Review of Centurion 47

Basic specs.

The Centurion 47 is a large sailboat designed by the French maritime architect Edward George Dubois in the mid eighties. Less than 100 boats have been produced. The Centurion 47 is built by the French yard Wauquiez.

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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.

Keel

The Centurion 47 is equipped with a fin keel. The fin keel is the most common keel and provides splendid manoeuvrability. The downside is that it has less directional stability than a long keel.

The keel is made of lead. Compared with iron, lead has the advantage of being 44% heavier, which allows a smaller keel and hence less water resistance and higher speed.

The boat can only enter major marinas as the draft is about 2.64 - 2.74 meter (8.66 - 8.96 ft) dependent on the load. See immersion rate below.

Engine

The boat is typically equipped with a Perkins 4.154 diesel engine at 62.0 hp (46 kW).

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.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Centurion 47 is about 432 kg/cm, alternatively 2424 lbs/inch.
Meaning: if you load 432 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 2424 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.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Centurion 47 is 3.26.

Compared with other similar sailboats it is more spacy than 73% of all other designs. It seems that the designer has chosen a slightly more spacy hull design.

Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for Centurion 47 is 44%.

This ballast ratio shows a righting moment that is higher than 86% of all similar sailboat designs. A righting moment (ability to resist heeling) significantly above average.

Over- / underrigged

Maintenance

Rig

Dimensions of sail.

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	44.7 m	(146.7 feet)	14 mm	(0.55 inch)
Jib/genoa halyard	44.7 m	(146.7 feet)	14 mm	(0.55 inch)
Spinnaker halyard	44.7 m	(146.7 feet)	14 mm	(0.55 inch)
Jib sheet	14.5 m	(47.6 feet)	16 mm	(5/8 inch)
Genoa sheet	14.5 m	(47.6 feet)	16 mm	(5/8 inch)
Mainsheet	36.3 m	(119.1 feet)	16 mm	(5/8 inch)
Spinnaker sheet	31.9 m	(104.8 feet)	16 mm	(5/8 inch)
Cunningham	5.3 m	(17.5 feet)	14 mm	(0.55 inch)
Kickingstrap	10.7 m	(35.0 feet)	14 mm	(0.55 inch)
Clew-outhaul	10.7 m	(35.0 feet)	14 mm	(0.55 inch)

Boat owner's ideas

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

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Finally

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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.