BoatsR.n.s.a. Twenty-Four

R.n.s.a. Twenty-Four

Fractional Sloop · Long Keel w/trans. Hung Rudder · First built 1947

A pioneering offshore one-design conceived by Capt. J.H. Illingworth that claimed the 1949 RORC small-class championship

Designed by Laurent Giles & Jack Laurent Giles, built by Camper.

LOA
Beam
Draft (max)
Displacement
Hull type
Long Keel w/trans. Hung Rudder

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 39 — a sea-kindly motion in a seaway.

Comfort ratio 39
CoastalBluewater

At 1.41 she sits well under the 2.0 line — a solidly ocean-capable hull for her size.

Capsize screening 1.41
LightHeavy

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

Displacement / length 312
EasygoingPowered-up

14.0 — modest power for her weight; easygoing rather than lively, and happier with a breeze.

Sail area / displacement 14.0

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

  • Draws more than ~86% of boats her size on file
  • Narrower than ~94% of boats her size on file

Compared with 428 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
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
14.0
Displacement / length
311.6
Comfort ratio
38.6
Capsize screening
1.41
Hull speed
6.6 kn
Pounds / inch immersion
643
Hull
Hull type
Long keel w/trans. hung rudder
Construction
Wood
Production
Years built
First built 1947
Units built
15
Designer
Laurent Giles, Jack Laurent Giles
Builder
Camper, Nicholson, Nicholsons

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.

Bayfield 30/329.75 mSame hull familyNear-identical lengthA rare 32C variant featuring a tall rig, built in a limited run of five hulls for increased sail area
Bayfield 32 Boat Tour - The Canadian Cruiser That Crossed the Atlanticfrom Practical Sailor
Elizabethan 319.45 mSame hull family0.3 m shorterA David Thomas-designed long-keeled masthead sloop with a 50% ballast ratio, built for stability and offshore comfort
My dream world Cruising Boat24:19from Sailing Gently
Mariner 329.70 mSame hull familyNear-identical lengthA long-keeled masthead ketch by Clair Oberly, featuring a distinctive Clipper bow and an open, taffrail-surrounded cockpit
Salt & Tar: Ep.286- Night Runner9:33from Salt & Tar
Pacific Seacraft Orion 279.42 mSame hull family0.3 m shorterA heavy-displacement cutter by Henry Mohrschladt, built for offshore stability with a long keel and conservative rig
Small Boat, Big Keel Why This 27 Footer Works3:15from Practical Sailor
Alberg 309.22 mSame hull family0.5 m shorterA classic Carl Alberg long-keeled masthead sloop built for over two decades, offering a stable and comfortable motion
1968 Alberg 30 Refit Part 1 Exterior 20160:08from Atom Voyager
Allied Boat Co. Seawind9.30 mSame hull family0.4 m shorterA Thomas Gillmer-designed masthead ketch with a long keel, marking both the beginning and the end of the Allied Boat Co.
Sailing Channel Theater: EP5 - Dancing With The Wind0:48from TheSailingChannel.TV

The family

Boats like this

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

Rustler Yachts 24A modern evolution of a 1960s David Boyd 6-metre design, this fractional long-keeler blends classic lines with agilityS&s 24A Sparkman & Stephens keel-version of the Dolphin 24, this masthead sloop offers a stable, classic design from 1968Rl 24A high-performance fractional sloop with a swing keel, produced in four marks and over 500 units under US licenceNorth Sea 24A successful racer built in epoxy-composite iroko strip-plank and the design predecessor to the Rustler 31 and 36Westerly Marine Ltd. Gk 24A quarter-tonner built for IOR racing, featuring a fin keel and transom-hung rudder for responsive handlingLapworth 24An economy-focused fractional sloop with a fin keel, offered as a more accessible alternative to the standard model

Keep looking

Nothing filmed of this one yet

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

Search the fleet for boats like thisAsk the fleet about the R.n.s.a. Twenty-Four

The newsletter

New boats, new stories. Every week, everywhere.

One email from the fleet — boats newly added, videos newly analysed. No noise.

Report an issue