The feeling of sailing back again In any circumstance
Sailing on Class 4 is above all , to get the spirit of cruising back again. Pleasure to go from bay to bay faster than wind with light conditions (7kts speed with 5kts real wind) or make long passages, in safety with amazing performances (300 miles / day) … without efforts.
Own a Class 4 that really match you style, chose all options in details : interior design, rigging, steering, engines,… O Yachts is master in semi custom yachts, from best technical practice composite building, on female molds. Depending your directions and options, Class 4 can target podium in racing, as well as offering easy sailing for cruisers.
Clic on below link to configure your Class 4. You will realize we are also competitive with pricing.
Spacious living area
Saloon : always custom depending your preferences. We raise about 8inchs sofa area to offer perfect sea view when seated.
Chart table : large and spacious to enjoy planing navigations.
Kitchen : really made for those who love cooking with large cabinets, 2 deep bin, … and large opened windows to communicate with cockpit.
Cockpit : you really take advantage of a large, deep cockpit to setup your way. You can easily have 10 people seating at table if you want … you will still have place to move.
Cockpit area
New cockpit deeper than number 1 Class 4. You offer XXL space for guests and family. Feel free to design it your way : seating, benchs, table … Below is an example with classic cockpit and table for 8 guests.
http://www.o-yachts.com/wp-content/uploads/2020/11/Class_4_Exterior_aft_cockpit.jpg
Cockpit with steering wheel
Sail plan
This is the engine of Class 4.
3 options to chose from.
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Cruising : 57.5ft aluminum
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Performance : 59ft Carbon
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Race : 63.6ft Carbon
On forward beam we propose a self tacking jib lightly in the back. With light wind, you will prefer to use the Drifter (large genoa) that is tacked inside shrouds. This is an amazing sail to go upwind. Gennaker and Code0 are setup at the very end of this carbon bow-pole.
Engine
3 options :
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100% Diesel : 2 Yanmar 30hp on saildrive.
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Smart Hybrid : 1 Yanmar 30hp on saildrive + 1 electric engine (10 or 15kW).
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100% Electric: 2 electric engine 10 to 15kW. We recommend to install a Diesel 48V generator for safety.
Below is the solution wiht Yanmar 30hp engine.
Max speed 10kts, cruising on one engine 7kts.
Electric solutions
Two Class 4 sister ships are configured with electric Ocean Volt engines 10kW. Results are 6kts with 6kW in perfect sea conditions. That is achieved using only one engine. With bad sea you will double consuming and you will use both engines.
OceanVolt with special ServoProp solution optimize project for regeneration. The self pitch propeller is also 10 to 15% more efficient when motoring
For those looking more advanced system we also propose retractable pod with RIM engines that rotates 360°. Solution from BlueNav.
Quality composit
With 7.2T ligh displacement, Class 4 is one of the lightest sailing catamaran with CE. Weight is the Graal to offer a real sailing machine, ready to offer pleasure in light wind or gales.
At O Yachts, quality is not an option. As standard we offer Carbon structure :
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Front beam
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Bow pole
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Mast pilar
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Mast beam
We also add Kevlar shield (center to peak / 8inch over water line.
UNIQUE !
Forward beam / Bow Pole Carbon 100%
Erik LEROUGE is one of the very few to ask for complete carbon beam connection between hulls and link to platform on center. Forward beam is not just a bolted 7 inchs tube as most catamaran, you have 28 Layers of carbon linking 4 hull side. Then an other 28 layers of carbon from bow pole to platform on trampoline center. This are dozen of hours for hand job.
Complete hand lamination on infused panels
All panels non structural become structural with this method (sofa, stairs, floors, kitchen, cabinets… We first build panel on infusion table then we hand laminate and fairing/sanding all parts to make your Class 4 solid as a rock.
Forward beam / Bow pole 100% Carbon
Bare hull delivery
You can finalize yourself a Class 4 to many steps of finish.
Specifications
Fiber/Resine |
Carbon + Glass + Kevlar. / Vinylester + Epoxy |
Length |
46ft |
Largeur |
25ft |
Displacement light/max |
7,2T / 9,4T |
Draft |
43 inchs |
Saling area upwind |
105 à 126m2 |
Mast |
57 to 64 ft |
Main |
68 to 81m2 |
Jib |
37 to 44m2 |
Drifter (genoa) |
56 to 73m2 |
Gennaker |
115 to 135m2 |
Engines |
2 x 30hp Diesel / 2 x 10kW Electric |
Gasoil |
400l |
Water |
300l |
Warranty |
Structure 5 years |
Designer |
Denn Clifford |
Naval Architect |
Erik LEROUGE |