An inspired design (based on the ideas of French racer Laurent Bourgnon ), a demanding achievement in the Latvian O’YACHT shipyard (author of the excellent LEROUGE O’Yacht Class 4 plan) and a preparation-adjustment by a specialist in the marine hydraulics (slavery of maneuvers). The philosophy of this large catamaran is that of a pure multihull to preserve easy performance, an oceanic stride and a smooth and safe passage in rough or cross seas. The weight/power ratio is in its favor and allows it a welcome payload when cruising. The performance is up to the design, but the maneuver can be carried out with a reduced crew thanks to perfectly designed and controlled hydraulic assistance via large Harken Performa winches (hydraulic), 2 hydraulic sheet stokers for the mainsail, 3 hydraulic furlers for the headsails. The carbon mast is rotatable, the rigging textile, and the mainsail surface is adjusted by means of a hydraulically furling boom. The power and availability of hydraulics is beyond comparison to what could be provided by electrical systems. This servo system has already been tested with total success on Outremer 40-43/TS42/0RC50…).
The interior volumes and the light are spectacular, as is the cocpit space! The foredeck is accessible directly from the saloon!

Prix : 1,300,000€
Size: 19cm x 9,05cm x 25cm (LxWxH)
Weight: 16000 kg



62 ft Catamaran built in sandwich E-Glass vinylester, 30 % carbon reinforcement.

Year of build 2019

O YACHT CLASS 6, engineered and assemble by Vyacht, Maxence Valdelievre

Architech : Doug Shikler

CE Cat A certification

FLAG : French (VAT paid)

LWL : 62 ft, 19m

Beam : 30 ft, 9,05m

Draft min : 5 ft, 1,5m (retractable dagger board and rudder to achieve 1m)

Draft max : 8,5 ft

Displacement Light : 14 Tonnes

Max Displacement : 17,5 Tonnes

Water : 600 Litres ( single tank structural )

Diesel : 400 Litres ( Single tank plastic )

Mast height above water : 82 ft, 25 m

Carbon Mast, Carbon dargger board, Carbon rudder, Carbon bowsprit (retractable 2m), Carbon furling boom

Sails : (2 years old) all DELTA

Proradial grey Dacron on triradial cut : Main sail 95mÇand trinquette 47mÇ

Light Genoa in DCX 95mÇ

Code 0, heavy carbon, 145 mÇ

Code D, in Stormlite, 245 mÇ

Engine :

Hybrid Diesel Electric,

1 SOLE Diesel, 82 Hp , 2000H. Shaft line with Gory 3 blades folding prop 24 inch

Day tank 50L automatic.

1 Electric 11 Kw for manoeuvres

Deck hardware :

Full hydraulic manoeuvres on screen with load sensors.

2 hydraulic winches Harken 70,2 Performa

2 hydraulic carbon cylinder for main sheet

3 hydraulic furler for Trinquette, genoa and fwdsails on bowsprit.

Lewmar Flush deck panel.

Retractable Bowsprit 2m

750 mm hight guardrail with dynema line, Aluminium black anodised stanchions Goiot

Windlass 2000 watts Lewmar Concept 3 Aluminium

70 m of 12mm chain

Delta 40 Kg Anchor

Emergency Anchor Fortress Aluminum

Spade 32 Kg Anchor with 30 m of 12mm chain, auxilary

Emergency hatchgoiot 5 handles position well high fwd

 Mast :

Carbon rotating mast

Furling carbon boom

Carbon spreaders

Dynemaa shrouds on lashing and carbon chain plates

Hydraulic permanent mast jack to tension the rig and sense the loads. Boat structure is at rest when mooring.

Steering :

Carbon steering wheel

External carbon rudders retractable

Dynema câble and carbon push bar

Hydraulic autopilot lecomble and Schmitt

Tender :

V lift in Carbon (50Kg) for light Tender ( 250 Kg Max )

Highfield 3,6 with 15 HP

Water maker :

60l/H Unitam 48 volts

Electronic :

Raymarine I70 data at Chart table

Raymarine P70 at Chart table

Raymarine VHF at Chart table

Radar Raymarine

AIS Raymarine

Axiom 7 touch screen at steering wheel.


Single engine 12 volt lithium battery 20 Amps

Housse battery 24 volts, 200 amps lithium LFPO

Support battery, 48 volts, 100 amps LFPO

Most big power câble are Aluminium

Wirring using deported power box driven by chart table panel.

48 volts outside power for propulsion, water maker and hydraulic power pack

7X300 watts Rigide solar panel.

4 dedicated to 48 Volts bank

3 dedicated to 24 Volts bank

48 Volt alternator on Engine

24 Volts Altenrator on Engine

12 Volts Alternator on Engine

3 KW converter 24 volts

3 KW converter 48 volts


One Cat is very ligtly furnished and modifications can easily be undertake.

-3 Double Cabines 160×200 and 1 Single 80×2000 + Workshop in Engine Room.

-3 Toilettes with showers ( twofitted with gravity holding tank 100L and 50L)

-7 Kg whashing machine

Outside tableelectric motion transformable in queen size bed.

Inside table electric motion transformable in bar.


3 Gaz burners

Gaz Oven

Freezer 36 L , 220 volts

Fridge table top 120 litres , 220 volts

Fridge SST door 120 litres, 24 volts

Hot water 50L on engine and 220 volt.

2 Outsides shower with hot water and 2 swim ladder

Huge AFT Storage. Huge Sail locker….




Modèle / Version O YACHT CLASS 4
Chantier / Boatyard O YACHT
Architecte / Architect DOUG SHIKLER
Année de construction / Launching year 2019
Pavillon / Flag Français
TVA Payée / Paid VAT oui/yes
Longueur / LOA 19 m
Largeur / Beam 9,05 m
Tirant d'eau / Draft 1/2,60 m
Poids / Weight 16000 kg
Surface au près / Winward sail surface 142
Système anti-dérive / Keel type dérives carbonne
Motorisation / Engines SOLE DIESEL 82HP en ligne d'arbre dans une coque plus un moteur électrique 11Kw pour les manoeuvres