moderate power for her weight; steady, all-round performance.

Sail area / displacement 17.3
TenderStiff

46% of her weight is ballast — stiff, standing up well to her sails.

Ballast 46%

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

What the fleet has seen

The Irwin Yacht 43 (1971), as the fleet has seen it

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

The Irwin Yacht 43, designed by Ted Irwin and built by Irwin Yacht, Marine Corp., and Irwin Yachts, is a masthead sloop with a keel/centerboard hull, produced from 1971 to the present. This 13.26-meter (43-foot) sailboat has a beam of 3.51 meters and a draft of 2.44 meters, displacing 10,433 kg. Fixed keel and yawl rig variants were available, as was an optional diesel engine. Aboard *Sailing Into the Mystic*, a 1988 Irwin MKIII CC, the center-cockpit layout includes a salon with 6'3" standing headroom, a three-burner stove, and a large fridge-freezer.0:51 The master suite provides direct access to the engine compartment, which is also accessible from the galley.7:56 The vessel is equipped with BNG radar, wind instruments, a roller furler, and two large anchors, with solar panels and a barbecue mounted in the cockpit.7:26 The crew of *Sailing Into the Mystic* replaced all through-hulls and ball valves during a haul-out, noting the hull's thickness and structural integrity, and plans to relocate the fiberglass-encased chain plates to the exterior for easier inspection. *Salt & Tar* sailed an Irwin 43 named Windswept in 20-knot winds, testing its storage and organizational solutions. *Lady K Sailing* notes that 1980s Irwin sailboats often have poor construction, with deck hardware screwed directly into fiberglass or wooden toe rails, leading to water intrusion, rot, and soft decks.4:14 These boats are characterized by heavy, high-windage hulls that perform poorly under sail, often requiring motor-sailing.7:11 Interior layouts frequently lack effective sea berths, adequate handholds, and ergonomic fiddles.6:38

The living fleet

Sailed by the fleet

Where the fleet has filmed this boat.

Seen 2 times across 2 channels of the fleet.

Basemap © Wikimedia Commons · CC BY-SA 4.0

On the water

The Irwin Yacht 43 (1971) on video

What they go for

Market signal

Where the fleet has seen this model for sale, and the asking prices that came with it.

1seen for sale
US$60,000Median asking

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
45.6%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
17.3
Displacement / length
313.4
Comfort ratio
38.8
Capsize screening
1.62
Hull speed
7.6 kn
Pounds / inch immersion
1315
Hull
Hull type
Keel/Cbrd.
Construction
Fiberglass
Production
Years built
First built 1971
Designer
Ted Irwin
Builder
Irwin Yacht, Marine Corp

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.

Pearson Yachts 4012.17 mSame hull family1.1 m shorterA 12-metre masthead sloop with a deep 2.87-metre draft and high ballast ratio, built for stability and speed
Bristol Yachts 41.112.54 mSame hull family0.7 m shorterA masthead sloop with a deep 3.05-metre keel-centreboard draft, bridging the gap between the 411 and 43.3 models
Southerly 135 MK 113.41 mSame hull family0.2 m longerA Dick Carter-designed masthead sloop featuring a versatile swing keel for deep-water performance and shoal-draft access
Ovni 43512.90 mSame hull family0.4 m shorterA 12.9-metre aluminum cutter with a lifting keel, optimized for offshore stability and shoal-water exploration
Alden Yachts 44 MII13.46 mSame hull family0.2 m longerAn evolution of the Alden 44 featuring a modified rudder, repositioned propeller, and updated interior layout
Brewer 4413.41 mSame hull family0.2 m longerA stretched evolution of the 12.8 featuring a reverse transom and a versatile keel-centerboard configuration

The family

Boats like this

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

Keep asking

The fleet has more to say

Search what's been said about the Irwin Yacht 43 (1971), or ask a specific question — the answer comes back written out, with links to the moments it draws on.

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