Review of Oceanis 46.1

Basic specs.

The Oceanis 46.1 is a large sailboat designed by the maritime architect bureau Pascal Conq. The Oceanis 46.1 is built by the French yard Bénéteau.

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Interior

The boat is equipped with 3 cabins, 6-9 berths and toilet facility.

Rig

The boat equipped with a fractional rig. A fractional rig has smaller headsails which make tacking easier, which is an advantage for cruisers and racers, of course. The downside is that having the wind from behind often requires a genaker or a spinnaker for optimal speed.

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 Oceanis 46.1 is 2.07, indicating that this boat would not be accepted to participate in ocean races.

EU classification

Oceanis 46.1 holds three CE certifications:

If less than 10 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 11 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.

If less than 12 in on board the boat is by European Union certified as Class C. INSHORE:

Designed for voyages in coastal waters, large bays, estuaries, lakes and rivers where conditions up to, and including, wind force 6 (Beaufort scale) and significant wave heights up to, and including, 2 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 8.8 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 Oceanis 46.1 is about 399 kg/cm, alternatively 2235 lbs/inch.
Meaning: if you load 399 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 2235 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 Oceanis 46.1 is 22.7.

Comparing this ratio with similar sailboats show that it is more comfortable than 14% of all similar sailboat designs. This is a comfort value significantly below average.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Oceanis 46.1 is 3.03.

Compared with other similar sailboats it is more spacy than 86% 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 Oceanis 46.1 is 127 which categorizes this boat among 'ultra light racers'.

88% of all similar sailboat designs are categorized as heavier. A light displacement requires less sailarea and has higher accellerations.

SA/D (Sail Area Displacement ratio)

What is SA/D (Sail Area Displacement ratio)?

The SA/D for Oceanis 46.1 with ISO 8666 reference sail is 20.5, with a 135% genua the SA/D is 24.2.

The SA/D ratio indicates that it is faster than 86% of all similar sailboat designs in light wind.

Maintenance

Rig

Dimensions of sail for fractional rig.

Are your sails worn out? You might find your next sail here: Sails for Sale

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**
Usage	Length		Diameter
Mainsail halyard	42.7 m	(140.2 feet)	14 mm	(0.55 inch)
Jib/genoa halyard	42.7 m	(140.2 feet)	14 mm	(0.55 inch)
Spinnaker halyard	42.7 m	(140.2 feet)	14 mm	(0.55 inch)
Jib sheet	13.7 m	(44.8 feet)	16 mm	(5/8 inch)
Genoa sheet	13.7 m	(44.8 feet)	16 mm	(5/8 inch)
Mainsheet	34.1 m	(112.0 feet)	16 mm	(5/8 inch)
Spinnaker sheet	30.0 m	(98.5 feet)	16 mm	(5/8 inch)
Cunningham	5.6 m	(18.5 feet)	14 mm	(0.55 inch)
Kickingstrap	11.3 m	(36.9 feet)	14 mm	(0.55 inch)
Clew-outhaul	11.3 m	(36.9 feet)	14 mm	(0.55 inch)

Boat owner's ideas

This section shown boat owner's changes, improvements, etc. Here you might find inspiration for your boat.

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Finally

We are always looking for new photos. If you can contribute with photos for Oceanis 46.1 it would be a great help.

If you have any comments to the review, improvement suggestions, or the like, feel free to contact us. Criticism helps us to improve.

References

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