Review of Hanse 371

Basic specs.

The Hanse 371 is a sailboat designed by the German maritime architect bureau judel / vrolijk & co - engineering GmbH in the late nineties. The Hanse 371 is built by the German yard YZG.

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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.

Interior

The boat is equipped with 5-7 berths, a galley and toilet facility.

Keel

Fin keel

The Hanse 371 is equipped with a fin keel. A boat with a fin keel is more manoeuvrable but has less directional stability than a similar boat with a full keel.

The boat can only enter major marinas as the draft is about 1.98 - 2.08 meter (6.50 - 6.80 ft) dependent on the load. See immersion rate below.

Engine

The Hanse 371 has been equipped with different engine alternatives.

Alternative 1:

Hanse 371 may be equipped with an inboard Volvo Penta MD2030 diesel engine at 30 hp (22 kW).

Alternative 2:

The boat may be equipped with an engine at 29 hp (21 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.

Stability and Safety

What is Capsize Screening Formula (CSF)?

The capsize screening value for Hanse 371 is 1.97, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Hanse 371 is about 267 kg/cm, alternatively 1498 lbs/inch.
Meaning: if you load 267 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1498 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 Hanse 371 is 3.17.

Compared with other similar sailboats it is more spacy than 58% 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 Hanse 371 is 38%.

This ballast ratio shows a righting moment that is higher than 42% of all similar sailboat designs. A righting moment (ability to resist heeling) just below average.

Maintenance

Rig

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
Jib sheet	11.2 m	(36.9 feet)	14 mm	(0.55 inch)
Genoa sheet	11.2 m	(36.9 feet)	14 mm	(0.55 inch)
Mainsheet	28.1 m	(92.3 feet)	14 mm	(0.55 inch)
Spinnaker sheet	24.8 m	(81.2 feet)	14 mm	(0.55 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

We are always looking for new photos. If you can contribute with photos for Hanse 371 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.