Review of Legende 1 Ton

Basic specs.

The Legende 1 Ton is a large sailboat designed by the American maritime architect Douglas Blair Peterson in the early eighties. The Legende 1 Ton is built by the French yard Jeanneau.

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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 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 Legende 1 Ton is 2.16, indicating that this boat would not be accepted to participate in ocean races.

Theoretical Maximum Hull Speed

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 7.6 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 Legende 1 Ton is about 257 kg/cm, alternatively 1442 lbs/inch.
Meaning: if you load 257 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1442 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 Legende 1 Ton is 19.9.

Comparing this ratio with similar sailboats show that it is more comfortable than 10% 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 Legende 1 Ton is 3.12.

Compared with other similar sailboats it is more spacy than 69% of all other designs. It seems that the designer has chosen a slightly more spacy hull design.

D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Legende 1 Ton is 180 which categorizes this boat among 'light racers'.

79% 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 Legende 1 Ton with ISO 8666 reference sail is 22.1, with a 135% genua the SA/D is 25.4.

The SA/D ratio indicates that it is faster than 93% 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	39.9 m	(131.0 feet)	12 mm	(1/2 inch)
Jib/genoa halyard	39.9 m	(131.0 feet)	12 mm	(1/2 inch)
Spinnaker halyard	39.9 m	(131.0 feet)	12 mm	(1/2 inch)
Jib sheet	12.2 m	(40.2 feet)	14 mm	(0.55 inch)
Genoa sheet	12.2 m	(40.2 feet)	14 mm	(0.55 inch)
Mainsheet	30.6 m	(100.5 feet)	14 mm	(0.55 inch)
Spinnaker sheet	27.0 m	(88.4 feet)	14 mm	(0.55 inch)
Cunningham	5.4 m	(17.8 feet)	12 mm	(1/2 inch)
Kickingstrap	10.9 m	(35.6 feet)	12 mm	(1/2 inch)
Clew-outhaul	10.9 m	(35.6 feet)	12 mm	(1/2 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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References

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