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Review of Centurion 42


Basic specs.

sail specifications
The Centurion 42 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 42 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.


Rig

The Centurion 42 is equipped with 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 Centurion 42 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 2.35 - 2.45 meter (7.71 - 8.01 ft) dependent on the load. See immersion rate below.


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 42 is about 350 kg/cm, alternatively 1964 lbs/inch.
Meaning: if you load 350 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1964 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 42 is 3.19.

Slim Wide 66% 0 50 100
Compared with other similar sailboats it is more spacy than 66% 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 42 is 43%.

Low High 73% 0 50 100
This ballast ratio shows a righting moment that is higher than 73% of all similar sailboat designs. A righting moment (ability to resist heeling) just above average.


Over- / underrigged

Low High 24% 0 50 100
The Centurion 42 has more rig than 24% of all similar sailboats, which indicates that the boat is significantly underrigged.


Maintenance

Rig

Dimensions of sail for masthead rig.

mainsail specifications headsail specifications

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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
UsageLengthDiameter
Mainsail halyard 40.7 m(133.5 feet)12 mm(1/2 inch)
Jib/genoa halyard40.7 m(133.5 feet)12 mm(1/2 inch)
Spinnaker halyard40.7 m(133.5 feet)12 mm(1/2 inch)
Jib sheet 12.9 m(42.4 feet)14 mm(0.55 inch)
Genoa sheet12.9 m(42.4 feet)14 mm(0.55 inch)
Mainsheet 32.3 m(106.1 feet)14 mm(0.55 inch)
Spinnaker sheet28.4 m(93.3 feet)14 mm(0.55 inch)
Cunningham4.7 m(15.5 feet)12 mm(1/2 inch)
Kickingstrap9.4 m(31.0 feet)12 mm(1/2 inch)
Clew-outhaul9.4 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.

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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