BoatsAlberg 23

Alberg 23

Fractional Sloop · Long Keel · First built 1970

A 1970-era fractional sloop with a long keel that was marketed as a variation of the Sea Sprite 23 Weekender

Designed by Carl Alberg, built by C. E. Ryder.

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

Is it for you?

Character

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

TrailerableBeam 2.13 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 1,520 kg of hull, so roughly 2,100 kg on a trailer: check that against your own towing rating.Shoal draftDraws 0.94 m, board up where she has one — creeks, sandbars and thin anchorages most keels have to stay out of.
LivelySea-kindly

Her heavy displacement on a moderate beam gives 21 — a moderate, middle-of-the-road motion.

Comfort ratio 21
CoastalBluewater

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

Capsize screening 1.87
LightHeavy

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

Displacement / length 349
EasygoingPowered-up

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

Sail area / displacement 17.9
TenderStiff

42% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 42%

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

  • Narrower than ~89% of boats her size on file

Compared with 170 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
41.8%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
17.9
Displacement / length
348.5
Comfort ratio
21.4
Capsize screening
1.87
Hull speed
5.4 kn
Pounds / inch immersion
406
Hull
Hull type
Long Keel
Construction
Fiberglass
Production
Years built
First built 1970
Designer
Carl Alberg
Builder
C. E. Ryder

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.

Flicka 207.32 mSame hull family0.5 m longerA Bruce Bingham-designed cutter with a long keel, originally offered as amateur plans before becoming a production classic
Pacific Seacraft Dana 248.31 mSame hull family1.5 m longerA heavy-displacement W.I.B. Crealock cutter designed for offshore stability and serious coastal cruising
Bristol Yachts 247.49 mSame hull family0.6 m longerA Paul Coble-designed masthead sloop with a long keel and over 50% ballast ratio for stable coastal cruising
Vancouver 278.23 mSame hull family1.4 m longerA Robert B. Harris-designed cutter with a long keel, built across two continents to provide a stiff, comfortable passage
Cape Dory 288.56 mSame hull family1.7 m longerA classic Carl Alberg full-keel masthead sloop designed for steady, comfortable cruising
Cape Dory 278.25 mSame hull family1.4 m longerA 1977-1985 production masthead sloop featuring a 40% ballast ratio for stability in a traditional full-keel hull

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.

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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