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Review of Hallberg-Rassy 43 Mk I


Hallberg-Rassy 43 Mk I
Hallberg-Rassy 43 Mk I anno 2001. Lord Nelson, Hallberg-Rassy 43 no. 1, leaving Sct. Cathrin, London, July 2022

Basic specs.

sail specifications
The Hallberg-Rassy 43 Mk I or HR 43 Mk I is a large sailboat designed by the Argentine maritime architect Germán Frers in the early 2000.

Looking for a new boat? Find a Hallberg-Rassy 43 Mk I or similar boat for sale

Hull
Deck plan
Deck plan of Hallberg-Rassy 43 Mk I. Lord Nelson, Hallberg-Rassy 43 no. 1, in Limfjorden, June 2022
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 7+2 berths.

Cockpit
Cockpit
Cockpit of Hallberg-Rassy 43 Mk I anno 2001. Lord Nelson, Hallberg-Rassy 43 no. 1, in Smögen, Sweden, October 2023
Rig
Rig
Rig of Hallberg-Rassy 43 Mk I anno 2001. Hallberg-Rassy 43 MK 1 no. 1 of Hvide Sande. First owner was Magnus Rassy who named it Lord Nelson inspired by a name of a small fishing house in Gullholmen West of the HR-Yard in Ellös
The boat 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.

Keel

The Hallberg-Rassy 43 Mk I 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 long keel.

The boat can only enter major marinas as the draft is about 2.00 - 2.10 meter (6.56 - 6.86 ft) dependent on the load. See immersion rate below.


Engine

Hallberg-Rassy 43 Mk I is typically equipped with an inboard Volvo Penta TMD 22 diesel engine at 78.0 hp (58 kW), which gives a max speed about 7.7 knots.

The fuel tank has a capacity of 395.0 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.

Stability and Safety

What is Capsize Screening Formula (CSF)?

The capsize screening value for Hallberg-Rassy 43 Mk I is 1.76, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.


EU classification

Hallberg-Rassy 43 Mk I holds one CE certification:

The boat is by European Union certified as Class A. OCEAN:
Designed for extended voyages where conditions may exceed wind force 8 (Beaufort scale) and significant wave heights of 4 m and above but excluding abnormal conditions, and vessels largely self-sufficient.


Theoretical Maximum Hull Speed

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 8.3 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 43 Mk I is about 321 kg/cm, alternatively 1798 lbs/inch.
Meaning: if you load 321 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1798 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 Hallberg-Rassy 43 Mk I is 33.6.

Low High 58% 0 50 100
Comparing this ratio with similar sailboats show that it is more comfortable than 58% of all similar sailboat designs. This comfort value is just above average.


L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Hallberg-Rassy 43 Mk I is 3.33.

Slim Wide 58% 0 50 100
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 Hallberg-Rassy 43 Mk I is 35%.

Low High 38% 0 50 100
This ballast ratio shows a righting moment that is higher than 38% of all similar sailboat designs. A righting moment (ability to resist heeling) just below average.


D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Hallberg-Rassy 43 Mk I is 218 which categorizes this boat among 'light crusers & offshore racers'.

Heavy Light 58% 0 50 100
58% 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)

SA/D (Sail Area Displacement ratio)
Indicates how fast the boat is in light wind:
- Cruising Boats have ratios 10-15
- Cruiser-Racers have ratios 16-20
- Racers have ratios above 20
- High-Performance Racers have ratios above 24
Sail-area/displacement ratio (SA/D ratio): 17.34


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 54m2 (581 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

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
UsageLengthDiameter
Jib sheet 13.6 m(44.5 feet)16 mm(5/8 inch)
Genoa sheet13.6 m(44.5 feet)16 mm(5/8 inch)
Mainsheet 33.9 m(111.3 feet)16 mm(5/8 inch)
Spinnaker sheet29.9 m(97.9 feet)16 mm(5/8 inch)

Boat owner's ideas

This section shown boat owner's changes, improvements, etc. Here you might find inspiration for your boat.

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



Finally

We are always looking for new photos. If you can contribute with photos for Hallberg-Rassy 43 Mk I 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