BoatsCygnus 20 FK

Cygnus 20 FK

Fractional Sloop · Fin w/transom Hung Rudder · First built 1965

A lightweight fractional sloop designed by George Hinterhoeller in 1963, originally known as the HR 20.

Designed by George Hinterhoeller, built by Hinterholler Ltd.

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 2.13 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 431 kg of hull, so roughly 1,050 kg on a trailer: check that against your own towing rating.Ramp-launchableAbout 431 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 0.84 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 6 — a quick, lively motion that feels every wave.

Comfort ratio 6
CoastalBluewater

At 2.85 she sits above the 2.0 line — beamy for her weight, and happiest coastal.

Capsize screening 2.85
LightHeavy

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

Displacement / length 79
EasygoingPowered-up

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

Sail area / displacement 29.6
TenderStiff

15% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.

Ballast 15%

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

  • Lighter than ~97% of boats her size on file
  • Draws less than ~79% of boats her size on file
  • Narrower than ~83% of boats her size on file

Compared with 563 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
14.7%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
29.6
Displacement / length
79.1
Comfort ratio
6.0
Capsize screening
2.85
Hull speed
5.6 kn
Pounds / inch immersion
438
Hull
Hull type
Fin w/transom hung rudder
Construction
Fiberglass
Ballast type
Iron
Production
Years built
First built 1965
Designer
George Hinterhoeller
Builder
Hinterholler Ltd, Clarkcraft, Skene Boats Ltd, Hinterhoeller Yachts Ltd

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.

J Boats J/706.93 mSame hull family0.8 m longerA high-performance fractional sloop designed by Alan Johnstone, with over 1,100 units delivered for one-design racing
Santana 206.16 mSame hull familyNear-identical lengthA high-performance fractional sloop with a 1996 deck redesign that added an open transom and a roomier cockpit
J Boats Tillotson Pearson J/226.86 mSame hull family0.8 m longerA high-performance fractional sloop with a high sail-area-to-displacement ratio designed for competitive one-design racing
J J/77.04 mSame hull family0.9 m longerA 2024 fractional sloop with a shallow 1.16m draft and a high 23.55 sail-area-to-displacement ratio for responsive daysailing
Borge Bringsvaerd Bb116.18 mSame hull familyNear-identical lengthA Norwegian-built classic with an active class association that has raced continuously since the 1960s
Bavaria Yachts 6066.50 mSame hull family0.4 m longerA lightweight 6.5-meter fractional sloop with a high sail-area-to-displacement ratio for spirited coastal sailing

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

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