Review of Costantini 30

Basic specs.

The Costantini 30 is a sailboat designed by the French maritime architect Gilles Costantini in the early seventies. Only a few boats have been produced. The Costantini 30 is built by the French yard Chantier Costantini.

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Rig

The Costantini 30 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 Costantini 30 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 boat can enter most marinas as the draft is just about 1.72 - 1.82 meter (5.64 - 5.94 ft) dependent on the load.

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.

Sorry, we have no sailing characteristics available for this boat.

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.

Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for Costantini 30 is 50%.

This ballast ratio shows a righting moment that is higher than 90% of all similar sailboat designs. A righting moment (ability to resist heeling) significantly above average.

Over- / underrigged

The Costantini 30 has more rig than 46% of all similar sailboats, which indicates that the boat is slightly underrigged.

Maintenance

Rig

Dimensions of sail for masthead 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	24.3 m	(79.7 feet)	10 mm	(3/8 inch)
Jib/genoa halyard	24.3 m	(79.7 feet)	10 mm	(3/8 inch)
Spinnaker halyard	24.3 m	(79.7 feet)	10 mm	(3/8 inch)
Jib sheet	9.2 m	(30.3 feet)	12 mm	(1/2 inch)
Genoa sheet	9.2 m	(30.3 feet)	12 mm	(1/2 inch)
Mainsheet	23.1 m	(75.9 feet)	12 mm	(1/2 inch)
Spinnaker sheet	20.4 m	(66.8 feet)	12 mm	(1/2 inch)
Cunningham	2.8 m	(9.2 feet)	10 mm	(3/8 inch)
Kickingstrap	5.6 m	(18.4 feet)	10 mm	(3/8 inch)
Clew-outhaul	5.6 m	(18.4 feet)	10 mm	(3/8 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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References

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