logo ovni 650

The aventure takes
on a new dimension.

21 metres. 100% aluminium. The largest lifting-keel yacht in the range, with a deck saloon and twin engines.  
Presentation

A semi-custom sailing yacht, designed for bluewater cruising

The OVNI 650 is the flagship of the range: a 21-metre LOA sailing yacht, designed by Mortain & Mavrikios in collaboration with CBA, and built at the Alubat shipyard in Les Sables-d’Olonne.

This model reflects our approach to yacht building. At the request of design offices or in response to tenders, we work on distinctive projects that remain true to the spirit of the range, without becoming a fully bespoke one-off designed for a single owner. Owners with a specific sailing programme can therefore benefit from solutions already proven on our other models.

From hull design to the choice of interior arrangements, every stage is developed in collaboration with the architect and our teams. The yacht is currently under construction, so some of the information below will be added and updated as the project progresses.

Technical Specifications of the ovni 650

Modern hull, flat bottom, twin rudders and a 1 000 kg lifting keel: this large sailing yacht combines the freedom of a lifting keel with the spaciousness of a yacht designed for long-distance cruising. With the keel raised, draught is reduced to 1,05 m; lowered, it extends to 3,90 m, providing better windward performance.

Overall length :

21 m

Maximum beam :

5,90 m

Draught :

Keel down : 3,90 m Keel up : 1,05 m

Upwind sail area :

225 m²

Lightship displacement :

33 000 kg

Why the OVNI 650?

Anchorages off-limits to larger boats

On a yacht of this size, a fixed keel usually means staying clear of shallow waters. The OVNI 650 changes that: its lifting keel gives you the freedom to choose your anchorage rather than being limited by it.

A draught reduced to 1.05 m

With the keel raised, the yacht can access estuaries, sheltered coves and lagoons that a fixed-keel yacht of the same length could not reach. It can also safely take the ground on suitable seabeds, for the duration of a tide.

Stability designed for ocean passages

20 mm plate flat bottom, semi-heavy construction and twin rudders combine to provide safe, balanced handling, even as the miles build up offshore.

A programme tailored to your plans

Interior layout, equipment, autonomy and propulsion : every option is defined according to the intended sailing programme, from coastal cruising along the European coast to a high-latitude circumnavigation.

Why choose Alubat ?

People, expertise, craftsmanship and fifty years of history behind every yacht.

  • Fifty years of expertise: more than 1,800 yachts built in Les Sables-d’Olonne, now sailing the world’s seas.
  • Long-term support: spare parts, after-sales service, refits and renovations, all provided by our teams.
  • A value that stands the test of time: when properly maintained, an OVNI remains sought after and retains strong resale value year after year.
Our offerings

The OVNI range

From the OVNI 370 to the OVNI 650, all our lifting-keel yachts share the same DNA, with each model designed for a specific sailing programme. For a fast, ocean-going fixed-keel yacht, also discover the CIGALE 15 QR.

MORTAIN/MAVRIKIOS & CBA

The largest lifting-keel yacht with a deck saloon and twin engines.

MORTAIN/MAVRIKIOS & CBA

The lifting-keel yacht for couples or solo sailing.

MORTAIN/MAVRIKIOS & CBA

The bluewater lifting-keel yacht, designed for life on board.

MORTAIN/MAVRIKIOS & CBA

The 16-metre lifting-keel yacht with an integrated deck saloon.

Designers
Mortain/Mavrikios and CBA
Mortain/Mavrikios and CBA
Mortain/Mavrikios and CBA
Mortain/Mavrikios and CBA
Overall length
20,9 m
11,95 m
12,95 m
15,95 m
Hull length
19,80 m
11,40 m
12,30 m
14,90 m
Waterline length
18,60 m
10,80 m
11,60 m
13,98 m
Maximum beam
5,90 m
3,99 m
4,36 m
4,80 m
Draft – centreboard down
4 m
3,08 m
3,45 m
3,10 m
Draft – centreboard up
1 m
0,92 m
1 m
1 m
Air draft
28 m
17 m
18,50 m
21,80 m
Light displacement
33 000 kg
9 800 kg
11 900 kg
19 000 kg
Loaded displacement
38 000 kg
12 770 kg
16 210 kg
23 500 kg
Ballast weight
11 000 kg
3 000 kg
3 400 kg
5 400 kg
Centreboard weight
900 kg
260 kg
320 kg
480 kg
Upwind sail area
230 m²
—
—
—
Mainsail
117 m²
—
—
—
Furling Solent
113 m²
31,5 m²
41 m²
65 m²
Furling staysail (option)
50 m²
17 m²
—
31 m²
Code 0 (option)
190 m²
72 m²
81 m²
105 m²
Code D (option)
220 m²
85 m²
102 m²
144 m²
Asymmetric spinnaker
260 m²
113 m²
135 m²
190 m²
Engines
2 × 110 HP shaft drive
—
—
—
CE certification
A category
—
—
A category
Fresh water tank
—
330 l
450 l
—
Fuel tank
—
450 l
580 l
—
Refrigerated volume
—
85 l (+ 70 l option)
180 l
—
Upwind sail area (square top mainsail)
—
67,5 m² (73,5 m²)
84 m² (91 m²)
121 m² (130 m²)
Mainsail (square top mainsail)
—
36 m² (42 m²)
43 m² (50 m²)
56 m² (65 m²)
Engine
—
50 HP shaft drive
50 HP shaft drive
2 x 50 HP shaft drive
CE Certification
—
A category
A category
—
Furling staysail
—
—
21 m²
—
Fresh water tanks
—
—
—
2×300 l
Fuel tanks
—
—
—
2×500 l
Still have a question?

A more specific question, something you’d like to clarify? Get in touch and we’ll be happy to help.

Navigation en équipe avec architecte voilier OVNI

Take the helm

Explore the OVNI 650 plans, then tell us about your project: our team will support you from defining your sailing programme through to launch.