BoatsOpen 5.70

Open 5.70

Fractional Sloop · Lifting Keel · First built 2002

A high-performance fractional sloop from Groupe Finot featuring a lifting keel and an exceptionally high power-to-weight ratio

Designed by Group Finot & Jean Marie Finot (Groupe Finot), built by Phileas Boats.

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

Is it for you?

Character

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

TrailerableBeam 2.54 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 450 kg of hull, so roughly 1,050 kg on a trailer: check that against your own towing rating.Ramp-launchableAbout 450 kg of hull, with a keel that raises or a draught shallow enough to float off a trailer — she can go back on the trailer at the ramp, not only into the water.Shoal draughtDraws 0.20 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 5 — a quick, lively motion that feels every wave.

Comfort ratio 5
CoastalBluewater

At 3.34 she sits above the 2.0 line — beamy for her weight, and happiest coastal.

Capsize screening 3.34
LightHeavy

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

Displacement / length 67
EasygoingPowered-up

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

Sail area / displacement 33.6
TenderStiff

40% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 40%

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

  • Lighter than ~79% of boats her size on file
  • Draws more than ~96% of boats her size on file
  • Beamier than ~91% of boats her size on file

Compared with 447 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
40.0%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
33.6
Displacement / length
67.2
Comfort ratio
4.8
Capsize screening
3.34
Hull speed
5.8 kn
Pounds / inch immersion
558
Hull
Hull type
Lifting Keel
Construction
Fiberglass
Ballast type
Lead
Production
Years built
First built 2002
Designer
Group Finot, Jean Marie Finot (Groupe Finot)
Builder
Phileas Boats, Open Sailing 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.

RS 216.40 mSame hull family0.7 m longer
Training Sea Cadet Instructors | RS21 Keelboat Sailing – Welsh Harp1:37from City Sailing
Microtonner 195.50 mSame hull family0.2 m shorterA high-performance fractional sloop designed by Nestor Volker to the International Micro Class rule for competitive racing
I Met the Man Who Puts Sailboats Inside the São Francisco River | #SAL #4256:23from Hashtag Sal
RS Quest4.29 mSame hull family1.4 m shorterA 140kg fractional sloop with a centerboard trunk designed for stable, versatile training and family sailing
Sea Cadet National Sailing and Windsurfing Regatta 20250:48from City Sailing
Drascombe Dabber4.72 mSame hull family1.0 m shorterA John Watkinson-designed sprit-rigged daysailer with a centreboard, built since 1970 for shallow-water versatility
Getting Underway - Portland to Boston23:16from The Mariner
Dufour Yachts T66.15 mSame hull family0.4 m longerA lightweight 800kg fractional sloop with a high sail-area-to-displacement ratio for spirited performance in light air
Who I am and why the sea is part of my life0:56from NAUTICPIOLI
Marshall Marine Corporation Sanderling5.54 mSame hull family0.2 m shorterA gaff-rigged catboat based on a 1941 design, featuring a shallow-draft keel-centerboard hull for versatile day sailing
The History of Beneteau Boats11:37from Practical Sailor

The family

Boats like this

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

Esse 750An Umberto Felci-designed fractional sloop with a high SA/displacement ratio built for high-performance day sailingVarious 470An Olympic-class two-person trapeze dinghy sailed in over 60 countries since its 1963 debut

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 Open 5.70

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