Review of Océanis 40 CC

Basic specs.

The Océanis 40 CC aka Beneteau Oceanis 40 CC is a large sailboat designed by the French maritime architect bureau Groupe Finot. The Océanis 40 CC is built by the French yard Bénéteau.

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Hull

The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.

Interior

The interior is like few other boats made in cherry.
The boat is equipped with 3 cabins, a galley, 500.0 liter fresh water capacity and toilet facility.

Rig

The boat has more than one rig.

One option is a masthead rig. The advantage of a masthead rig is its simplicity and the fact that a given sail area - compared with a fractional rig - can be carried lower and thus with less heeling moment.

Keel

Fin keel

The Océanis 40 CC is equipped with a fin keel. A boat with a fin keel is more manoeuvrable but has less directional stability than a similar boat with a full keel.

Océanis 40 CC can enter most marinas as the draft is just about 1.70 - 1.80 meter (5.58 - 5.88 ft) dependent on the load. See immersion rate below.

Engine

The boat may be equipped with an inboard Volvo Penta engine at 50 hp (37 kW). Calculated max speed is about 7.4 knots

The fuel tank has a capacity of 200.0 liters (52 US gallons, 43 imperial gallons).

Sailing characteristics

This section covers widely used rules of thumb to describe the sailing characteristics. Please note that even though the calculations are correct, the interpretation of the results might not be valid for extreme boats.

Stability and Safety

What is Capsize Screening Formula (CSF)?

The capsize screening value for Océanis 40 CC is 1.95, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.

EU classification

Océanis 40 CC holds two CE certifications:

If less than 6 in on board the boat is by European Union certified as Class A. OCEAN:

Designed for extended voyages where conditions may exceed wind force 8 (Beaufort scale) and significant wave heights of 4 m and above but excluding abnormal conditions, and vessels largely self-sufficient.

If less than 8 in on board the boat is by European Union certified as Class B. OFFSHORE:

Designed for offshore voyages where conditions up to, and including, wind force 8 (Beaufort scale) and significant wave heights up to, and including, 4 m may be experienced.

Theoretical Maximum Hull Speed

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 8.1 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Océanis 40 CC is about 296 kg/cm, alternatively 1659 lbs/inch.
Meaning: if you load 296 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1659 lbs cargo on the boat it will sink 1 inch.

Sailing statistics

This section is statistical comparison with similar boats of the same category. The basis of the following statistical computations is our unique database with more than 26,000 different boat types and 350,000 data points.

Motion Comfort Ratio

What is Motion Comfort Ratio (MCR)?

The Motion Comfort Ratio for Océanis 40 CC is 25.3.

Comparing this ratio with similar sailboats show that it is more comfortable than 31% of all similar sailboat designs. This comfort value is just below average.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Océanis 40 CC is 3.03.

Compared with other similar sailboats it is more spacy than 76% of all other designs. It seems that the designer has chosen a significantly more spacy hull design.

D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Océanis 40 CC is 168 which categorizes this boat among 'light racers'.

82% of all similar sailboat designs are categorized as heavier. A light displacement requires less sailarea and has higher accellerations.

Maintenance

Bottom Paint

When buying anti-fouling bottom paint, it's nice to know how much to buy. The surface of the wet bottom is about 47m² (505 ft²).
Based on this, your favourite maritime shop can tell you the quantity you need.

Note: If you use a paint roller you will need more paint than if you use a paintbrush.

Rig

If you need to renew parts of your running rig and is not quite sure of the dimensions, you may find the estimates computed below useful.

**Guiding dimensions of running rig**
Masthead rig
Usage	Length		Diameter
Jib sheet	12.0 m	(39.3 feet)	14 mm	(0.55 inch)
Genoa sheet	12.0 m	(39.3 feet)	14 mm	(0.55 inch)
Mainsheet	30.0 m	(98.3 feet)	14 mm	(0.55 inch)
Spinnaker sheet	26.4 m	(86.5 feet)	14 mm	(0.55 inch)
Masthead rig
Usage	Length		Diameter
Mainsail halyard	33.2 m	(109.0 feet)	12 mm	(1/2 inch)
Jib/genoa halyard	33.2 m	(109.0 feet)	12 mm	(1/2 inch)
Spinnaker halyard	33.2 m	(109.0 feet)	12 mm	(1/2 inch)
Jib sheet	12.0 m	(39.3 feet)	14 mm	(0.55 inch)
Genoa sheet	12.0 m	(39.3 feet)	14 mm	(0.55 inch)
Mainsheet	30.0 m	(98.3 feet)	14 mm	(0.55 inch)
Spinnaker sheet	26.4 m	(86.5 feet)	14 mm	(0.55 inch)
Cunningham	4.7 m	(15.5 feet)	12 mm	(1/2 inch)
Kickingstrap	9.4 m	(31.0 feet)	12 mm	(1/2 inch)
Clew-outhaul	9.4 m	(31.0 feet)	12 mm	(1/2 inch)

Boat owner's ideas

This section is reserved boat owner's modifications, improvements, etc. Here you might find (or contribute with) inspiration for your boat.

Do you have changes/improvements you would like to share? Upload a photo and describe what you have done.

Finally

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References

[Ref 1]: ISO 8666 Small craft — Principal data.
[Ref 3]: ISO 12215-5 Small craft — Hull construction and scantlings.