BoatsEm 24

Em 24

Masthead Sloop · Fin w/transom Hung Rudder · First built 1971

A lightweight, high-performance masthead sloop designed by Ernesto Quaranta with a high sail area to displacement ratio

Designed by Ernesto Quaranta, built by Sibma Navale Italiana.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin w/transom Hung Rudder

Is it for you?

Character

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

TrailerableBeam 2.50 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 1,089 kg of hull, so roughly 1,700 kg on a trailer: check that against your own towing rating.Shoal draftDraws 1.14 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 11 — a quick, lively motion that feels every wave.

Comfort ratio 11
CoastalBluewater

At 2.45 she sits above the 2.0 line — beamy for her weight, and happiest coastal.

Capsize screening 2.45
LightHeavy

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

Displacement / length 148
EasygoingPowered-up

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

Sail area / displacement 26.0
TenderStiff

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

Ballast 42%

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

  • Lighter than ~84% of boats her size on file

Compared with 1233 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
Masthead Sloop
Ratios
SA / displacement
26.0
Displacement / length
147.9
Comfort ratio
10.9
Capsize screening
2.45
Hull speed
5.9 kn
Pounds / inch immersion
567
Hull
Hull type
Fin w/transom hung rudder
Construction
Plywood/multi-chine
Production
Years built
First built 1971
Designer
Ernesto Quaranta
Builder
Sibma Navale Italiana

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.

Sirius 7277.27 mSame hull familyNear-identical lengthA development of the Sirius 24, this fractional sloop features a fin keel with skeg-mounted rudder for balanced handling
J J/77.04 mSame hull family0.2 m shorterA 2024 fractional sloop with a shallow 1.16m draft and a high 23.55 sail-area-to-displacement ratio for responsive daysailing
J Boats Tillotson Pearson J/808.00 mSame hull family0.8 m longerA 1992 fractional sloop with a high 26.59 sail area-to-displacement ratio, engineered for rapid, agile performance
Bavaria Yachts 6066.50 mSame hull family0.7 m shorterA lightweight 6.5-meter fractional sloop with a high sail-area-to-displacement ratio for spirited coastal sailing
J Boats Tillotson Pearson J/247.32 mSame hull familyNear-identical lengthThe world's most popular one-design keelboat, featuring a light 1406kg displacement for responsive, agile handling
Dehler Yachts 25CR7.50 mSame hull family0.3 m longerA Van de Stadt-designed fractional sloop with a high sail area-to-displacement ratio built for spirited 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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