BoatsAquarius 21

Aquarius 21

Fractional Sloop · Keel/centreboard · 1969–1977

A 6.4-metre keel-centerboard sloop from the 1970s, built for trailerable versatility and shoal-water exploration

Designed by Peter Barrett, built by Coastal Recreation Inc.

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

Is it for you?

Character

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

TrailerableBeam 2.38 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 862 kg of hull, so roughly 1,450 kg on a trailer: check that against your own towing rating.Ramp-launchableAbout 862 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 0.30 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 beamy beam gives 10 — a quick, lively motion that feels every wave.

Comfort ratio 10
CoastalBluewater

At 2.53 she sits above the 2.0 line — beamy for her weight, and happiest coastal.

Capsize screening 2.53
LightHeavy

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

Displacement / length 140
EasygoingPowered-up

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

Sail area / displacement 17.0
TenderStiff

35% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 35%

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

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
35.0%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
17.0
Displacement / length
139.6
Comfort ratio
9.9
Capsize screening
2.53
Hull speed
5.7 kn
Pounds / inch immersion
510
Hull
Hull type
Keel/Cbrd.
Construction
Fiberglass
Production
Years built
1969–1977
Designer
Peter Barrett
Builder
Coastal Recreation Inc

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.

Catalina Yachts 227.26 mSame hull family0.9 m longerA prolific masthead sloop with 15,000 built, offering a versatile swing-keel design for trailerable coastal cruising
Dufour Yachts T66.15 mSame hull family0.3 m shorterA lightweight 800kg fractional sloop with a high sail-area-to-displacement ratio for spirited performance in light air
Marshall Marine Corporation Sanderling5.54 mSame hull family0.9 m shorterA gaff-rigged catboat based on a 1941 design, featuring a shallow-draft keel-centerboard hull for versatile day sailing
Macgregor 26X7.87 mSame hull family1.5 m longerA water-ballasted sail-power hybrid designed for versatile coastal cruising and easy trailering
Cal Boats 247.43 mSame hull family1.0 m longerThe inaugural Jensen Marine Cal model, this fractional keel-centerboard sloop was built for shoal-water versatility

The family

Boats like this

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

Keep looking

Nothing filmed of this one yet

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

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