Review of Hanse 470e

Basic specs.

The Hanse 470e is a large sailboat designed by the German maritime architect bureau judel / vrolijk & co - engineering GmbH.

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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 6-9 berths and 440.0 liter fresh water capacity.

Rig

The Hanse 470e is 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 gennaker or a spinnaker for optimal speed.

Keel

The Hanse 470e has been built with different keel alternatives.

Unknown keel type

The boat can only enter major marinas as the draft is about 2.30 - 2.40 meter (7.55 - 7.85 ft) dependent on the load. See immersion rate below.

Unknown keel type

Hanse 470e can only enter major marinas as the draft is about 1.95 - 2.05 meter (6.40 - 6.70 ft) dependent on the load. See immersion rate below.

Unknown keel type

The boat can only enter major marinas as the draft is about 2.60 - 2.70 meter (8.53 - 8.83 ft) dependent on the load. See immersion rate below.

Engine

The boat may be equipped with an inboard Yanmar 4JH4 diesel engine at 54 hp (40 kW). Calculated max speed is about 6.8 knots

The transmission is a saildrive.

The fuel tank, which is made of stainless steel, has a capacity of 250.0 liters (66 US gallons, 54 imperial gallons).

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 470e is 1.96, indicating that this boat could - if evaluated by this formula alone - 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 8.6 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 Hanse 470e is about 377 kg/cm, alternatively 2113 lbs/inch.
Meaning: if you load 377 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 2113 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 Hanse 470e is 26.9.

Comparing this ratio with similar sailboats show that it is more comfortable than 24% 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 Hanse 470e is 3.18.

Compared with other similar sailboats it is more spacy than 79% of all other designs. It seems that the designer has chosen a significantly more spacy hull design.

D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Hanse 470e is 169 which categorizes this boat among 'light racers'.

76% 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 Hanse 470e with ISO 8666 reference sail is 21.1, with a 135% genua the SA/D is 24.7.

The SA/D ratio indicates that it is faster than 85% of all similar sailboat designs in light wind.

Maintenance

Bottom Paint

When buying anti-fouling bottom paint, it's nice to know how much to buy. The surface of the wet bottom is about 64m² (688 ft²).
Based on this, your favourite maritime shop can tell you the quantity you need.

Note: If you use a paint roller you will need more paint than if you use a paintbrush.

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	51.3 m	(168.3 feet)	14 mm	(0.55 inch)
Jib/genoa halyard	51.3 m	(168.3 feet)	14 mm	(0.55 inch)
Spinnaker halyard	51.3 m	(168.3 feet)	14 mm	(0.55 inch)
Jib sheet	14.2 m	(46.6 feet)	16 mm	(5/8 inch)
Genoa sheet	14.2 m	(46.6 feet)	16 mm	(5/8 inch)
Mainsheet	35.5 m	(116.5 feet)	16 mm	(5/8 inch)
Spinnaker sheet	31.2 m	(102.5 feet)	16 mm	(5/8 inch)
Cunningham	5.7 m	(18.7 feet)	14 mm	(0.55 inch)
Kickingstrap	11.4 m	(37.4 feet)	14 mm	(0.55 inch)
Clew-outhaul	11.4 m	(37.4 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.

Do you have changes/improvements you would like to share? Upload a photo and describe what you have done.

Finally

We are always looking for new photos. If you can contribute with photos for Hanse 470e 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.