BoatsOysterman 23

Oysterman 23

Masthead Sloop · Cbrd w/outboard Rudder · First built 1977

A lightweight, high-performance masthead sloop designed by Chappelle for shallow-water exploration.

Designed by Chappelle, built by Menger Enterprises.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Cbrd w/outboard Rudder

Is it for you?

Character

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

TrailerableBeam 2.44 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 1,179 kg of hull, so roughly 1,800 kg on a trailer: check that against your own towing rating.Ramp-launchableAbout 1,179 kg of hull, with a keel that raises or a draft shallow enough to float off a trailer — she can go back on the trailer at the ramp, not only into the water.Shoal draftDraws 0.15 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 narrow beam gives 10 — a quick, lively motion that feels every wave.

Comfort ratio 10
CoastalBluewater

At 2.33 she sits above the 2.0 line — beamy for her weight, and happiest coastal.

Capsize screening 2.33
LightHeavy

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

Displacement / length 124
EasygoingPowered-up

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

Sail area / displacement 31.4
TenderStiff

19% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.

Ballast 19%

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

  • Lighter than ~87% of boats her size on file
  • Draws less than ~100% of boats her size on file
  • Narrower than ~86% of boats her size on file

Compared with 418 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
19.2%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
31.4
Displacement / length
123.9
Comfort ratio
10.4
Capsize screening
2.33
Hull speed
6.2 kn
Pounds / inch immersion
603
Hull
Hull type
Cbrd w/outboard rudder
Construction
Fiberglass
Ballast type
Galvanized steel centerboard
Production
Years built
First built 1977
Designer
Chappelle
Builder
Menger Enterprises

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 family2.3 m shorterA swing-keel masthead sloop with 15,000 units sold, offering a highly versatile and trailerable coastal cruiser
Cal Boats 247.43 mSame hull family2.1 m shorterThe inaugural Jensen Marine Cal model, this fractional keel-centerboard sloop was built for shoal-water versatility
Macgregor 26X7.87 mSame hull family1.7 m shorterA water-ballasted sail-power hybrid designed for versatile coastal cruising and easy trailering
Melges 247.32 mSame hull family2.2 m shorterA 7.32-meter sportboat with a lifting keel and a 32.09 sail-area-to-displacement ratio built for rapid planing
Jeanneau Sun Odyssey 3510.67 mSame hull family1.1 m longerA Marc Lombard-designed fractional sloop featuring a lifting keel and twin rudders for versatile shoal-water cruising

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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