BoatsAntrim 27

Antrim 27

Fractional Sloop · Lifting Keel · First built 1996

Also marketed as the Ultimate 27, this ultralight fractional sloop features a lifting keel for performance and access

Designed by Jim Antrim, built by Ultimate Sailboats Internation.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Lifting Keel

Is it for you?

Character

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

Ramp-launchableAbout 1,179 kg of hull, with a keel that raises or a draught shallow enough to float off a trailer — she can go back on the trailer at the ramp, not only into the water.Shoal draughtDraws 1.01 m, board up where she has one — creeks, sandbars and thin anchorages most keels have to stay out of.
LivelySea-kindly

Her light displacement on a moderate beam gives 8 — a quick, lively motion that feels every wave.

Comfort ratio 8
CoastalBluewater

At 2.69 she sits above the 2.0 line — beamy for her weight, and happiest coastal.

Capsize screening 2.69
LightHeavy

87 — light for her waterline, so she is easily driven and quick to accelerate.

Displacement / length 87
EasygoingPowered-up

41.5 — a lot of sail for her weight; powered-up and eager, a real performer.

Sail area / displacement 41.5
TenderStiff

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

Ballast 40%

Light and lively — happiest day-sailing and coastal-hopping in settled weather.

  • Beamier than ~75% of boats her size on file

Compared with 562 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
40.4%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
41.5
Displacement / length
86.6
Comfort ratio
8.3
Capsize screening
2.69
Hull speed
6.5 kn
Pounds / inch immersion
785
Hull
Hull type
Lifting Keel
Construction
Fiberglass
Production
Years built
First built 1996
Designer
Jim Antrim
Builder
Ultimate Sailboats Internation

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.

Deltania Yachts 267.92 mSame hull family0.6 m shorter
She Bought a Sailboat Instead of an Apartment to Live In | #SAL #3576:33from Hashtag Sal
RS 216.40 mSame hull family2.1 m shorter
Training Sea Cadet Instructors | RS21 Keelboat Sailing – Welsh Harp1:37from City Sailing
Melges 247.32 mSame hull family1.2 m shorterA 7.32-metre sportboat with a lifting keel and a 32.09 sail-area-to-displacement ratio built for rapid planing
A Conversation About Sails With Our Sailmaker [Ep. 165]2:38from Sailing Sweet Ruca
Catalina Yachts 227.26 mSame hull family1.2 m shorterA prolific masthead sloop with 15,000 built, offering a versatile swing-keel design for trailerable coastal cruising
The ZERO KEEL and ALPHA RUDDER - Are Kraken Yachts Really THAT GOOD?9:27from Practical Sailor
Seaward Yachts 26RK8.66 mSame hull family0.2 m longerA fractional sloop with a 1.83m lifting bulb keel, offering deep-water performance in a trailerable 8.66m package
This Boat Did EVERYTHING! (Perfect 6 Day Trip)8:36from Adventureman Dan
Cal Boats 247.43 mSame hull family1.1 m shorterThe inaugural Jensen Marine Cal model, this fractional keel-centerboard sloop was built for shoal-water versatility
Aladino Sails The Pacific Alone.2:08from Sailing Magic Carpet

The family

Boats like this

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

Hunter Marine 27-2A 27-foot fractional sloop with a 40% ballast ratio, offering a stiff and stable platform for coastal cruisingAndrews 28A high-performance fractional sloop by Alan Andrews featuring a lifting keel and a high sail-area-to-displacement ratioHunter Marine 27A John Cherubini-designed masthead sloop built for a decade, featuring a skeg-mounted rudder and shoal-draft options

Keep looking

Nothing filmed of this one yet

Two ways to keep looking — both search what the fleet has actually recorded.

Search the fleet for boats like thisAsk the fleet about the Antrim 27

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