BoatsStortriss MKI

Stortriss MKI

Fractional Sloop · Fin w/transom Hung Rudder · 1966–1977

A Per Brohall-designed fractional sloop with a high sail-area-to-displacement ratio for lively performance in a light hull

Designed by Per Brohall, built by ABC Fabrikerna.

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 2.00 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 425 kg of hull, so roughly 1,050 kg on a trailer: check that against your own towing rating.Ramp-launchableAbout 425 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 0.76 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 beamy beam gives 7 — a quick, lively motion that feels every wave.

Comfort ratio 7
CoastalBluewater

At 2.68 she sits above the 2.0 line — beamy for her weight, and happiest coastal.

Capsize screening 2.68
LightHeavy

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

Displacement / length 114
EasygoingPowered-up

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

Sail area / displacement 23.3
TenderStiff

44% of her weight is ballast — stiff, standing up well to her sails.

Ballast 44%

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

  • Lighter than ~89% of boats her size on file
  • Narrower than ~79% of boats her size on file

Compared with 203 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
43.5%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
23.3
Displacement / length
114.1
Comfort ratio
7.4
Capsize screening
2.68
Hull speed
5.3 kn
Pounds / inch immersion
361
Hull
Hull type
Fin w/transom hung rudder
Construction
Fiberglass
Production
Years built
1966–1977
Designer
Per Brohall
Builder
ABC fabrikerna

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.

Allegro (Westell)6.32 mSame hull family1.1 m longerA John Westell-designed fractional sloop with twin keels, built for performance and shoal water access since 1956
Abbott Boats Inc. Yngling6.35 mSame hull family1.1 m longerA 6.35-metre fractional sloop that served as the Olympic class for women sailors from 2004 through 2008
Pogo 26.50 mSame hull family1.3 m longerA 6.5-metre ultralight racer with a 37.87 sail-area-to-displacement ratio built for high-speed planing
Birdyfish S4.20 mSame hull family1.1 m shorterA 4.2-metre foiling monohull with a 100kg displacement and a high-performance Marconi cat rig
Rio 206.10 mSame hull family0.9 m longerA lightweight, high-performance masthead sloop designed by Roberto Barros with a lively sail area-to-displacement ratio
Leisure Yachts 175.18 mSame hull familyNear-identical lengthA prolific twin-keel masthead sloop designed for shoal water, with thousands produced across three decades

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.

The newsletter

New boats, new stories, from everywhere.

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

Report an issue