Review of Hallberg-Rassy 46

The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.

The boat is equipped with 8 berths and 920.0 liter fresh water capacity.

The Hallberg-Rassy 46 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.

Fin keel

The Hallberg-Rassy 46 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 keel is made of lead. Compared with iron, lead has the advantage of being 44% heavier, which allows a smaller keel and hence less water resistance and higher speed.

The boat can only enter major marinas as the draft is about 1.88 - 1.98 meter (6.17 - 6.47 ft) dependent on the load. See immersion rate below.

The Hallberg-Rassy 46 has been equipped with different engine alternatives.

Alternative 1:

Hallberg-Rassy 46 may be equipped with a Yamaha 4LH-TE engine at 110 hp (81 kW). The speed is 8.5 knots..

Alternative 2:

The boat may be equipped with an inboard Volvo Penta TMD 31 diesel engine at 95 hp (70 kW).

The fuel tank has a capacity of 660.0 liters (174 US gallons, 145 imperial gallons).

What is Capsize Screening Formula (CSF)?

The capsize screening value for Hallberg-Rassy 46 is 1.74, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Hallberg-Rassy 46 is about 430 kg/cm, alternatively 2412 lbs/inch.
Meaning: if you load 430 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 2412 lbs cargo on the boat it will sink 1 inch.

What is L/B (Length Beam Ratio)?

The l/b ratio for Hallberg-Rassy 46 is 3.40.

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.

What is a Ballast Ratio?

The ballast ratio for Hallberg-Rassy 46 is 41%.

This ballast ratio shows a righting moment that is higher than 76% of all similar sailboat designs. A righting moment (ability to resist heeling) significantly above average.

What is SA/D (Sail Area Displacement ratio)?

The SA/D for Hallberg-Rassy 46 with ISO 8666 reference sail is 15.1, with a 135% genua the SA/D is 18.0.

The SA/D ratio indicates that it is faster than 7% of all similar sailboat designs in light wind.
Don't panic! It is expected that motor sailers has a low SA/D value as this is the natural consequence of the design combining sailing and motor boat characteristics.

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.

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.

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