YachtCodex
Alubat

CIGALE 15 QR

In production
Alubat CIGALE 15 QR — photo 1

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Cigale15QR-rouge-1 — Alubat

Design

Designer
Finot-Conq

Summary

51.5 ftLOA68.9 ftAIR DRAFT10.8 ftDRAFT15.4 ftBEAM
Sailing MonohullSailCE A
Length overall
51.5 ft
Beam
15.4 ft
Draft
5.3–10.8 ft
Air draft
68.9 ft
Displacement
27,558 lb
Sail area (upwind)
1,507 ft²
Cabins
2–3

* A standard reference image, not the actual boat — shown to help visualise this model's published dimensions.

Best Suited For

Tags are derived from certified class, length, sail area, accommodation and tankage using the criteria described on the Sources page; an editor may add or remove one.

Sailing Ratios

Classic yacht-design ratios worked out from the builder's published figures, each shown against the bands designers read it by.

Sail area / displacement

How much sail the boat carries for its weight — its power in light air.

ModestCruiserPerformanceRacing162024CIGALE 15 QR: 26.4
  • 26.4· Racing
How it is worked out

sail area (ft²) ÷ (displacement as ft³ of seawater)^⅔

published upwind sail area

Displacement / length

How heavy the boat is for its waterline length. Lower is lighter and quicker; higher is steadier and roomier.

UltralightLightModerateHeavyVery heavy100180270350
  • not published: waterline length
How it is worked out

displacement (long tons) ÷ (0.01 × waterline length in ft)³

Ballast ratio

The share of the weight carried in the keel — a rough guide to stiffness, though how deep that weight sits matters as much.

LowModerateHigh3040CIGALE 15 QR: 26
  • 26· Low
How it is worked out

ballast ÷ displacement × 100

Comfort ratio

Ted Brewer's measure of how gently a boat moves in a seaway. Higher means a slower, easier motion.

LightCoastalModerate offshoreHeavy offshoreVery heavy20304050
  • not published: waterline length
How it is worked out

displacement (lb) ÷ (0.65 × (0.7 × LWL + 0.3 × LOA) × beam^1.333), lengths in ft

Capsize screening

A guide from the inquiry after the 1979 Fastnet race: below 2 was taken as suited to ocean passages. It ignores hull shape and where the ballast sits.

Below 22 and above2CIGALE 15 QR: 2.04
  • 2.04· 2 and above
How it is worked out

beam (ft) ÷ (displacement as ft³ of seawater)^⅓

Hull speed

Roughly the speed a displacement hull reaches before it has to climb its own bow wave.

  • not published: waterline length
How it is worked out

1.34 × √(waterline length in ft), in knots

Most builders publish a light displacement. The ratios were defined on a loaded boat, so every boat here reads a little lighter than a surveyor's figure would — all alike, which keeps them comparable.

Tanks

What the builder publishes about how fast, how strong and how much the boat carries.

Fuel and water on one scale: a tank twice the height holds twice as much.

  • Fuel159 gal
    Water106 gal

Design Category

Certified CE design category A (Ocean): the wind and waves the EU Recreational Craft Directive says this boat is designed to take.

  1. D

    Sheltered waters

    Wind
    up to Beaufort 4
    Waves
    up to 0.3 m
  2. C

    Inshore

    Wind
    up to Beaufort 6
    Waves
    up to 2 m
  3. B

    Offshore

    Wind
    up to Beaufort 8
    Waves
    up to 4 m
  4. AThis boat

    Ocean

    Wind
    above Beaufort 8
    Waves
    above 4 m

Design limits set by the EU Recreational Craft Directive (2013/53/EU), in significant wave height. A category covers the conditions of those below it. It is the limit the boat was designed to, not a promise that it is safe in any conditions within it — that judgement stays with the skipper.

Dimensions

LOA
51.5 ft (15.7 m)
Hull length
47.6 ft (14.5 m)
LWL
—
Beam
15.4 ft (4.7 m)
Draft (min)
5.3 ft (1.62 m)
Draft (max)
10.8 ft (3.3 m)
Air draft
68.9 ft (21 m)
Displacement
27,558 lb (12,500 kg)
Ballast
7,055 lb (3,200 kg)
Cabins
2–3
Heads
—
Berths
—

Sail Plan

Main sail
775 ft² (72 m²)
Jib
—
Genoa
732 ft² (68 m²)
Sail area
1,507 ft² (140 m²)
Downwind sail area
—
Rig type
—

Engine and Tanks

Engine
50 hp
Engine count
1
Engine manufacturer
—
Propulsion type
shaft drive
Fuel capacity
159 gal (600 L)
Fresh water capacity
106 gal (400 L)
Black water capacity
—

Construction

Mast material
—
Hull material
Aluminium
Deck material
—
Keel type
—
Rudder type
—
Steering wheels
—

Builder's Own Figures

Genoa
68 m2
Draft
centreboard up 1,62 m / down 3,30 m
CE
A (under process)
Upwind sail area
140 m2
Mainsail
72 m2
Engine
50CV shaft drive
Loaded displacement
16 500 kg
Displacement basis
light displacement (page figure)

Figures read fromalubat.com/la-gamme/cigale-15-qr/· Specificationsread 9/13/2026

Layouts & Drawings

1 drawing from the builder's page: general arrangement, sail plan, profile.

About Alubat

Semi-custom

French builder of all-aluminium lifting-keel blue-water yachts — the OVNI range (370, 430, 490, 650) and the CIGALE 15 QR — founded in 1973 at Les Sables-d'Olonne.

The Alubat yard was founded in 1973 at Les Sables-d'Olonne in the Vendée. In 1978 it launched the OVNI range -- aluminium centreboarders with hard chines -- which laid down the concept that still defines the marque; from 25 to 58 feet, 28 models have been developed in more than fifty years with naval architects Philippe Briand, Marc Lombard, Alain Mortain, Yiannis Mavrikios and the CBA studio of Alain Bechetoille, Jean-Pierre Brouns and Nina Karlseder, and the first OVNI 28 reached Switzerland in 1980. A new page opened in 1994 with the Cigale range, drawn by Jean-Marie Finot and Pascal Conq and later Marc Lombard, aluminium keelboats of the ultra-light-displacement type built for lightness and performance. In 2023 Luc Jurien, at the head of the yard since 2021, took it over with his team; the OVNI 490 joined the new-generation OVNIs in 2025 with a wheelhouse that changes the way of sailing, and for 2027 the Cigale line is renewed with the Finot-Conq Cigale 15 QR with lifting keel.

Visit brand page

The Alubat Range

Every model Alubat publishes, by length — where this one sits in the range.

  1. OVNI 65068.9 ft
  2. OVNI 49052.3 ft
  3. CIGALE 15 QR· this model51.5 ft
  4. OVNI 43042.5 ft
  5. OVNI 37039.2 ft

By the Same Designers

Boats this boat's designers also drew, for other builders too. Credits are grouped only where the names clearly agree, however each builder spelled them; an unclear one is left out.

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