Review of Hallberg-Rassy 42E

Basic specs.

The Hallberg-Rassy 42E or HR 42E aka HR 42E is a large sailboat designed by the Swedish maritime architect Christoph Rassy together with Olle Enderlein also from Sweden in the early eighties. A few hundred boats have been produced. The Hallberg-Rassy 42E is built by the Swedish yard Hallberg-Rassy Varvs AB.

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Hull

Both the hull and the deck is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.
The deck is a double deck which improves the indoor climate.

Interior

The interior is like many other boats made of mahogany.
The boat is equipped with 2 cabins, 7-9 berths, a galley and toilet facility.
The headroom is above average

Rig

The boat equipped with a ketch rig.

Engine

The boat is typically equipped with an inboard Volvo Penta MD21A diesel engine at 75.0 hp (55 kW).

The transmission is a shaft drive. A shaft drive will in the long run require less maintenence than other types of drive e.g. a sail drive.

The fuel tank which is made of stainless steel has a capacity of 395 liters (104 US gallons, 86 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.

Theoretical Maximum Hull Speed

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 7.9 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 Hallberg-Rassy 42E is about 265 kg/cm, alternatively 1489 lbs/inch.
Meaning: if you load 265 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1489 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 Hallberg-Rassy 42E is 3.42.

Compared with other similar sailboats it is slimmer than 62% of all other designs. It seems that the designer has chosen a slightly more speedy hull design.

RSP (Relative Speed Performance)

What is Relative Speed Performance?

The Relative Speed Performance for Hallberg-Rassy 42E is 14

The relative speed performance is 14 which means that a it is faster than 14% of all similar sailboat designs.

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	12.9 m	(42.4 feet)	14 mm	(0.55 inch)
Genoa sheet	12.9 m	(42.4 feet)	14 mm	(0.55 inch)
Mainsheet	32.3 m	(106.1 feet)	14 mm	(0.55 inch)
Spinnaker sheet	28.4 m	(93.3 feet)	14 mm	(0.55 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.