BoatsSound Interclub (Mower)

Sound Interclub (Mower)

Fractional Sloop · Fin Keel · 1926–1927

A Charles D. Mower-designed fractional sloop built for competitive one-design racing on Long Island Sound

Designed by Charles D. Mower, built by Henry B. Nevins.

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

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 29 — a moderate, middle-of-the-road motion.

Comfort ratio 29
CoastalBluewater

At 1.65 she sits well under the 2.0 line — a solidly ocean-capable hull for her size.

Capsize screening 1.65
LightHeavy

391 — very heavy for her waterline, a serious load-carrying cruiser.

Displacement / length 391
EasygoingPowered-up

20.7 — plenty of sail for her weight; lively and quick to respond.

Sail area / displacement 20.7
TenderStiff

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

Ballast 42%

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

  • Narrower than ~95% of boats her size on file

Compared with 2270 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
41.7%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
20.7
Displacement / length
390.5
Comfort ratio
28.9
Capsize screening
1.65
Hull speed
5.8 kn
Pounds / inch immersion
509
Hull
Hull type
Fin Keel
Construction
Wood
Ballast type
Lead
Production
Years built
1926–1927
Units built
27
Designer
Charles D. Mower
Builder
Henry B. Nevins, Nevins 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.

Ericson Yachts 298.71 mSame hull familyNear-identical lengthA 1970s masthead sloop with a 1.32-meter draft and a 45% ballast ratio, balancing coastal stability with shoal access
Dufour Arpege 309.14 mSame hull family0.4 m longerA record-breaking production of over 1500 units, this MORC-compliant racer-cruiser defined a new standard for the 30-foot class
San Juan 288.74 mSame hull familyNear-identical lengthA 1977 masthead sloop with a 50% ballast ratio and fin keel, designed for balanced performance in a compact 28-foot hull
Shannon Yachts 288.53 mSame hull family0.2 m shorterA fin-keeled cutter with a transom-hung rudder, built for coastal cruising with a stiff 38% ballast ratio
Ranger Yachts 29 (Mull)8.71 mSame hull familyNear-identical lengthA 1970s masthead sloop with a skeg-hung rudder, offering a balanced 1.98 capsize screening for coastal cruising
Islander Yachts 288.51 mSame hull family0.3 m shorterA Robert Perry-designed masthead sloop with over 400 built, favored by the designer himself for her balanced performance

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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