BoatsST Francis 50

ST Francis 50

Catamaran, twin keels · Fractional Sloop · First built 2006

A 15.25-metre catamaran with a 1.25m draft and a powerful 27.29 sail-area-to-displacement ratio for rapid cruising

Designed by Angelo Lavranos.

LOA
Beam
Draft (max)
Displacement
Hull type
Catamaran Twin Keel

See her sail

The ST Francis 50, on the water

The fleet's own footage — the truest look at how she really moves.

Footage from RAN Sailing

Is it for you?

Character

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

LightHeavy

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

Displacement / length 118
EasygoingPowered-up

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

Sail area / displacement 27.3

What the fleet has seen

The ST Francis 50, as the fleet has seen it

Derived from the videos the fleet has analysed of this model. ▶ marks open the moment aboard.

The St FRANCIS 50 is a 15.2-meter fractional sloop catamaran designed by Angelo Lavranos and built by St. Francis Marine since 2006. It features a twin keel hull, an 8.0-meter beam, a 1.2-meter draft, and displaces 12,500 kg. The MK II variant includes two 57 hp saildrive motors. Its sail plan comprises an 88 m2 mainsail, a 56 m2 genoa, a 173 m2 asymmetrical spinnaker, a 104 m2 Code 0, and a 19 m2 staysail. Aboard RAN Sailing, Johan and Malin are custom-building a 50-foot sailboat, the RAN 50, using a four-layer fiberglass and epoxy laminate for the interior hull, applying two layers of 450-gram fiberglass cloth per length.3:31

The living fleet

Sailed by the fleet

Where the fleet has filmed this boat.

Seen once across one channel of the fleet.

Basemap © Wikimedia Commons · CC BY-SA 4.0

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
27.3
Displacement / length
117.9
Hull
Hull type
Catamaran Twin Keel
Construction
Fiberglass
Production
Years built
First built 2006
Designer
Angelo Lavranos
Builder
St. Francis Marine

Boats like this, on the water

More boats like her, on the water

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.

Discovery Yachts 50 Catamaran15.40 mSame hull family0.2 m longerA Bill Dixon-designed fractional sloop catamaran, later rebranded as the Bluewater 50, built for blue-water cruising
Outremer 5215.73 mSame hull family0.5 m longerA VPLP-designed performance catamaran featuring twin daggerboards and a high sail-area-to-displacement ratio for speed
Seawind 160015.74 mSame hull family0.5 m longerA Reichel-Pugh designed performance catamaran featuring twin daggerboards and a high sail area-to-displacement ratio
Excess 1315.30 mSame hull familyNear-identical lengthA high-performance 15-metre catamaran with a high sail-area-to-displacement ratio, designed for speed and modern comfort
Hh 4415.15 mSame hull familyNear-identical lengthA high-performance carbon catamaran by James Hakes featuring twin daggerboards and a powerful 28.73 SA/displacement ratio

The family

Boats like this

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

Keep asking

The fleet has more to say

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